Answers
Answer:
i think its bulb 2
Explanation:
Related Questions
HELP PLEASE WITH PUTTING science DEFINITION IN THE RIGHT PLACE
Answers
1. dependant variable
2. graph
3. model
4. experiment
6. scientific law
9. hypothesis
11. independent variable
12. theory
14. volume
15. society
A proton and an electron are placed in an electric field. Which undergoes the lesser acceleration?.
Answers
An Electron will undergoes the lesser acceleration
What is Proton and Electron ?An electron is a negatively charged particle of equivalent magnitude to a proton, which is positively charged. Therefore, they will feel the same amount of electric force when exposed to an electric field. As a result, the relationship between acceleration and mass will be inverse. An electron will accelerate more quickly than a proton because an electron has a lower mass.
Due to their opposite polarity, an electron and a proton are attracted to one another by an electrical force of equal strength when they are placed in an electric field. However, because of their opposing charges, the force will act in the opposite direction.
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Chicago, il is currently in the e climate zone.
a) true
b) false
Answers
Answer:
false
Explanation:
How does solar energy work
Answers
Answer:
When the sun shines onto a solar panel, energy from the sunlight is absorbed by the PV cells in the panel. This energy creates electrical charges that move in response to an internal electrical field in the cell, causing electricity to flow.
A temporary structure loses 60 kWh of energy each day. If modifications to the structure are made so that the energy flux decreases by a factor of 0.5 and the insulated area increases by a factor of 2, what will the new energy loss per day be
Answers
The new energy loss per day would be 15 kWh.
Loss of energy occurs as energy in a system moves from inside the system to outside it. This can occur in terms of temperature, movement, etc.
Fortunately, energy loss can be reduced to make the system more efficient, this is possible through strategies such as increasing insulated areas and controlling energy flux.
In the system presented we know the previous energy loss was 60kWh. But two strategies have been used to decrease it:
Control of energy flux = Decreases loss by 0.5Insulated area = Decreases loss by a factor of 260kWh / 2 = 30kWh30kWh x 0.5 = 15kWhLearn more about energy in: https://brainly.com/question/1932868
What is the atomic mass of N2-
Answers
Answer: 28.0134 g/mol
Explanation:
For a molecule (for example, nitrogen, N2) the mass of molecule is the sum of the atomic masses of the two nitrogen atoms. For nitrogen, the mass of the N2 molecule is simply (14.01 + 14.01) = 28.02 amu.
If the current in an inductor is doubled, by what factor is the stored energy multiplied?
a. 4
b. 1/4
c. 2
d. 1/2
e. 1
Answers
_______________
\(I_2=2I_1\)
\(L=\text{const}\)
_______________
\(\displaystyle \frac{W_2}{W_1}\; - \;?\)
_______________
\(\displaystyle \boldsymbol{\frac{W_2}{W_1}}=\frac{\dfrac{LI_2^2}{2} }{\dfrac{LI_1^2}{2} } =\frac{I_2^2}{I_1^2} =\bigg(\frac{I_2}{I_1} \bigg)^2=\bigg(\frac{2I_1}{I_1} \bigg)^2=2^2=\boldsymbol{4}\)
So I know this is a weird question but if you were to send a piece of paper from the Milky Way to the andromeda galaxy how long would it take (please don’t answer with I don’t know people keep doing that)
Answers
Answer:
Roughly 4.5 billion years
where does a roller coaster have the most potential energy
Answers
Answer: the motor ......................................................................
Answer:
The top
Explanation:
Potential energy is the product of height, acceleration due to gravity, and mass, so the higher the height is, the higher the potential energy.
This means that at the very top point of the rollercoaster, you will have the most potential energy.
Name the fundamental units used in Physics.
Answers
Answer:
Length - meter (m)
Time - second (s)
Amount of substance - mole (mole)
Electric current - ampere (A)
Temperature - kelvin (K)
Luminous intensity - candela (cd)
Mass - kilogram (kg)
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A boy walks towards a stationary plane mirror at a speed of 12ms^1 what is the relative speed of approach of the boy and his image? (a)zero (b)1.2ms^-1 (c) 2.4ms^-1 (d)1.44ms^-1
Answers
Answer:
a
Explanation:
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Pls helppp. Is this right?
Answers
Answer:
yes you are totally right
Earthquakes also produce transverse waves that move more slowly than the p-waves. These waves are called secondary waves, or s-waves. If the wavelength of an s-wave is 2.3 × 104 m, and its frequency is 0.065 Hz, what is its speed?
