Now observer p walks along the x axis toward antenna a. what is p's distance from a when he first observes fully destructive interference between the two waves?
Answers
P's distance from A when he first observes fully destructive interference is λ/2. The actual numerical value of the distance depends on the specific wavelength of the waves being emitted by the antenna A.
When observer P walks along the x-axis towards antenna A, the distance between them decreases. In order to observe fully destructive interference between the two waves, P needs to be at a distance that satisfies the condition for destructive interference. Destructive interference occurs when the path difference between the two waves is equal to an odd multiple of half the wavelength. The path difference is the difference in the distances traveled by the waves from their respective sources to the observer.
Let's assume that the wavelength of the waves is λ. When P is at a distance of λ/2 from A, the path difference is λ/2, which is equal to half a wavelength. This leads to destructive interference. Therefore, P's distance from A when he first observes fully destructive interference is λ/2.
It's important to note that the actual numerical value of the distance depends on the specific wavelength of the waves being emitted by the antenna A.
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Related Questions
+
figure A
figure B
figure C
figure D
Which figure shows a correct pattern of electric field lines?
Answers
Explanation:
Electric field lines point away from positive charges (like charges repel) and towards negative charges (unlike charges attract). ... Field lines do not touch or cross each other. Field lines are drawn perpendicular to a charge or charged surface. The greater the magnitude of the charge, the stronger its electric field.
Figure B shows a positive charge but has a negative field line so that’s wrong.
Figure C shows a negative charge but has a positive field line so that’s wrong.
Figure D shows a negative charge but has no perpendicular field lines so that’s wrong.
the average no-load voltage in a dc arc welding circuit is ____ volts. 10–20 15–30 60–80 15–40
Answers
The average no-load voltage in a DC arc welding circuit is typically in the range of 60-80 volts.
What is arc welding?Arc welding is a welding technique that uses an electric arc to melt the base metal and fusing it with the filler metal to create a weld. The welding machine supplies an electric current to a consumable electrode or filler wire to melt the metals, forming a weld pool. The two metals fuse when the weld cools down. The weld is as strong as the base metal and can be used to construct everything from automobile components to skyscrapers.
What is the no-load voltage?In a welding circuit, the no-load voltage is the voltage between the welding electrode and the workpiece before a welding arc is struck. Before the start of a welding operation, the circuit is energized and, as a result, the welding machine produces an open circuit voltage. It is also known as the no-load voltage, which is the voltage measured at the output terminals of the welding machine when the welding arc is inactive and the electrode is not in contact with the workpiece.
The average no-load voltage in a DC arc welding circuit is typically around 60-80 volts. This voltage range is necessary to establish and maintain an electric arc between the welding electrode and the workpiece, enabling the welding process to occur efficiently.
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Two duck hunters are seated back-to-back in a boat. How large is the zone-of-fire for each hunter?
180 degrees
135 degrees
90 degrees
45 degrees
Answers
Answer:
180 because it's half of a full rotation before they shoot the other person.
What is the translational kinetic energy, in MeV, of a proton moving at 0.54 of the speed of light ?
Answers
We would apply the relativistic kinetic energy formula which is expressed as
KE = (y - 1)mc^2 = [1/√(1 - v^2/c^2 - 1]mc^2
where
m is the mass of proton
c is the speed of light
v is the speed of the proton
From the information given,
m = 1.67 x 10^-27 kg
c = 3 x 10^8 m/s
v = 0.54c
Thus,
KE = 1.67 x 10^-27 x (3 x 10^8)^2[1/√(1 - (0.54c/c)^2 - 1]
KE = 28.27 x 10^-12 J
We would convert from joules to mev
1 J = 6,241,509,343,260 MeV
28.27 x 10^-12 = 28.27 x 10^-12 x 6,241,509,343,260
KE = 176.48 Mev
the translational kinetic energy is 176.48 Mev
A girl is outside walking on level ground. First she walks 829 m to the east, then 223 m north, and finally 387 m west. What is the magnitude of her displacement? Give your answer in meters correct to at least 1 decimal place. Do not include units in your answer.
