Light from a HeNe LASER (λ=633nm) passes through a narrow slit and is seen on a screen 2.0 m behind the slit. The first minimum in the diffraction pattern is 1.2 cm from the central maximum. How wide is the slit?
Answers
The width of the slit is approximately 52.75 μm.
The width of the slit can be calculated using the formula for the diffraction pattern. In this case, the first minimum is observed 1.2 cm from the central maximum when light from a HeNe laser with a wavelength of 633 nm passes through the slit and is projected onto a screen 2.0 m away.
The position of the first minimum in a diffraction pattern can be determined using the equation:
θ = λ / (2 * a),
where θ is the angular position of the first minimum, λ is the wavelength of light, and a is the width of the slit.
To find the width of the slit, we need to convert the angular position of the first minimum into radians. Since the screen is located 2.0 m away from the slit, we can use the small angle approximation:
θ = y / D,
where y is the distance from the central maximum to the first minimum (1.2 cm = 0.012 m) and D is the distance from the slit to the screen (2.0 m).
Rearranging the equation and substituting the values, we have:
a = λ * D / (2 * y) = (633 nm * 2.0 m) / (2 * 0.012 m) = 52.75 μm.
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Related Questions
A block is thrown with an initial velocity of 30.0 m/s at an angle of 25.0° above the horizontal. What is the highest elevation reached by the ball in its trajectory in meter? use g=10.0 m/s^2.
Answers
When a block is thrown with an initial velocity of 30.0 m/s at an angle of 25.0° above the horizontal, the highest elevation reached by the block in its trajectory is approximately 14.1 meters.
To determine the highest elevation reached by the block, we can analyze the vertical component of its motion. The initial vertical velocity of the block can be calculated using the equation \(V_{0}y= V_{0}\)* sin(θ), where\(V_{0}\) is the initial velocity \((30.0 m/s)\) and θ is the angle above the horizontal\((25.0°)\) . Substituting the given values, \(V_{0}y = 30.0 m/s * sin(25.0°) ≈ 12.8 m/s.\)
To find the maximum height, we need to determine the time taken for the block to reach its peak. Using the equation Vf = Vi + at, where Vf is the final velocity, Vi is the initial velocity, a is the acceleration (in this case, acceleration due to gravity, which is \(-10.0m/s^{2}\) since it acts in the opposite direction), and t is the time taken, we can set Vf = 0 to find the time at the peak. Rearranging the equation, we get \(0 = 12.8 m/s - 10.0m/s^{2} * t.\)Solving for t, we find t ××≈ \(1.28\) seconds.
Next, we can calculate the maximum height reached using the equation \(h = Viy * t + 0.5 * a * t^{2}\), where h is the maximum height, Viy is the initial vertical velocity, t is the time, and a is the acceleration. Substituting the values, we have\(h = 12.8 m/s * 1.28 s + 0.5 * (-10.0m/s^{2} ) * (128m)^{2} = 14.1m\) meters. Therefore, the highest elevation reached by the block in its trajectory is approximately 14.1 meters.
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What advantage is gained by having so many steps in one signal transduction pathway?A) Greater amplification of the signalB) Greater size of genome to code for proteinsC) Increased number of proteins to be synthesized by the cellD) Increased time interval between signal and response
Answers
"The advantage gained by having so many steps in one signal transduction pathway is the greater amplification of the signal." Correct option is A.
In the majority of signal transduction pathways, a signal is amplified such that most steps yield a bigger number of active components than prior steps. Signal amplification, for example, leads in a liver cell releasing numerous glucose molecules after detecting just a single molecule of epinephrine.
Since signalling systems need to be responsive to modest quantities of chemical signals and act quickly, cells generally adopt a multi-step pathway that sends the signal swiftly, while amplifying the signal to several molecules at each stage.
One of the key components of many cell signalling pathways is the amplification of signals, which is defined as a rise in signal strength across intracellular process networks.
