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A 40 kg child stands on the edge of a rotating merry-go-round with a radius of 2m. The moment of inertia of the merry-go-round is 200 kg-m^2. The merry-go-round is rotating counterclockwise with an angular speed of 0.5 rad/sec. The child catches a ball of mass 2.0 kg. Thrown at her. The velocity of the ball just before it is caught is 15 m/sec. The ball makes an angle with 60 degrees with the tangent outer edge of the merry-go-round.
a. What is the energy loss during this process?
b. If the catch takes 0.4 seconds, find the average torque on the merry-go-round during the catch.
A force applied to an object of mass m1 produces an acceleration of 3.60 m/s2. find its acceleration under the action of the force
1 search the internet for real applications of statistics in the workplace. as a hint type the word statistics
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Two protons are moving directly toward one another. When they are very far apart, their initial speeds are 2.10 x 105 m/s. What is the distance of closest approach?
How long would it take her to reach the bottom of the hill, assuming she starts from rest and accelerates uniformly, if the elevation change is 324.
A pendulum clock that works perfectly on Earth is taken to the Moon. (a) Does it run fast or slow there? (b) If the clock is started at 12:00 midnight, what will it read after one Earth day (24.0 h)? suppose that the free-fall acceleration on the ..
A bas traveling at 25.0 m/s applies the brakes and decelerates uniformly at a rate of 1.2 m/s ? What is its velocity at the end of this time interval
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A subatomic particle with mass m initially at rest suddenly decays. what is the velocity of the other particle created
An airplane traveling at 480 km/h needs to reverse its course. The pilot decides to accomplish this by banking the wings at an angle of 38o. Find the time needed to reverse course
A thin wire of length 3.14 meters has a current of 6.00 Amperes running through it. what is the magnetic field (in Tesla) inside the cylinder
A starship is exploring a new star system. The ship is a light-minutes away from the star, which has a radius of 106km. The intensity at the location of the starship is 240 W/m^2.
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