Answers
Answer:
The answer is 1495m/s
Explanation:
v=f×wavelength
V=2.3×10⁴×0.065
V=1495m/s
We're given:
Wavelength of s-wave = 2.3 × 104 m (which is 23,000 meters)Frequency of s-wave = 0.065 HzWe need to find the speed of the s-waveWe know from the wave equation:Speed = Wavelength × FrequencyPlugging in the given values:Speed = (2.3 × 104 m) × (0.065 Hz)= 1495 m/sSo the speed of the s-wave is 1495 m/s.
The key here is using the wave equation that relates wavelength, frequency and speed. Given two of those factors, we can solve for the third. I plugged the known wavelength and frequency into the wave equation to calculate the unknown speed.
a soccer ball is kicked horizontally off a cliff with an initial speed of 8 m/s and lands 16 m from the base of the cliff What is the time of flight of the soccer ball?
Answers
The time of flight of the soccer ball is 2 seconds.
Given the following data:
Initial speed = 8 m/sDisplacement = 16 meters.To find the time of flight of the soccer ball;
Mathematically, the time of flight for a horizontal displacement is given by the formula;
\(Time \;of \;flight = \frac{Displacement}{Initial \; velocity}\)
Substituting the values into the formula, we have;
\(Time \;of \;flight = \frac{16}{8}\)
Time of flight = 2 seconds.
Therefore, the time of flight of the soccer ball is 2 seconds.
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A ball is fired from a cannon at point 1 and follows the trajectory shown in the figure below. Air
resistance may be neglected. Five possible vectors are also shown in the figure; the letter E represents
the zero vector.
D
E:
C
B
a
Which vector best represents the ball's velocity at position 2?
Which vector best represents the ball's acceleration at point 2?
Which vector best represents the ball's velocity at position 3?
Which vector best represents the ball's acceleration at point 3?
du
b)
A
d)
Answers
In trajectory, acceleration vector is not the same with the velocity vector but it depends on the change in velocity. The acceleration path is perpendicular to the velocity vector path. The Correct answers are:
a.) D
b.) B
c.) C
d.) A
A Vector is a quantity that has both magnitude and direction.
Given that a ball is fired from a cannon at point 1 and follows the trajectory shown in the figure.
a.) The vector best represents the ball's velocity at position 2 is D
b.) The vector best represents the ball's acceleration at point 2 is B
c.) Which vector best represents the ball's velocity at position 3 = C
d.) Which vector best represents the ball's acceleration at point = A
In trajectory, acceleration vector is not the same with the velocity vector but depends on the change in velocity. The acceleration path is perpendicular to the velocity vector path.
At point 3, since the ball path is parabolic, the velocity at that point is not equal to zero but will tend to take a horizontal path.
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This diagram shows half of the magnetic field of a bar magnet. Carefully draw in the other
half of the field.
Which way does the magnetic field go? Tick the correct box.
From the north pole to the south pole of the magnet. From the south pole to the north pole of the magnet..
Answers
Answer:
Explanation:
If a sample emits 2000 counts per second when the detector is 1 meter from the sample, how many counts per second would be observed when the detector is 10 meters from the sample?
Answers
Given:
The distances are,
\(\begin{gathered} r_1=1\text{ m} \\ r_2=10\text{ m} \end{gathered}\)The sample emits
\(N_1=2000\text{ counts per second}\)To find:
The counts per second when the detector is 10 meters from the sample
Explanation:
The number of particles detected per sec and the distance between the source and the detector is related as,
\(N\propto\frac{1}{r^2}\)So, we can write,
\(\frac{N_1}{N_2}=\frac{r_2^2}{r_1^2}\)Substituting the values we get,
\(\begin{gathered} \frac{2000}{N_2}=\frac{10^2}{1^2} \\ N_2=\frac{2000}{100} \\ N_2=20 \end{gathered}\)Hence, the required count is 20 per second.
Consider a series RLC circuit where the resistance =447 ΩR=447 Ω , the capacitance =2.25 μFC=2.25 μF , and the inductance =35.0 mHL=35.0 mH .
Determine the resonance frequency 0ω0 of the circuit.
0=ω0=
rad/srad/s
What is the maximum current maxImax when the circuit is at resonance, if the amplitude of the AC driving voltage is 36.0 V36.0 V?
Answers
The maximum current in the circuit when it is at resonance, with an amplitude of AC driving voltage of 36.0 V, is approximately 0.0806 A.
