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A circular-motion addict of mass 90 kg rides a Ferris wheel around in a verticalcircle of radius 10 m at a constant speed of 6.3 m/s.a) What is the period of the motion?b) What is the magnitude of the normal force on the addict from the seat when both go through the highest point of the circularpath?c) What is it when both go through the lowest point?
A balloon is filled with 5.45 liters of helium at a pressure of 1.25 atm and a temperature of 29.5° C. Find the mass of the helium
Two small objects, A and B, are fixed in place and separated by 2.97 cm in a vacuum. Object A has a charge of +2.16 microC, How many electrons must be removed from object A
A car travelling at 105 strikes a tree. The front end of the car compresses and the driver comes to rest after travelling 0.85. What was the magnitude of an average acceleration of the driver during the collision? State the answer in terms of "'s,..
A Jaguar car can accelerate from 0 to 60 mph in 4 sec. What is the average acceleration during this time period
q1.a bat in a cave emits a sound pulse and receives an echo 0.22 second later. assuming that the speed of sound is 339
The vibrational frequency of CO molecule is 6.42 x 1013 Hz. Estimate the amplitude of molecular vibrations.
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 N on him, What is the force of friction between the losing player's feet and the grass
When a parachute opens, the air exerts a large drag force on it.This upward force is initially greater than the weight of the skydiver and, thus, slows him down. Suppose the weight of the skydiver is 902 N and the drag force has amagnitude of 1030..
A rotating wheel requires 5.00 s to rotate 26.0 revolutions. Its angular velocity at the end of the 5.00-s interval is 99.0 rad/s. What is the constant angular acceleration (in rad/s) of the wheel
A baseball has a mass of 0.140 kg, and it is pitched towards home plate at a speed of 54.0 m/s. what is the final speed of the ball
Scenario: You and a friend, who is twice your size, decide to slide down identical water slides at the same time, Who will have the greater momentum at the bottom
A 0.40-kg iron horseshoe is dropped into 1.15L of water in a 0.34-kg iron pot initially at 20.0?C. Determine the initial temperature of the hot horseshoe.
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