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what minimum thickness should the magneisum fluoride film have if the reflection of the light is to be suprressed
Answers
The minimum thickness of the magnesium fluoride film to suppress the reflection of light at a wavelength of 500 nm is approximately 91 nanometers.
To suppress the reflection of light using a magnesium fluoride film, we can utilize the concept of thin-film interference.
The minimum thickness required to achieve destructive interference and minimize reflection depends on the wavelength of light and the refractive indices of the film and the surrounding medium.
The condition for destructive interference in a thin film is given by the equation:
2t = (m + 1/2) * λ / n
Where:
t is the thickness of the film,
m is an integer representing the order of the interference,
λ is the wavelength of light in vacuum,
n is the refractive index of the film.
In this case, since we want to suppress the reflection, we want to minimize the reflection at a specific wavelength of light. Let's assume we are considering visible light with a wavelength of 500 nm (5 × 10^-7 m).
The refractive index of magnesium fluoride (MgF2) is approximately 1.38 for visible light.
Substituting the values into the equation, we can solve for the minimum thickness:
2t = (m + 1/2) * λ / n
2t = (1/2) * (5 × 10^-7 m) / 1.38
t = (1/4) * (5 × 10^-7 m) / 1.38
t ≈ 9.1 × 10^-8 m or 91 nm
Therefore, the minimum thickness of the magnesium fluoride film to suppress the reflection of light at a wavelength of 500 nm is approximately 91 nanometers.
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Which of the following statements is NOT correct for eclipses in the SunEarth-Moon system? An eclipse of the Mopn occurs only at full Moon.
An eclipse of the Sun occurs only at new Moon. An ecipse of the Sun occurs at only full Moon Eclipses of Moon and Sun do not occurat quarter Moon phases.
Answers
Answer: An eclipse of the Sun occurs at only full Moon
Explanation:
for this material, what stopping potential v0 would be required for light at a wavelength of 400 nm?
Answers
The stopping potential v0 for a photon with a wavelength of 400 nm is approximately 1.068 x 10⁻¹⁸ J.
The stopping potential v0 is a measure of the energy required to stop a charged particle, such as an electron or a photon, in a material. It is typically expressed in electron volts (eV) and is related to the work function of the material.
For a photon with a wavelength of 400 nm, the stopping potential v0 would depend on the work function of the material it is passing through. The work function is a measure of the energy required to free an electron from the surface of a material, and it is typically expressed in electron volts (eV).
To calculate the stopping potential v0 for a photon with a wavelength of 400 nm, we can use the following equation:
v0 = hf / (2me)
where h is Planck's constant, f is the frequency of the photon, and me is the mass of an electron. Substituting the given values, we get:
v0 = (6.626 x 10⁻³⁴ J s) * (c / λ)
= (6.626 x 10⁻³⁴ J s) * (3 x 10⁸ m/s) * (400 x 10⁻⁹ m)
= 1.068 x 10⁻¹⁸ J
Therefore, the stopping potential v0 for a photon with a wavelength of 400 nm is approximately 1.068 x 10⁻¹⁸ J.
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When an electric fan is running, most of the incoming electrical energy changes into which kind of energy?
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During a demonstration of Newton’s laws of motion, a student used the setup shown in Figure 1. The student flicked the index card with a fingertip, and the coin fell straight down into a plastic cup as shown in Figure 2.
A: A falling body accelerates at a constant speed.
B: The motion of an object is constantly changing due to magnetic forces.
C: The force friction causes an object in motion to move faster.
D: An object remains at rest, or at a constant speed, an unbalanced force acts on it.
Answers
Answer:
D. An object remains at rest, or at a constant speed, an unbalanced force acts on it.The coin was at rest until the card was removed, so it tended to remain in the same location. Once the card was gone, the unbalanced force of gravity caused the coin to fall.
I hope this helped!+*♡
Explain what happens to matter as it is cooled?