Answers
Answer:
not enough information need more information to answer the question
A spring has an maximum displacement of 6m and a period of 8s. What is its position as a function of time?
Answers
Answer: The position of the spring as a function of time is given by: x(t) = 6 * sin(π/4 * t)
where t is the time in seconds and x(t) is the position of the spring in meters.
Explanation:
The position of a spring as a function of time can be described by a sinusoidal function. The general form of such a function is:
x(t) = A * sin(ωt + φ) + x₀
where:
x(t) is the position of the spring at time t
A is the amplitude of the motion (maximum displacement)
ω is the angular frequency (related to the period T by ω = 2π/T)
φ is the phase angle (determines the starting point of the motion)
x₀ is the equilibrium position of the spring (where it would be at rest)
In this case, we know that the maximum displacement (amplitude) of the spring is 6m and the period T is 8s. Therefore, we can calculate the angular frequency ω as follows:
ω = 2π/T
ω = 2π/8
ω = π/4
We also know that the spring is at its equilibrium position when t = 0 (i.e., x(0) = x₀). Therefore, we can set x₀ to 0.
Finally, we need to determine the phase angle φ. This can be a bit tricky without more information, as there are many possible starting points for the motion that would produce a sinusoidal function with the given amplitude and period. For simplicity, we will assume that the spring is at its maximum displacement (positive direction) when t = 0. This means that the phase angle φ is 0.
Putting all of this together, we get:
x(t) = 6 * sin(π/4 * t)
This is the position of the spring as a function of time. It describes a sinusoidal motion with an amplitude of 6m and a period of 8s. The motion starts at the maximum displacement (positive direction) and oscillates back and forth around the equilibrium position (0).
The force that the left team pulls with is 1000 N. If the right team's total mass is 300 kg and they accelerate by 1.2 m/s2, what is the force of resistance on the right team
Answers
Answer:
the force of resistance on the right team is 360 N
Explanation:
Given;
force of the left team, = 1000 N
total mass of the right team, m = 300 kg
acceleration of the right team, a = 1.2 m/s²
The force of resistance of the right team is calculated as;
Force = mass x acceleration
Force, F = 300 x 1.2
Force = 360 N
Therefore, the force of resistance on the right team is 360 N
a lion is running at constant speed toward a gazelle that is standing still, as shown in the top figure above. after several seconds, the gazelle notices the lion and accelerates directly toward him, hoping to pass the lion and force him to reverse direction. as the gazelle accelerates toward and past the lion, the lion changes direction and accelerates in pursuit of the gazelle. the lion and the gazelle eventually each reach constant but different speeds. which of the following sets of graphs shows a reasonable representation of the velocities of the lion and the gazelle as functions of time?
Answers
The graph shown in the first option nicely plots the lion's and gazelle's velocities as a function of time, so option A is the correct answer.
Velocity is the rate of change of displacement over time.
It has SI units as m/s.The total amount of movement of an object per unit time is also called velocity. It depends on both the size and direction of the moving object.Velocity can also be called as speed when distance is taken into consideration instead of displacement.As mentioned in the problem of running at a constant speed towards a gazelle with a standing lion as shown above.
So option A is correct.
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Which are properties of both a gas and a plasma? Check all that apply.
A. Can change shape to conform to a container
B. Has a rigid shape that does not change easily
C. Is made up of free-moving ions and electrons
D. Is compressed more easily than other states
E. Has particles that move freely from place to place
F. Will expand to completely fill a closed container
Answers
Answer:
D, E, and F
Explanation:
Like a gas, plasma lacks a fixed volume and shape. Unlike a gas, plasma can conduct electricity and respond to magnetism. That's because plasma contains charged particles called ions. The particles that make up matter are also constantly moving.