The resonance frequency (ω0) of a series RLC circuit can be calculated using the formula:
ω0 = 1 / √(LC)
Given:
Resistance (R) = 447 Ω
Capacitance (C) = 2.25 μF = 2.25 × 10^(-6) F
Inductance (L) = 35.0 mH = 35.0 × 10^(-3) H
Substituting these values into the formula:
ω0 = 1 / √((2.25 × 10^(-6)) * (35.0 × 10^(-3)))
ω0 = 1 / √(78.75 × 10^(-9))
ω0 = 1 / (8.873 × 10^(-5))
ω0 ≈ 11255.74 rad/s
Therefore, the resonance frequency of the circuit is approximately 11255.74 rad/s.
The maximum current (Imax) in the circuit, when it is at resonance, can be calculated using the formula:
Imax = Vmax / R
Given:
The amplitude of AC driving voltage (Vmax) = 36.0 V
Resistance (R) = 447 Ω
Substituting these values into the formula:
Imax = 36.0 V / 447 Ω
Imax ≈ 0.0806 A
Therefore, the maximum current in the circuit when it is at resonance, with an amplitude of AC driving voltage of 36.0 V, is approximately 0.0806 A.
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How dose a scientific theory differ from a hypothesis?
Answers
Answer:This is the Difference Between a Hypothesis and a Theory. ... In scientific reasoning, a hypothesis is an assumption made before any research has been completed for the sake of testing. A theory on the other hand is a principle set to explain phenomena already supported by data.
Explanation:
Which object has a weight of about 22.5 Newtons
A pic is given above
no trolling or a report is getting thrown right at u
Answers
Answer:
Rock
Explanation:
Right on edg 2021 and 2020000000:P
What do you think will be the pressure result of the current experimental conditions?
Answers
Pressure above the left beaker the pressure outcome of the current experimental circumstances.
What do u mean by pressure?Either the action of pressing or the state of pressing. A strain or force exerted against resistance in any direction. Force per unit of area is a measure of force exerted uniformly over a surface.
Pressure is the ratio of the force applied perpendicularly to an object's surface to its area. Its abbreviation is "p" or "P."
The force applied by one region of a gas, liquid, or solid to another, expressed as a function of area. A substance is said to have negative pressure if another substance exerts greater force per unit area on it than it does on it. Pressure is commonly measured in Pascal units, atmospheres, or pounds per square inch. Its value is just the opposite of the pressure the other substance is exerting.
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A cube of volume 1. 00 m^3 floats in gasoline, which has a density of 675 kg/m^3. How large a buoyant force acts on the cube?
Answers
To calculate the buoyant force acting on the cube, we need to determine the weight of the liquid displaced by the cube.
The buoyant force is equal to the weight of the displaced liquid and acts in the opposite direction to gravity.
First, let's find the mass of the displaced liquid:
Density of gasoline = 675 kg/m³
Volume of the cube = 1.00 m³
Mass = Density * Volume
= 675 kg/m³ * 1.00 m³
= 675 kg
Since the cube is floating, the weight of the cube is equal to the weight of the displaced liquid. We can calculate the weight using the formula:
Weight = Mass * Acceleration due to gravity
Acceleration due to gravity is approximately 9.8 m/s².
Weight = 675 kg * 9.8 m/s²
= 6615 N
Therefore, the buoyant force acting on the cube is 6615 Newtons.
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a 2.70 kg ball is attached to a ceiling by a 1.35 m long string. the height of the room is 4.45 m. what is the gravitational potential energy of the ball relative to the ceiling?
Answers
The gravitational potential energy of the ball relative to the ceiling is 87.9 J.
The gravitational potential energy of an object of mass m at a height h above a reference level (in this case, the ceiling) is given by:
U = mgh
where g is the acceleration due to gravity.
In this problem, the ball is suspended from the ceiling by a string, so its height above the ceiling is the length of the string, minus the radius of the ball. Assuming the ball is a sphere with a radius of 0.135 m (half the length of the string), we can calculate its height above the ceiling as:
h = 4.45 m - 1.35 m + 0.135 m = 3.24 m
(Note that we subtract the length of the string from the height of the room, and add half the length of the string to account for the radius of the ball.)
Plugging in the given values, we get:
U = (2.70 kg)(9.81 m/s^2)(3.24 m)
U = 87.9 J
Therefore, the result is 87.9 J.
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A man supports himself and the uniform horizontal beam pulling the rope with a force T.The weights of men and the beam are 883 N and 245 N respectively.Calculate the tension T in the rope and the forces exerted by the pin at A.
