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A 1.3 {\rm kg} block and a2.3 {\rm kg} block are attached toopposite ends of a light rope. The rope hangs over a solid,frictionless pulley that is 28 {\rm cm} in diameter and has a massof 0.78 {\rm kg}. What is the acceleration ofthe lighter block?
One way to measure on another planet or moon by remote sensing is to measure how long it takes an object to fall a given distance. A lander vehicle on a distant planet records the fact that it takes 3.17 for a ball to fall freely 11.26.
a stationary radar operator determines that a ship is 13 km south of him. an hour later the same ship is 25 km
The greatest height reported for a jump into an airbag is 99.4 m by stuntman Dan Koko. In 1948 he jumped from rest from the top of the Vegas World Hotel and Casino. He struck the airbag at a speed of 39 m/s (88 mi/h).
It takes the Mars rover 4.5 minutes to send information via a radio signal traveling at the speed of light back to Mission Control on Earth. How far away is the rover
a 30 kg child on a sled slides down a frictionless slope angled at 15 degrees with respect to the horizontal. what is the magnitude of the wind force, F, such that the acceleration of the child is 1 m/s^2
A 0.520 kg block of wood hangs from the ceiling by a string, and a 0.0700 kg wad of putty is thrown straight upward, How high does the putty-block system rise above the original position of the block
Suppose you form a dipole from two point charges (with a magnitude of charge, q). the postive charge is located at the point x=y=0, z=d/2. and the negative charge is located at x=y=0, z=-d/2. determine the magnitude of the electric field along the..
Calculate the magnitude and direction of the transverse horizontal force acting on the train
A wheel rotating with a constantangular acceleration turns through 22 revolutions during a 3 s timeinterval. What is the angular acceleration of the wheel
A ball is thrown straight upward with a velocity of 39m/s. How much time passes before the ball strikes the ground
If a boat and its riders have a mass of 1500kg and the boat drifts in at 1.4m/s how much work does Sam do to stop it
How fast should a car move toward you for the car's horn to sound 2.88% higher in frequency than as the car is stationary? The speed of sound is 343 m/s.
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