The properties of both a gas and a plasma are:
Is compressed more easily than other states.Has particles that move freely from place to place.Will expand to completely fill a closed container.What are the properties of gas and plasma?A gas lacks both a fixed volume and a fixed shape. While certain gases are palpable to humans and can be seen and felt, others are not. The gases oxygen, helium, and air are a few examples. N2, O2, and CO2 are among the gases that make up the Earth's atmosphere.
Both the volume and shape of plasma are illusive. Ionized gases frequently contain plasma, yet plasma differs from a gas in that it has special characteristics. The plasma is electrically conductive because it contains free electrical charges that aren't attached to atoms or ions. A gas can be heated and ionized to create plasma. Stars, lightning, fluorescent lights, and neon signs are a few examples of plasma.
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Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 5.8 partsimillion (ppm). A researcher believes that the current ozone level is at an insufficient level. The mean of 990 samples is 5.7 pprm. Assume the standard deviation is known to be 1.1. Does the data support the claim at the 0.02 level? Step 1 of 5 : Enter the hypotheses: Answer 2 Points Keyboard shortcuts Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 5.8parts/million (ppm). A researcher believes that the current ozone level is at an insufficient level. The mean of 990 samples is 5.7ppm. Assume the standard deviation is known to be 1.1. Does the data support the claim at the 0.02 level? Step 2 of 5 : Enter the value of the z test statistic. Round your answer to two decimal places. Our environment is very sensitive to the amount of ozonein the upper atmosphere. The level of ozone normaly found is 5.8partsimillion(ppm).A researcher believes that the current ozone level is at an insufficient kevel. The mean of 990 samples is 5.7ppm. Assume the standard deviation is known to be 1.1. Does the data support the claim at the 0.02 level? Step 3 of 5 : 5 pecify if the test is one talled or twotalled. Answer 2 Points Keyboard Shortcuts One-Taileditest Two-Tailed Test Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 5.8 parts/million (pprn). A researcher believes that the current ozone level is at an insufficient level. The mean of 990 samples is 5.7ppm. Assume the standard deviation is: known to be 1.1. Does the data support the claim at the 0.02 fevel? Step 4 of 5 : Enter the decision rule Answerkow to enteryour answer fopens in hewiviouat 2. Points Reject H 0
if z< Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 5.8 parssimillion (ppm). A researcher believes that the current ozone level is at an insufficient level. The mean of 990 samples is 5.7 ppmi Assume the standard deviation is known to be 1.1. Does the data support the claim at the 0.02 level? Step 5 of 5 : Enter the condusion. Answer 2 Points Keybosrd Shortcuis Reject Null Hypothesis Fail to Reject NullHypothesis
Answers
Hypotheses
Null Hypothesis (H₀): The current ozone level is not significantly different from the normal level of 5.8 ppm.
Alternative Hypothesis (H₁): The current ozone level is significantly lower than the normal level of 5.8 ppm.
Z-test statistic
To calculate the z-test statistic, we use the formula:
z = (sample mean - population mean) / (standard deviation / √sample size)
Given:
Sample mean (x) = 5.7 ppm
Population mean (μ) = 5.8 ppm
Standard deviation (σ) = 1.1
Sample size (n) = 990
Plugging in the values:
z = (5.7 - 5.8) / (1.1 / √990)
z ≈ -2.28
Type of test
This is a one-tailed test. We are interested in whether the ozone level is significantly lower, not higher, than the normal level.
Decision rule
Since the significance level is 0.02, we reject the null hypothesis if the z-test statistic is less than the critical value corresponding to a 0.02 (2%) one-tailed significance level.
Conclusion
The z-test statistic value of -2.28 falls in the critical region and is less than the critical value for a 0.02 (2%) one-tailed test. Therefore, we reject the null hypothesis. The data supports the claim that the current ozone level is significantly lower than the normal level at the 0.02 level.
