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A child sits 1.75 m from the center of a rotating merry-go-round that makes one complete revolution (spin) in 2.58 seconds.
a. What is the linear speed of the child?
b. What is the child's acceleration (magnitude and direction)?
A pendulum, consisting of a ball of mass m on a light string of length 1.00 m, is swung back to a 45° angle and released from rest. What is the velocity of the ball immediately after the collision
A suspicious-looking man runs as fast as he can along a moving sidewalk from one end to the other, taking 4.00 s. find the ratio of the man's running speed to the sidewalk's speed
The mass density of an object is 16.0 g/cc, and its mass is determined to be 134 g. What is the volume of the object
50 g of gasoline are mixed with 38 g of water. What is the average density of the mixture
Transformer 1 has a primary voltage and a secondary voltage . Transformer 2 has twice the number of turns on both its primary, If the primary voltage on transformer 2 is , what is its secondary voltage
A little cat, Bella, walks in a straight line, which we shall call the x axis, with positive direction to the right. As an observant scientist, you make measurements of her motion and construct a graph of the little feline's velocity as a function..
Two out-of-tune flutes play the same note. One produces a tone that has a frequency of 243 Hz, What is the frequency of the tuning fork
A 1.7 kg rolling hoop with a radius of 9 cm rolls without slipping. If the angular speed of the hoop is 2.46 rad/s , compute rotational kinetic energy of the rolling hoop
A submarine dives to a depth of 190 feet in the ocean. What is the force in pounds acting on a hatch that has a area of 3.7 square feet
An astroid of mass 2.1 x 10^15 kg splits apart. Asume the original astroid was at rest, what is the final velocity of the larger piece after the break, what was the intioal momentum of the system
A meat baster consists of a squeeze bulb attached to a plastic tube. While the bulb is squeezed and free, with the open end of the tube under the surface of the basting sauce.
A tennis ball with a velocity of +7.6 m/s to the right is thrown perpendicularly at a wall. what is the average acceleration of the ball while it is in contact with the wall
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