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A merry-go-round starts from rest and accelerates uniformly over 23.5 s to a final angular velocity of 6.25 rev/min.
(a) Find the maximum linear speed of a person sitting on the merry-go-round 7.00 m from the center.
(b) Find the person's maximum radial acceleration.
(c) Find the angular acceleration of the merry-go-round.
(d) Find the person's tangential acceleration.
A 300kg piano slides 4.10 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.4. Determine the force exerted by the man.
Camera lenses are described in terms of their focal length. A 50 mm lens has a focal length of 50 mm, Locate the position of the image
a pumpkin is pushed horizontally at a speed of 2.2 m/s off of a desktop that is 0.8 meters above the floor. how far frome the base of the desk
At one instant, a 0.26 kg particle is located at the position [r=(5.9m)*i+(5.5m)*j]. What is the angular momentum of the particle about the origin, in unit-vector notation
A rifle is aimed horizontally at a target 50.0 m away, What was the bullet's flight time and What was the bullet's speed as it left the barrel
A cylindrical lead rod with a diameter of 2.54 cm and a length of 76.2 cm is initially at a temperature of 20.0 C. After reaching equilibrium, what is the final temperature of the rod and the mercury
Imagine Bob lives on the earth at rest. Sara is traveling past the earth with a velocity of 9600 m/s, Suppose that a photon of light is passing Sara instead of a meteor. Bob measures the photon speed to be c, the speed of light. What speed does Sar..
A 150 g aluminum cup contains 150 g of water and both are at 13 C. If you add 150 g of hot water at 90 C what is the final temperature at thermal equilibrium? How much hot water at 90 C needs to be added to achieve a final temperature of 44 C?
A 50 kg person is riding a Ferris wheel. The Ferris wheel consists of 8 metal cars, each with mass 1500 kg located 15 m from the center. What is the angular acceleration of the Ferris wheel
An 85 kg man lowers himself to the ground from a height of 5.6 m by holding onto a rope that runs over a frictionless pulley to a 75 kg sandbag
Consider the following fission reaction (1n)+235U --> 90Kr + 142Ba +4(1n) +6 \(\gamma\) where 90Kr and 142Ba are the initial fission fragments. What is the total energy eventually emitted
A 3.1-cm-tall object is 47 cm in front of a converging lens that has a 11.8 cm focal length. Calculate the image position and height. position cm height cm.
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