In summary, the data provides evidence to support the researcher's claim that the current ozone level is insufficient at a significance level of 0.02. The calculated z-test statistic of -2.28 falls in the critical region, leading to the rejection of the null hypothesis.
This suggests that there is a significant difference between the observed sample mean of 5.7 ppm and the expected population mean of 5.8 ppm. The ozone level appears to be lower than normal, warranting further attention and investigation.
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A force of 200N was required to pull the arrow back 0.25m in the bow. If the archer were to release the bowstring how much energy would the arrow gain?
Answers
Answer:
50 Joules
Explanation:
Work (J) = Force (N) x Distance (m)
Work (J) = 200 N x 0.25 m
Work = 50 Joules
Work is converted to kinetic energy when the arrow is released.
If a car has a velocity of 50 miles/hour and it accelerates 15 miles/hour^2 for 1 hour. What is the velocity?
Answers
Answer:
65 miles/hr
Explanation:
v0 + a • t = vf
v0 = initial velocity = 50 miles/hr
a = acceleration = 15 miles/hr/hr
t = time displaced = 1 hr
vf = final velocity
50 miles/hr + (15 miles/hr/hr • 1 hr) = final velocity
65 miles/hr = final velocity
Round the following off to required number of significant figures.
137 (2 significant figures)
Answers
Answer:
140
hope this helps
have a good day :)
Explanation:
What is promising evidence of a habitat that might support life
on the planet Mars?
Detailed Answer please, will give thumb up rating definitely
Answers
A promising evidence of a habitat that might support life on the planet Mars is water.
There is evidence supporting the existence of liquid water on Mars from numerous sources. The finding of repeated black streaks on Martian slopes and the presence of hydrated minerals suggest the potential of seasonal or location-specific briny water flows. A necessary component of life as known is liquid water.
Additionally, Mars possesses underground ecosystems that could provide defence against radiation and severe surface conditions. Researchers have found evidence of ancient underground hydrothermal systems as well as beneath ice. These settings might offer consistent conditions for the development of microbial life. Methane gas has been found in the Martian atmosphere, along with variations over time, and this has led to questions regarding its origin. Both geological and biological processes can result in the production of methane.
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each point from the plot on the right represents an observation of the comet's position in polor coordinates. this information is stored in the 2d numpy array observation data. the values are stored in the first row of observation data and the values are stored in the second row of observation data . 1) you are asked to find the orbit using least-squares methods. consider the linear system that consists of every equation of the form where each is a single data point. find the least-squares solution of this linear system. store the solution numbers in beta and e, respectively. 2) the comet is observed at (radians). how far away from the sun is the comet? store the answer as distance.
Answers
we need to solve a linear system to find the least-squares solution of the orbit of the comet and then use the values obtained to find the distance of the comet from the sun when it is observed at a certain angle.
To find the orbit of the comet using least-squares methods, we need to consider a linear system that consists of equations of the form Ax=b, where A is a matrix with every row representing a single data point, x is the vector of unknowns (beta and e), and b is the vector of observations. We can solve this system using the least-squares method to obtain the values of beta and e. Once we have these values, we can use them to determine the orbit of the comet.
To find the distance of the comet from the sun when it is observed at theta radians, we can use the formula r = (beta * (1-e**2))/(1+e*cos(theta)), where r is the distance of the comet from the sun. We can substitute the values of beta and e that we obtained from the linear system into this formula and then substitute the value of theta to get the distance of the comet from the sun. We can store this value as distance.
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Define the unit of current. Name the device which is used to measure
electric current in a circuit.
Answers
Answer:
The ampere, symbol A, is the SI unit of electric current. It is defined by taking the fixed numerical value of the elementary charge e to be 1.602 176 634 x 10-19 when expressed in the unit C, which is equal to A s, where the second is defined in terms of ΔνCs.
the device used to measure current in a circuit is ammeter
You use a horizontal force 25 Newtons N to push a box 3 meters to the right. Find the work you did.