Answers
Answer:
Explanation:
When a substance is heated, it gains thermal energy. Therefore, its particles move faster and its temperature rises. When a substance is cooled, it loses thermal energy, which causes its particles to move more slowly and its temperature to drop.
Answer:
When a sample of solid, liquid, or gas matter cools down, it contracts. When matter cools down, its particles lose kinetic energy. The decreased kinetic energy lets the particles come closer together.
Explanation:
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You are planning measurements of vibrations of a flagpole in a strong wind flow. As the wake is also vibrating, you can measure those oscillations also in the flow with a hot wire anemometer (you can reference the coursework exercise on the hot wire anemometer). Make a sketch of the system with the major components needed to achieve a value of this dominant frequency from the flow. Describe the physical principle how a hot-wire is used to convert the flow signal into an electrical signal. The Strouhal-number of the pillar is Sr=0.2 and the diameter of the pillar is 20cm. What information and value can be gained from it, if you have measured the frequency to be f=20Hz?
Answers
By using a hot wire anemometer and measuring the dominant frequency of the flow, we can determine the velocity of the flow around the flagpole.
To measure the dominant frequency of vibrations in the flow around a flagpole using a hot wire anemometer, the following components are needed:
Flagpole: This is the main structure being investigated, with a known diameter of 20 cm and a Strouhal number (Sr) of 0.2.
Hot wire anemometer: The anemometer consists of a thin wire made of a temperature-sensitive material, such as platinum or tungsten. The wire is mounted in the flow and heated to a constant temperature using electrical current.
Signal conditioning circuitry: This circuitry is responsible for controlling the current passing through the wire and measuring the voltage across it.
Data acquisition system: This system records the electrical signal from the hot wire anemometer for further analysis.
The physical principle behind the hot wire anemometer is that as the flow velocity increases, it cools the heated wire, causing a change in its resistance. This change in resistance leads to a variation in the voltage across the wire, which is proportional to the flow velocity.
By measuring the dominant frequency of the flow using the hot wire anemometer, valuable information can be obtained.
In this case, if the measured frequency is f = 20 Hz, and the Strouhal number (Sr) is known to be 0.2, we can calculate the flow velocity (V) as follows:
V = Sr * f * d
where d is the diameter of the flagpole. Plugging in the values, we have:
V = 0.2 * 20 Hz * 0.2 m
V = 0.8 m/s
Therefore, the obtained information is that the flow velocity around the flagpole is 0.8 m/s.
In conclusion, by using a hot wire anemometer and measuring the dominant frequency of the flow, we can determine the velocity of the flow around the flagpole.
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(a) the arrow on the rightmost point represents the needle of a compass. On each of the remaining four points, draw an arrow to show the orientation of a compass needle at that point. \
Answers
To draw the arrows showing the orientation of the compass needle at each point, we need to know the magnetic field lines of the bar magnet.
What must be the position of arrows between the north and south poles?The arrows on the points in between the north and south poles should be curved, following the shape of the magnetic field lines. The arrow on the rightmost point, representing the compass needle, should align itself with the magnetic field lines and point towards the south pole.
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The diagram for given question is as follows:
what are the dimensions of the lightest open-top right circular cylindrical can that will hold a volume of 1000 cm3 ?
Answers
The dimensions of the lightest open-top right circular cylindrical can be 6.82cm.
How do you determine a hollow cylinder's dimensions?The following is the formula to get the volume of something like a hollow cylinder: The volume of a hollow cylinder is equal to (R2 - r2) h cubic units, where "R" denotes the cylinder's outer radius, "r" its inner radius, and "h" its height. Similar to a prism but having circular bases, a cylinder is a 3-D shape.
How to calculate dimensions of the lightest open-top right circular cylindrical?Given, volume of the cylinder = 1000cm³
volume of cylinder = πr²h
The bottom and sides are included in the surface area:
SA = πr²+2πrh
The second equation may be written as, after solving the first equation for h.
