373 Answered Questions for the topic physics C

Physics C Physics Physics B

09/27/21

Please help!!!!!!!!!!!!!!!!!!!
Exactly 3.3 s after a projectile is fired into the air from the ground, it is observed to have a velocity v⃗ = (8.9 i^ + 4.7 j^)m/s, where the x axis is horizontal and the y axis is positive... more
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09/26/21

“An object that was thrown upward is not a free fall” Do you agree on this statement? Explain your answer.
“An object that was thrown upward is not a free fall” Do you agree on this statement? Explain your answer.
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Physics C Chemistry Physics

09/20/21

)By what factor do you need to change the box length, a, to decrease the zero point energy by a factor of 900 for a fixed value of m?
Consider the result for the energy eigenvalues for the one-dimensional box = n = 1,2,3, ... En= (n^2 h^2)/8ma^2a)By what factor do you need to change the box length, a, to decrease the zero point... more
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09/19/21

Physics question about resistors
You are given six resistors each of value 10 ohms, how will you connect them to give a total of 10 ohms? I need this to draw a circuit diagram of this arrangement but am unable to figure it out.
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Physics C Physics Physics B

09/19/21

Please help ((( correct answers only ))))
The position of a particular particle as a function of time is given by r⃗ = ( 9.60ti^ + 8.85j^ - 1.00t2k^)m, where t is in seconds.Part ADetermine the particle's velocity as a function of time.... more
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Physics C Physics Physics B

09/16/21

The position of a particular particle as a function of time is given by r⃗ = ( 9.60ti^ + 8.85j^ - 1.00t2k^)m, where t is in seconds.
Part ADetermine the particle's velocity as a function of time. Express your answer in terms of the unit vectors i^, j^, and k^.v⃗ = _________ m/sPart BDetermine the particle's acceleration as a... more
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Physics C Physics Physics B

09/15/21

A ball is thrown horizontally from the roof of a building 8.6 m tall and lands 9.5 m from the base.
What was the ball's initial speed?Express your answer using two significant figures.v0 = _________ m/s
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Physics C Physics Physics B

09/15/21

A shot-putter throws the shot ( mass = 7.3 kg) with an initial speed of 14.0 m/s at a 33.0 ∘ angle to the horizontal.
Calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of 1.80 m above the ground.Δx =
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Physics C Physics Physics B

09/15/21

A baseball is hit with a speed of 27.0 m/s at an angle of 45.0 ∘ . It lands on the flat roof of a 12.0 m -tall nearby building.
If the ball was hit when it was 1.5 m above the ground, what horizontal distance does it travel before it lands on the building?Express your answer using two significant figures.Δx = ... more
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Physics C Physics Physics B

09/15/21

A diver running 2.2 m/s drives out horizontally from the edge of a vertical cliff and 2.7 s later reaches the water below.
Part A How high was the cliff ?Express your answer using two significant figures.Part B How far from its base did the diver hit the water?Express your answer using two significant figures.
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07/30/21

Youngs double slit Experiment
The following apparatus is used to investigate the light interference using a double slit. The distance, y, between the slits and the screen can be adjusted. The slit width, S, can also be... more
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07/30/21

Photoelectric effect
When light of sufficient energy hits the cathode, photoelectron are ejected towards the anode. A voltage can be applied so that no current is measured at the ammeter. This is known as stopping... more
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Physics C Physics Physics B

07/27/21

Problem Solving
1. A fluid system has a temperature of 83oF. What is its temperature expressed in Kelvin?2. A Celsius and Fahrenheit thermometer are used to measure the temperature of a certain substance. If the... more
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Physics C Physics Physics B

07/14/21

Standing Waves Question
A stretched spring is fixed at both ends. Students wiggle the string. They discover that at one frequency, they can create a standing wave with a wavelength of 𝜆A = 0.7000 m. At a different... more
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Physics C Physics Physics B

07/14/21

slove the math step by step with formula
A projectile is fired at an angle 30 ° from a gun that is 45 m above the flat ground, emerging from the gun with a speed of 300 m/s. (a) How long does the projectile remain in air? (b) At what... more
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Physics C Physics Physics B

07/13/21

Slove the question step by step.
If two resistors R1 and R2 are connected in parallel, the equivalent resistance becomes 𝑅𝑒𝑞 = 𝑅1.𝑅2/𝑅1+𝑅2 . If 𝑅1 = 22.0 Ω ± 1.1 Ω 𝑎𝑛𝑑 𝑅2 = 47.0 ± 4.7 Ω, find the percentage error in the... more
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07/12/21

Slove the math step by step and also give the formula..
If two resistors R1 and R2 are connected in parallel, the equivalent resistance becomes, 𝑅𝑒𝑞= 𝑅1𝑅2𝑅1+𝑅2 . If 𝑅1=10±0.5 Ω 𝑎𝑛𝑑 𝑅2=4.7±0.2 Ω, find the percentage error in the calculation of the... more
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06/02/21

Electricity, resistance, current, voltage, physics
a circuit operates at 1000 watts, within the circuit we have a 10 ohm, 20 ohm, and 40 ohm resistors.a) if the resistors are connected in parallel, what would their equivalent resistance be? b)... more
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Physics C Physics Physics B

05/31/21

Physics Question: Suppose we watch the bee during the time interval from 10 s to 100 s and determine that x(t) = 10.0 m + (1.0 m/s)t, y(t) = 16 m + (4.0 m*s)t^(-1), and z(t) = 6.0 m.
Suppose we watch the bee during the time interval from 10 s to 100 s and determine that x(t) = 10.0 m + (1.0 m/s)t, y(t) = 16 m + (4.0 m*s)t^(-1), and z(t) = 6.0 m.y(t) = 16 m + (4.0 m*s)t^(-1)It... more
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Physics C Physics Physics B

05/30/21

please answer ASAP ... magnetism college-level physics
A negatively-charged particle travels parallel to magnetic field lines within a region of space. Which one of the following statements concerning the force exerted on the particle is true? The... more
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05/30/21

please help ASAP magnetism physics

A charged particle is moving through a constant magnetic field. Does the magnetic field do work on the charged particle? no, because the magnetic force is always perpendicular to the velocity of... more
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05/30/21

magnetism / magnetic field and forces/ college-level physics please answer ASAP
I have a question that asks to find the magnetic forces of the sides of a rectangular loop of wire in a region of a uniform magnetic field. i know that the formula is F = I x L x B x sinθ and the... more
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05/29/21

magnetism/ college-level physics HELP ASAP
positively charged particle is stationary in a constant magnetic field within a region of space. Which one of the following statements concerning the particle is true? The particle will not move.... more
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05/21/21

When the terminals of a 100-volt battery are connected to 2 large parallel horizontal plates 2cm apart, the electric field in the region...
When the terminals of a 100-volt battery are connected to 2 large parallel horizontal plates 2cm apart, the electric field in the region between the plates is very nearly uniform with magnitude E=... more
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05/19/21

Potential energy/velocity
roller coaster 1: Potential energy: 1,617,000J, mass 5,500kgRollercoaster 2: potential energy: 2,205,000J, mass: 5,000kggravitational constant: 9.8 roller coaster 1 has no kinetic energy, and at... more
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