W=Fed
Answers
Answer:
75 J
Explanation:
You want the work done by a force of 25N over a distance of 3 m.
WorkAs your formula tells you, the work is the product of force and distance:
W = Fd
W = (25 N)(3 m) = 75 N·m
UnitsOne newton·meter is one Joule.
= 75 J
__
Additional comment
Both newtons (N) and joules (J) are derived SI units:
1 N = 1 kg·m/s²
1 J = 1 kg·m²/s² = 1 N·m
Formula for work:
\(w=Fd\)
work(measured in joules) = force(measured in newtons) * distance(measured in meters)
__________________________________________________________
Given:
\(F=25N\)
\(d=3m\)
\(w=?\)
__________________________________________________________
Finding work:
\(w=Fd\)
\(w=25\times3\)
__________________________________________________________
Answer:
\(\fbox{w = 75 Joules}\)
Calculate the density of each ball. Use the formulaD = m/Vwhere D is the density, m is the mass, and V is the volume. Record your calculations in Table A of your Student Guide.
Answers
To calculate the density of each ball, we can use the formula D = m/V, where D represents density, m represents mass, and V represents volume.
Let's assume we have two balls, Ball A and Ball B.
For Ball A:
Given mass (m) = 75 grams
Given volume (V) = 50 cubic centimeters
Using the formula D = m/V, we can substitute the values:
Density of Ball A (D_A) = 75 grams / 50 cubic centimeters = 1.5 grams per cubic centimeter
For Ball B:
Given mass (m) = 100 grams
Given volume (V) = 80 cubic centimeters
Using the formula D = m/V, we can substitute the values:
Density of Ball B (D_B) = 100 grams / 80 cubic centimeters = 1.25 grams per cubic centimeter
Therefore, the density of Ball A is 1.5 grams per cubic centimeter, and the density of Ball B is 1.25 grams per cubic centimeter.
Please note that the units for density are typically expressed as mass per unit volume, such as grams per cubic centimeter or kilograms per cubic meter, depending on the system of measurement used.
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c) What is the initial velocity?
d) What is the final velocity at t=6
e) What is the average acceleration? (Use the graph)
Answers
(a) The initial velocity is 0 m/s.
(b) The final velocity at t=6s, is 10 m/s.
(c) The average acceleration is 1.67 m/s².
What is instantaneous velocity?Instantaneous velocity is a measure of how fast an object is moving at a particular moment in time. It is the velocity of an object at a specific instant or point in time, and it is typically represented as a vector with both magnitude and direction.
The initial velocity = 0 m/s
The velocity of the particle at time, t = 6 seconds = displacement/time
velocity = 60 m/ 6s = 10 m/s
The average acceleration = (v₂ - v₁) / (t₂ - t₁)
average acceleration = (10 m/s - 0 m/s )/ (6 s - 0 s) = 10/6 = 1.67 m/s²
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If an object has constant velocity, zero or non-zero, what do we know about the arrows in a free-body diagram? What do we know about the arrows if the object accelerates? Explain your reasoning.
Answers
As a result, the arrows in the free-body diagram that indicate the forces operating on the object will be balanced, equal in magnitude, and pointing in the opposite direction.
What do the lines in the free body diagram stand for?Arrows used in free body diagrams to depict the various forces acting on an item. Force is a vector, as was previously stated. As a result, every force on a free body diagram has a value and a direction.
How can you determine whether an item is accelerating or not from a free body diagram?Newton's rule states that if the net force acting on an object is not zero, then the object's acceleration will also not be zero. Therefore, we will analyse the total force using the free body diagram.
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when does light behave as a wave? when does it behave as a particle?
Answers
In conclusion, light behaves as a wave in interference and diffraction phenomena, and as a particle in the photoelectric effect and interactions with matter.
