377 Answered Questions for the topic physics C

Physics C Physics Physics B

03/20/19

About Physics travelling
A hockey puck is traveling at 12.5 m/s on a floor. The coefficient of friction is 0.15 so how far will it travel before coming to a stop?
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Physics C Physics Physics B

03/20/19

Physics question
How fast would an airplane have to go to make a loop of 220 meters radius to keep from fallout out of the loop or taking negative G’s?
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Physics C Physics Physics B

03/20/19

Another Physics question about radius
How much would a 100-kg object weigh at one earth’s radius above the earth?
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Physics C Physics Physics B

03/20/19

Physics question for the radius
What is the radius of turn for an airplane that is traveling at 42 m/s with a 35-degree bank angle?
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Physics C Math Calculus Physics

11/28/18

What is this equation?
How would I solve for initial v in terms of theta (angle), D (x displacement), H (y displacement), and g (gravity)
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11/28/18

Physics Problem with Variables and Projectile Motion
So we have a physics problem where there is a basketball hoot 1.2 meters above the ground and someone shoots a ball from 10 meters away (x distance) at a 50 degree angle with the ground and we have... more
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Physics C Calculus Physics

11/03/18

What work is required to stretch a spring of spring constant 30 N/m from x=0.25m to x=0.30m
What work is required to stretch a spring of spring constant 30 N/m from x=0.25m to x=0.30m
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Physics C Calculus Physics

11/03/18

A 40N crate is 6.0M up along a 37° inclined plane. What is the magnitude of the work done by the weight of the crate?
A 40N crate is 6.0M up along a 37° inclined plane. What is the magnitude of the work done by the weight of the crate?
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Physics C Science Physics

07/14/18

A physics question, Please answer ASAP
A plane with a speed of 0.9c relative to the ground fires a shell in its direction. According to a system attached to the pilot, the shell appears to be moving away from it at a speed of 0.7c .... more
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05/06/18

A large punch bowl holds 3.35 kg of lemonade (which is essentially water) at 20.0° C.
A 0.40-kg ice cube at−10.2°C is placed in the lemonade. What is the final temperature of the system, and the amount of ice (if any) remaining? Ignore any heat exchange with the bowl or the... more
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05/02/18

A wheel of mass 10 kg and radius 2m rotates with angular velocity w= 2pi rad/s
a)If constant torque is applied to the wheel and it comes to rest in 2 seconds, what is the magnitude of the angular acceleration? b) Calculate the magnitude of the torque required to bring the... more
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05/02/18

A child of mass 20 kg sits at the edge of a merry-go-round of radius 2 m and mass 100 kg...
The merry go round spins freely (w/out friction) at 10 rpm. What is the total angular momentum of the system? Assume that the child is a point mass.
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10/23/17

What volume of iron (density 7.87 g/cm3) would be required to balance a 1.00 cm3 sample of lead (density 11.4 g/cm3) on a two-pan laboratory balance?
What volume of iron (density 7.87 g/cm3) would be required to balance a 1.00 cm3 sample of lead (density 11.4 g/cm3) on a two-pan laboratory balance?
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Physics C

09/25/17

A 100g granite cube slides down a 40 degree frictionless ramp. PLEASE HELP
A 100g granite cube slides down a 40 degree frictionless ramp. At the bottom, just as it exits into a horizontal table, it collides with a 200g steel cube at rest. How high above the table should... more
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04/06/17

Multi-loop circuits with resistors
Find the current I1 in the 0.7 Ω resistor at the bottom of the circuit between the two power supplies. Answer in units of A.    Picture of diagram... more
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Physics C Physics Momentum

01/01/17

Momentum in physics on an explosion
a plastic sphere containing an explosive charge, rolling at 4 m/s undergoes a two dimensional explosion into 3 fragments of equal mass. when viewed from above, one fragment moves at 6 m/s at an... more
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12/16/16

Final Angular Velocity. Need help w/ part 4
A phonograph turntable driven by an electric motor accelerates at a constant rate (i.e., constant angular acceleration) from 0 to 33.33 revolutions per minute in 2 minutes. The turntable is a... more
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Physics C Physics

10/08/16

What is the ratio of the intensity of light emerging from the third polarizer, I3, to the intensity of light incident on the first polarizer, I0?
A beam of initially unpolarized light passes through a sequence of three ideal polarizers. The angle between the axes of the first and second polarizers is 16.9°, and the angle between the axes of... more
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Physics C Physics

10/08/16

What is the width of the slit?
Light of wavelength 603.0 nm is incident on a narrow slit. The diffraction pattern is viewed on a screen 70.5 cm from the slit. The distance on the screen between the third order minimum and the... more
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Physics C Physics

09/28/16

Find the intensity of this wave and calculate the energy flowing?
A traveling sinusoidal electromagnetic wave in vacuum has an electric field amplitude of 52.7 V/m.Find the intensity of this wave and calculate the energy flowing during 16.9 s through an area of... more
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09/25/16

What is the car's acceleration while braking?
A car accelerates uniformly from rest at 12.5 m/s^2 for 10 seconds. It then brakes to a rest over a distance of 1000 meters.
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Physics C Physics Ap Physics

08/27/16

Two Rubber Ball Collision Physics Questions
A rubber ball is shot straight up from the ground with speed v0. Simultaneously, a second rubber ball at height h directly above the first ball is dropped from rest.   1. At what height above the... more
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12/05/15

Hubble Telescope question
The Hubble Space Telescope is a reflecting telescope in orbit about the earth so that its resolution would not be limited by turbulence in the atmosphere. Its objective diameter is 2.4 m. For... more
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12/05/15

Kinetic energy of particles and objects
Calculate the rest energy and the kinetic energy of: a) A 100g ball travelling with the speed of 100m/sb) An electron travelling at a speed of 0.999c. Which one has greater rest energy? Which one... more
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12/02/15

How do lightening rods actually work?
Contrary to popular belief, lightning rods don’t really attract lightning strikes. How to they actually work?     Your answer must be detailed, thorough, explained in terms of physics. 
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