SA = πr² +2πr(V/(πr²)) = πr² +2V/r
Where the derivative is 0, the smallest area for the volume will be discovered.
d(SA)/dr = 2πr -2V/r² = 0
The can radius is thus,
r = ∛(V/π)
and it's height, h = V/(π(V/π)^(2/3)) = ∛(V/π) = r
The dimensions for the specified volume are
r = h = ∛(1000/π) ≈ 6.82cm
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7. (14 points) Consider the language: L5 = {< M > |M is a
Turing machine that halts when started on an empty tape}
Is L5 ∈ Σ0?
Circle the appropriate answer and justify your answer.
YES or NO
Answers
L5 is a language defined as the set of Turing machines that terminate when started on an empty tape. It is a member of Σ0. The answer is YES.
A language is a collection of words or strings that can be formed from a given alphabet set using a specific grammar. The language L5 is defined as the set of Turing machines that halt or stop when run on an empty tape. Σ0 is a set of all recursive languages.
A language L is recursive if there exists a Turing machine that can determine whether a string is in L or not. As the language L5 is a collection of all the Turing machines that halt on an empty tape, it can be determined by a Turing machine. Therefore, L5 is a recursive language and hence, it belongs to Σ0. Thus, the answer is YES.
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Highest molecular motion, highest kinetic energy, no forces of attraction, least dense packaging of molecules."Which state of matter is defined by this description?
Answers
Answer: Plasma
Explanation:
Plasma is a state of matter that consists of hot ionized gas. It should also be noted that plasma contains negatively charged electrons and positive ions.
Therefore, Highest molecular motion, highest kinetic energy, no forces of attraction, least dense packaging of molecules describes plasma.
If earth's mass were half its actual value but its radius stayed the same, the escape velocity of earth would be:________
Answers
If the earth's mass were half its actual value but its radius stayed the same, the escape velocity of the earth would be \(V_e = \sqrt{\dfrac{GM}{r}}\).
What is an escape velocity?The ratio of the object's travel distance over a specific period of time is known as its velocity. As a vector quantity, the velocity requires both the magnitude and the direction. the slowest possible speed at which a body can break out of the gravitational pull of a certain planet or another object.
The formula to calculate the escape velocity of earth is given below:-
\(V_e=\sqrt{\dfrac{2GM}{r}}\)
Given that earth's mass was half its actual value but its radius stayed the same. The escape velocity will be calculated as below:-
\(V_e=\sqrt{\dfrac{2GM}{r\times 2}}\)
\(V_e = \sqrt{\dfrac{GM}{r}}\).
Therefore, If the earth's mass were half its actual value but its radius stayed the same, the escape velocity of the earth would be \(V_e = \sqrt{\dfrac{GM}{r}}\).
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Suppose that you are holding a pencil balanced on its point. If you release the pencil and it begins to fall, what will be the angular acceleration when it has an angle of 10. 0 degrees from the vertical? a typical pencil has an average length of 15. 0 cm and an average mass of 10. 0 g. Assume the tip of the pencil does not slip as it falls.
Answers
Answer: 0.4299s.
Explanation: To find the angular acceleration ,Newton's second angular law will be used.
τ = I α
Wr = I α
The weight is applied in the middle of the pencil , sin 10 = r / (L/2).
r = L/2 sin 10
the moment of inertia will be: I = 1/3 M L²
mg L / 2 sin 10 = (1/3 m L²) α
αf = 3/2 g / L sin 10
α = [3/2 × 9.8] / [0.150 sin10]
α = 17 rad/s²
angle from the vertical to the ground θ = π / 2
t = √ (2 π / (2 α ))
t = √(π / α )
t = √(π / 17)
t = √3.142 / 17
t = 0.4299s
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What are the formulas for these laws? Please help
Answers
Answer:
Explanation:
you haven't mentioned the laws
Jessica stretches her arms out 0.60 m from the center of her body while holding a 2.0 kg mass in each hand. She then spins around on an ice rink at 1.1 m/s.
a. What is the combined angular momentum of the masses?
b. If she pulls her arms into 0.15 m, what is her new linear speed?