Light behaves as a wave when it undergoes interference and diffraction phenomena. When light waves pass through a narrow slit, they diffract and produce a pattern of bright and dark fringes on a screen. This phenomenon is called diffraction. Similarly, when two waves interact with each other, they undergo interference, resulting in a pattern of bright and dark fringes. This is also a wave phenomenon.
On the other hand, light behaves as a particle when it interacts with matter, producing a stream of discrete particles called photons. This phenomenon is called the photoelectric effect. When a beam of light is directed onto a metal surface, electrons are emitted from the surface, indicating that light is made up of particles. Additionally, when light interacts with matter, it is absorbed or reflected, which is also a particle phenomenon.
These dual behaviors of light, as both a wave and a particle, are known as wave-particle duality and have been a topic of interest for scientists for centuries.
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George walks to a friend's house. He walks 750 meters North, then realizes he walked
too far. He turns around and walks 250 meters South. The entire walk takes him 13
seconds.
Answers
Answer:
I think you are looking for the velocity, so the answer is 38.5 m/s
Explanation:
Velocity is giving by displacement/time. North will be positive and South will be negative, George travels 750 meters then travels -250 meters his displacement is then 750 - 250 or 500 meters. Divide that by 13 seconds to get 38.5 m/s.
A stone is thrown horizontally at 15 m/s from the top of a cliff 44 meters high. How far from the base does the stone hit the ground?
Answers
Answer:
44.9 m
Explanation:
For ballistic motion in x-y coordinates, an appropriate equation can be ...
y(x) = -4.9(x·sec(α)/v)² +tan(α)x + h0
where α is the angle of launch from the horizontal, and v is the magnitude of the launch velocity.
Here, we have v = 15 m/s, and α = 0, so the equation reduces to ...
y = -4.9/225x^2 +44
For y = 0, we can find x to be ...
x^2 = (44×225/4.9) ≈ 2020.41
x ≈ 44.949
The stone hits the ground about 44.9 meters from the base of the cliff.
State two units bigger than kilogram and how are they related to kilogram
Answers
Answer:
quintal and metric tone.
Explanation:
1 quintal= 100kg
1 metric =1000kg
quintal measures mass of cars, trucks etc, but metric measures bigger things like cargo ships
hope it helps
what is the world record top speed for a NASCAR race car?
Answers
Answer:
THey near 225 MPH at 'Dega
Explanation:
Four radiation doses are as follows: Dose A is 10 rad with an RBE of 1, dose B is 20 rad with an RBE of 1, dose C is 10 rad
with an RBE of 2, and dose D is 20 rad with an RBE of 2. a. Rank in order, from largest to smallest, the amount of energy
delivered by these four doses. b. Rank in order, from largest to smallest, the biological dam-
age caused by these four doses.
Answers
Ranking the doses in order from largest to smallest amount of energy delivered Dose D (40 rad) > Dose B (20 rad) = Dose C (20 rad) > Dose A (10 rad).
a. To rank the amount of energy delivered by the four doses, we need to consider the concept of Relative Biological Effectiveness (RBE). RBE is a measure of the effectiveness of different types of radiation in causing biological damage compared to a reference radiation. In this case, the reference radiation has an RBE of 1.
Dose A: 10 rad with an RBE of 1
Dose B: 20 rad with an RBE of 1
Dose C: 10 rad with an RBE of 2
Dose D: 20 rad with an RBE of 2
To compare the energy delivered, we need to calculate the equivalent dose for each dose using the formula:
Equivalent Dose = Absorbed Dose * RBE
Equivalent Dose for Dose A = 10 rad * 1 = 10 rad
Equivalent Dose for Dose B = 20 rad * 1 = 20 rad
Equivalent Dose for Dose C = 10 rad * 2 = 20 rad
Equivalent Dose for Dose D = 20 rad * 2 = 40 rad
Ranking the doses in order from largest to smallest amount of energy delivered:
Dose D (40 rad) > Dose B (20 rad) = Dose C (20 rad) > Dose A (10 rad)
b. To rank the biological damage caused by the four doses, we can assume that the biological damage is directly proportional to the equivalent dose.
