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A bucket of water with a mass of 8.0 kg is attached to a rope that is wound around a cylinder. The cylinder has a mass of 5.0 kg and is mounted horizontally on frictionless bearings. The bucket is released from rest.
(a) Find its speed after it has fallen through a distance of 0.30 m? _____ m/s
(b) What is the tension in the rope? ______ N
(c) What is the acceleration of the bucket?
find the net rate of radiation by a pot at 35.7°C that has been placed in a -23.9°C freezer. The pot's surface area is 0.111 m2 and its emissivity is 0.655.
You are given a slide with two slits cut into it and asked how far apart the slits are. What is the separation of the two slits
A hare and a tortoise compete in a race over a straight course 1.40 km long. The tortoise crawls at a speed of 0.280 m/s toward the finish line. For how long in time was the hare stationary
You are pushing a 150-kg wooden crate in a straight line a distance of 4.5 m across a wooden floor. What is the work done by friction on the crate
Estimate the time the ball is in contact with the floor to be 0.06 seconds. Compute the average force the floor exerts on the ball.
A satellite is orbiting the Earth at a distance of 2.67RE and with a speed of 4.29 km/s. With what speed would the satellite hit the Earth's surface
If the car is moving at 30 m/s at the bottom of the dip, its mass is 800 kg, and the radius of curvature for the dip is 20 m, what is the normal force acting on the car in the dip
A piano tuner sounds two strings simultaneously. One has been previously tuned to vibrate at 283.0 Hz. The tuner hears 5.0 beats per second. What was the original frequency of the untuned string
A 25.0kg child plays on a swing having support ropes that are 1.80m long. How fast will she be moving at the bottom of the swing
q1. a small charge -8.3210-6 c object is tied by a 4.98 cm long piece of thread to the center of a uniformly charged
A projectile of mass 2.0 kg approaches a stationary target body at 5.0 m/s. find the magnitude of the momentum of the target body
A 210-m-wide river flows due east at a uniform speed of 3.5 m/s. A boat with a speed of 6.7 m/s relative to the water leaves the south bank pointed in a direction 37o west of north. How long does it take for the boat to cross the river
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