I'm really confused ab the explanations behind this. help, please
Answers
Answer:
a.) L = 2.64 kgm^2/s
b.) V = 4.4 m/s
Explanation: Jessica stretches her arms out 0.60 m from the center of her body. This will be considered as radius.
So,
Radius r = 0.6 m
Mass M = 2 kg
Velocity V = 1.1 m/s
Angular momentum L can be expressed as;
L = MVr
Substitute all the parameters into the formula
L = 2 × 1.1 × 0.6 = 1.32kgm^2s^-1
the combined angular momentum of the masses will be 2 × 1.32 = 2.64 kgm^2s-1
b. If she pulls her arms into 0.15 m,
New radius = 0.15 m
Using the same formula again
L = 2( MVr)
2.64 = 2( 2 × V × 0.15 )
1.32 = 0.3 V
V = 1.32/0.3
V = 4.4 m/s
Her new linear speed will be 4.4 m/s
what does it mean to say that a beam of light is polarized? the beam has a magnetic field, but no electric field. the beam itself is charged, carrying either positive or negative charge. the direction of the beam's electric field alternates between two possibilities. the beam has an electric field, but no magnetic field.
Answers
Plane polarized light consists of waves that has magnetic field in which the direction of vibration is the same for all waves.
Polarization, in Physics, is defined as a phenomenon caused due to the wave nature of electromagnetic radiation.Sunlight travels through the vacuum to reach the Earth, which is an example of an electromagnetic wave. These waves are called electromagnetic waves because they form when an electric field interacts with a magnetic field.Light is the interaction of electric and magnetic fields travelling through space. The electric and magnetic vibrations of a light wave occur perpendicularly to each other. The electric field moves in one direction and the magnetic field in another ‘perpendicular to each other. So, we have one plane occupied by an electric field, another plane of the magnetic field perpendicular to it, and the direction of travel is perpendicular to both.Plane polarized light consists of waves in which the direction of vibration is the same for all waves.The process of transforming unpolarized light into polarized light is known as polarization.
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Paragraph Styles Question 4 A condenser is used to condense substances from gaseous to liquid state, typically by cooling it. In this problem, a stream of humid air (58.0 mol % water), 8.8 mol % O₂ and the remaining N₂ enters a condenser at 150°C. 80% of the water vapor in the humid air is condensed and removed as pure liquid water. Both gas and liquid phase streams leave the condenser at 30°C. Nitrogen (N₂) gas leave the condenser at the rate of 5.18 mol/s. (a) Draw and label a flowchart of the process. (4 marks) 1 (b) Solve the total flow rate of the feed stream and both streams leaving the condenser. (c) Taking [N₂ (g, 30°C), O2 (g, 30°C), and H₂O (g, 30°C)] as reference for enthalpy calculations, prepare and fill in the inlet-outlet enthalpy table and calculate the heat transferred to or from the condenser in kilowatts (Neglect the effects of pressure changes on enthalpies)
Answers
(a) Flowchart: A condenser process flowchart is provided, illustrating the inputs and outputs of the humid air stream, O₂, N₂, and the condensed liquid water. (b) Total flow rate: The total flow rate of the feed stream entering the condenser is 5.296F mol/s, considering the flow rates of water vapor, O₂, and N₂. (c) Enthalpy and heat transfer: The enthalpy changes for water vapor and O₂ are calculated, resulting in a heat transfer of -0.072 kF kW, indicating heat removal by the condenser. the heat transferred by the condenser is -0.072 kF kW.
(a) Flowchart:
(b) Total flow rate of the feed stream:
The flow rate of N2 leaving the condenser is given as 5.18 mol/s.