Answers
Answer:
T=502.5N
Ax=171.8N
Explanation:
The computation of the tension T in the rope and the forces exerted by the pin at A is shown below:
vertical forces sum = Ay + Tsin20 + T - 245 - 883 = 0
Now
horizontal forces sum = Ax - Tcos70
Now Moment about B
-Ay × 4.8 + 245 × 2.4 + 883 × 1.8=0
Ay=453.6N
Now substitute in sum of vertical forces T=502.5N
Ax=171.8N
a. The tension (T) in the rope is equal to 502.51 Newton.
b. The forces exerted by the pin at A is equal to 171.86 Newton.
Given the following data:
Weight of men = 883 N Weight of beam = 245 NTo calculate the tension (T) in the rope and the forces exerted by the pin at A:
First of all, we would determine the vertical force by taking moment about point B as shown in the diagram.
\(-A_y \times 4.8 + 883 \times 1.8 + 245 \times 2.4 =0\\\\-4.8A_y + 1589.4 + 588 =0\\\\4.8A_y= 3237\\\\A_y=\frac{2177.4}{4.8} \\\\A_y= 453.63 \;Netwon\)
The tension (T) in the rope would be calculated by the sum of the vertical component of forces, which is given by:
\(\sum F_x = A_y + Tsin20 + T - 245 - 883 = 0\\\\453.63 + 0.3420T + T -1128=0\\\\1.3420T = 1128-453.63\\\\1.3420T =674.37\\\\T =\frac{674.37}{1.3420}\)
Tension, T = 502.51 Newton.
To find the forces exerted by the pin at A, we sum the vertical component of forces, which is given by:
\(\sum F_y = A_x - Tcos70 =0\\\\A_x =Tcos70\\\\A_x = 502.51 \times cos70\\\\A_x = 502.51 \times 0.3420\\\\A_x = 171.86\;Newton\)
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find the body's acceleration each time the velocity is zero
Answers
The body's acceleration when the velocity is zero can be found by evaluating the derivative of the velocity-time graph at those points. The acceleration at each instance when the velocity is zero will give the body's instantaneous acceleration at that particular moment.
When the velocity of a body is zero, it means that the body is momentarily at rest. In such cases, we can analyze the body's motion by examining its velocity-time graph.
The points on the graph where the velocity is zero correspond to the instances when the body changes its direction of motion or comes to a temporary halt.
To find the body's acceleration at those instances, we need to calculate the derivative of the velocity-time function. The derivative gives us the rate of change of velocity with respect to time, which represents acceleration.
By evaluating the derivative at the points where the velocity is zero, we can determine the body's acceleration at those specific moments.
It's important to note that the body's acceleration when the velocity is zero can vary depending on the shape of the velocity-time graph and the specific behavior of the body's motion.
The acceleration may be positive if the body is decelerating, negative if it's accelerating in the opposite direction, or zero if the body maintains a constant velocity.
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A box of tools rests in the back of a pickup truck. The truck accelerates to the north and the box remains at rest in the truck. The direction of the friction force on the box of tools is _____.
Answers
Answer:
The direction of friction force is toards north.
Explanation:
A tool box is at rest on the back of a track. The truck is accelerating towards north.
As the frame of reference is acceleratinf so it is a non inertial frame of reference.
Thus, teh toolkit experineces a pseudo force towards the south direction.
According to the question, the toolbox is at rest so the fiction force is balances by teh psheudoforce, and thus teh friction force is acting toards north.
What is equal and opposite, according to Newton's third law?
action
change in velocity
reaction
change in acceleration
Answers
Answer:
Answer: action and reaction
Explanation: Newton's 3rd states that action and reaction are equal and opposite in direction. I hope this helps!
Answer:
Reaction
Explanation:
The law states that every action has an equal and opposite reaction
When is a secondary source more helpful than a primary source?
A. When you want to know the exact data values
B. When you do not need to know the conclusion of the experiment
C. When you do not need many details about the experiment
D. When you are an expert in the field being studied in the experiment
Answers
Answer:
I think the answer is C.
Explanation:
A primary source is a first hand account of an event while a secondary source is a retelling or second hand account meaning as many details will be prevalent.
Your friend is flying a remote control jet in your yard, as seen in the diagram above. As it flies past you, you notice that the sound changes. You ask your friend to fly the jet faster and fly it past you again. Which of the following changes would you expect as it flies towards you at a higher speed and why?
Answers
Answer:c
Explanation:
A process has a total measure of productivity of 1.41 and total inputs of 9,050. what was the output?
Answers
Answer:
12761
Explanation: