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A 7.0 g bullet is fired into a 1.5 kg ballistic pendulum. The bullet emerges from the block with a speed of 200 m/s, and the block rises to a max height of 12 cm. Find the initial speed of the bullet.
plan a free-body diagram of the wire and bird system. How much tension does the bird produce in the wire? Ignore the weight of the wire.what is the rotational inertia of the wheel.
A person with a near-point distance of 29 cm is able to get a usable magnification of 12 with a particular magnifying glass. What is the friend's near-point distance
A heat engine operates at an efficiency of 15%. what is the amount of heat it discharges to the cold reservoir
A half-Atwood's machine consists of two masses, m1 = 8 kg and m2 = 5 kg, which are connected by a light string that passes over a pulley. what speed will it have just before hitting the floor
A 0.10kg solid rubber ball is attached to the end of a 0.80 m length of light thread. The ball is swung in a vertical circle. Point p, the lowest point of the circle, is 0.20 m above the floor.
A ball of moist clay falls 19.8 m to the ground. It is in contact with the ground for 19.5 ms before stopping. What is the average acceleration of the clay during the time it is in contact with the ground
A cylinder contains a mixture of helium and argon gas in equilibrium at a temperature of 240 C. Boltzmann's constant is 1.38066 × 10?23 J/K, What is the rms speed of helium
Someone at a fifth-floor window (20 m above the ground) hurls a ball downward at 40.0° at a speed of 14.0 m/s. How long does the ball take to reach the sidewalk
A ball is thrown straight upward. At above its launch point, the ball's speed is one-half its launch speed. What maximum height above its launch point does the ball attain
A 7-Kg bowling ball whose radius is 0.13 m is rolling directly towards you, turning 3 times per second. What is its translational angular momentum about you
A plane drops a hamper of medical supplies from a height of 5460 m during a practice run over the ocean. What is the magnitude of the overall velocity of the hamper
In a mall, a shopper rides up an escalator between floors. At the top of the escalator, the shopper turns right and walks 11.72 m to a store. At what angle is the escalator inclined above the horizontal
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