Ranking the doses in order from largest to smallest biological damage:
Dose D (40 rad) > Dose B (20 rad) = Dose C (20 rad) > Dose A (10 rad)
It's important to note that the ranking is based on the assumptions that the RBE values accurately reflect the biological effectiveness of the different types of radiation and that the biological damage is directly proportional to the equivalent dose. In reality, the biological effects of radiation can be more complex and depend on various factors such as the type of tissue irradiated and individual sensitivity.
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boxcar at a rail yard is set into motion at the top of a hump. The car rolls down quietly and without friction onto a straight, level track where it couples with a flatcar of smaller mass, originally at rest, so that the two cars then roll together without friction. Consider the two cards as a system from the moment of release of the boxcar until both are rolling together. Answer the following questions yes or no. (a) Is mechanical energy of the system conserved? (b) Is momentum of the system conserved? Next consider only the process of the boxcar gaining speed as it rolls down the hump. For the boxcar and the Earth as a system, (c) is mechanical energy conserved? (d) Is momentum conserved? Finally, consider the two cars as a system as the boxcar is slowing down in the coupling process. (e) Is mechanical energy of this system conserved? (f) Is momentum of this system conserved?
Answers
A) The given statement "Is mechanical energy of the system conserved" is Yes
B) The given statement "Is momentum of the system conserved" is Yes
C) The given statement "Is mechanical energy conserved" is No
D) The given statement "Is momentum conserved" is Yes
E) The given statement "Is mechanical energy of this system conserved" is No
F) The given statement "Is momentum of this system conserved" is Yes
When the boxcar rolls down the hump, the only forces acting on it are gravitational forces, which are conservative forces. As a result, the mechanical energy of the boxcar-earth system is conserved as it rolls down the hump.The two cars will both be traveling at the same speed and direction once they are coupled together. As a result, the momentum of the system will be conserved when the boxcar and flatcar couple together.
For the boxcar and the Earth as a system, the mechanical energy is not conserved since energy is converted to kinetic energy in the process of the boxcar gaining speed. However, momentum is conserved as the boxcar accelerates down the hump.
When the boxcar is slowing down in the coupling process, energy is converted to thermal energy and sound energy. As a result, the mechanical energy of this system is not conserved. However, the momentum of this system is conserved.
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a block weighing (Fg) 50 N is resting on a steel table (us = 0.74). The minimum force to start this block moving is what N
Answers
Answer:37
Explanation:
A lawyer most likely has __________. a.spatial intelligence b.practical intelligence c.analytical intelligence d.creative intelligence
Answers
The type of intelligence required by a profession depends on its job description. Lawyers most likes have analytical intelligence.
A renowned psychologist named Howard Gardner devised a theory of multiple intelligence. This means that nobody is really not intelligent because a person must posses one or more of these multiple intelligence.
A lawyer has a lot to do with analytic reasoning and comparison of evidence to determine their validity. This task requires a strong analytical mind hence a lawyer requires analytical intelligence.
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A spring with a constant K is pulled back a distance X and allowed to oscillate with a period T on a horizontal frictionless surface. As the mass passes through the equilibrium positions the force of the spring is
Answers
As the mass passes through the equilibrium positions the force of the spring is increasing.
Simple harmonic motion is a specific kind of periodic motion of a body that arises from a dynamic equilibrium between an inertial force that is proportional to the body's acceleration away from the static equilibrium position and a restoring force on the moving object that is directly proportional to the magnitude of the object's displacement and acts towards the object's equilibrium position. Oscillating spring perform SHM.
as the mass passes through the equilibrium position, at the equilibrium position the force is zero and it increases with increase in displacement x according to the relation F = kx.
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