The flow rate of water vapor entering the condenser is 58.0 mol% of F.
80% of the above water vapor is condensed and removed, leaving 20% remaining.
So, 20% of the above water vapor remaining in the humid air after condensation is 0.116F mol/s.
The flow rate of O2 is given as 8.8 mol% of F.
The total flow rate of the feed stream is the sum of the flow rates of water vapor, O2, and N2:
Total flow rate = Flow rate of water vapor + Flow rate of O2 + Flow rate of N2
= 0.116F + 0.088F + 5.18
= 5.296F mol/s
(c) Inlet-Outlet Enthalpy Table:
To calculate the heat transferred by the condenser, we need to determine the enthalpy changes for water vapor (H3 to H4) and O2 (H5).
The enthalpy change for water vapor can be calculated as:
ΔH_vap = Enthalpy of water vapor at 30°C - Enthalpy of water vapor at 150°C
= [40.657 + 0.119 × (30 - 0)] - [40.657 + 0.119 × (150 - 0)]
= -13.607 kJ/kmol
Enthalpy of water leaving the condenser (H4) can be calculated as:
H4 = Enthalpy of water vapor at 30°C = 40.657 kJ/kmol
Enthalpy of O2 leaving the condenser (H5) can be taken as:
H5 = Enthalpy of O2 at 30°C = 0.102 kJ/kmol
The heat transferred by the condenser (q) can be calculated as:
q = Total flow rate × ΔH
= (5.296F mol/s) × (-13.607 kJ/kmol) × 10⁻³ kW/J
= -0.072 kF kW (where kF is the constant conversion factor 10⁶)
Therefore, the heat transferred by the condenser is -0.072 kF kW.
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Why does the blue force have a negative sign?
-20 N
50 N
Because 50 is smaller than 20
Because 20 is smaller than 50
Because it is pointing to the left
Because it is blue
Answers
In order for an ion to have a -1 charge, it must have
Answers
What is a joule? Pls only answer if you know the answer.
Answers
Answer:
the SI unit of work or energy, equal to the work done by a force of one newton when its point of application moves one meter in the direction of action of the force, equivalent to one 3600th of a watt-hour.
Explanation:
Joule, unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of one newton acting through one metre. Named in honour of the English physicist James Prescott Joule, it equals 107 ergs, or approximately 0.7377 foot-pounds.
The horizontal rows on the periodic table are called
Answers
Answer:
periods or series
Explanation:
The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. Elements in the periodic table are organized according to their properties.
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Which scientific activities will Juno conduct on its trip to Jupiter? Check all that apply.
a. measuring the amount of water in Jupiter’s atmosphere
b. landing on the planet surface to collect rock samples
c. taking images of the planet using infrared cameras
d. taking chemical “fingerprints” of Jupiter’s gases
e. mapping Jupiter’s gravitational and magnetic field
f. transporting astronauts to the planet
Answers
Explanation:
Hope this helps,
Juno entered a polar orbit of Jupiter on July 5th 2016 UTC, to begin a scientific investigation of the planet. After completing its mission, Juno will be intentionally deorbited into Jupiters atmosphere. Junos mission is to measure Jupiters composition, gravitational field, magnetic field, and polar magnetosphere.
Answer:
1
3
4
5
or
a
c
d
e
Explanation:
A 2 kg ball is thrown down off a roof 10 meters high. At the bottom when it hits the ground
it is traveling 15 m/s. What is it's kinetic energy as it hits the ground?
Answers
The kinetic energy as it hits the ground with mass of 2kg and velocity 15m/s is found to be 225J
Explain what is kinetic energy?The energy a body has as a consequence of motion is known as kinetic energy. A force has to be applied to an object in order to propel it. We must put in effort in order to apply a force. After the work has been finished, energy is transferred to the item, which then travels at a new, constant speed.
At the bottom when ball hit ground with velocity = 15m/s
KE = 1/2 m v^2 => 1/2 x 2 x 15^2 => 225J
What distinguishes kinetic energy from potential energy?Potential energy is the energy that is kept in reserve in a system or object as a result of its orientation or configuration. An object's kinetic energy is measured in relation to stationary and moving items in its immediate surroundings. Potential energy is irrespective of an object's surroundings.
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Here is the picture of an aircraft, with the forces working on it shown. Identify the force that corresponds to the question mark.
A. Buoyancy
B. Atmospheric pressure
C. Gravity
D. Density
Answers
explanation- it just usb
The force corresponds to the question mark in the given figure is known as Gravity. Hence, option (C) is correct.
The given problem is based on the concept of equilibrium of forces. The forces that causes the net motion of an object to be zero, is known as equilibrium of force.
In the given problem, the lift of an aircraft will be due to the Buoyant force due to the air as a medium. The drag acting the opposite direction of motion of aircraft, tends to resist the motion. The thrust force acting on the aircraft is due to the component of aircrafts, which causes the aircraft to move forward.And the question mark shown in problem is somehow pointing the gravitational force, which always acts in downward direction. And gravitational force highlights the gravity.Thus, we can conclude that the force corresponds to the question mark in the given figure is known as Gravity. Hence, option (C) is correct.
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What is the final velocity of a 50 kg skater that pushes off of a 55 kg skater who moves to the left at 7.2m/s?
Answers
The final momentum of the skater is 3.77 m/s.
What is momentum?Momentum is the product of mass and acceleration. Recall that the principle of conservation of linear momentum states that total momentum before collision must equal the total momentum after collision.
Thus;
(50 Kg × 0 m/s) + (55Kg × 7.2m/s) = (50 Kg + 55Kg) v
v = (55Kg × 7.2m/s)/(50 Kg + 55Kg)
v = 396/105
v = 3.77 m/s
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In an experiment, the factor that changes as a result of what happens
during the experiment (and the scientist measures) is called the __.
Answers
Answer:
The dependent variable
Explanation:
This is because this variable depends on what happens during the experiment.
What is the velocity of a toy car that rolls 350 cm towards a wall in 4.8 seconds?
A. 0.73 cm/s towards the wall
B. 1,680 cm/s towards the wall
C. 354.8 cm/s towards the wal
l D. 72.9 cm/s towards the wall
Answers
Answer:
D. 72.9 cm/s towards the wall
The absence of any mechanical linkage between the throttle pedal and the throttle body requires the use of a _______ motor.
A. Throttle
B. AC
C. DC
D. Stepper
Answers
The absence of any mechanical linkage between the throttle pedal and the throttle body requires the use of a . Stepper motor. Option D.
In modern vehicles, the throttle system is commonly controlled electronically using a stepper motor. A stepper motor is a type of electric motor that moves in discrete steps or increments, as directed by an electronic control unit (ECU) based on inputs from sensors, including the throttle pedal position sensor.
With the use of a stepper motor, there is no direct mechanical connection between the throttle pedal and the throttle body. Instead, the ECU interprets the position of the throttle pedal and commands the stepper motor to move the throttle plate accordingly, regulating the airflow into the engine.
The stepper motor provides precise control over the throttle position, allowing for smooth and accurate adjustments based on driving conditions and engine demands. The ECU can precisely control the throttle opening angle and adjust it in real-time, optimizing fuel efficiency, emissions, and overall engine performance.
Stepper motors are particularly suitable for this application as they can hold their position without power, provide precise control over angular displacement, and offer good torque characteristics.
They are commonly used in drive-by-wire throttle systems, where electronic signals replace mechanical linkages, providing improved responsiveness and integration with other vehicle control systems.
In summary, the absence of a mechanical linkage between the throttle pedal and the throttle body necessitates the use of a stepper motor for electronic throttle control, allowing for accurate and efficient regulation of the engine's air intake. So Option D is correct .
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