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A 19.1 kg box initially at rest is pushed 7.26 m along a rough, horizontal floor by a constant applied horizontal force of 64.6745 N. If the coefficient of friction between box and floor is 0.275, discover the work done by the applied force. The acceleration of gravity is 9.8 m/s2.
at a certain location the earth has a magnetic ?eld of 8.3 times 10-5 t pointing in the northward direction at 44?
A large man sits on a four-legged chair with his feet off the floor. The combined mass of the man and chair is 95.0 kg. what pressure does each leg exert on the floor
The electromagnetic waves used in a microwave oven have awavelength of 12.24 cm.
A square copper plate has a circular hole in its center. Each side of the plate is 23.52 cm, and the radius of the circular hole is 7.827 cm
a stationary billiard ball mass 0.17 kg is struck by an identical ball moving at 3.0 ms. after the collision the second
A long thin uniform rod lies motionless in a friction freehorizontal plane along the y-axis. It is pinned to the ground witha friction free pivot. what force does the pin apply to the rod iniitially
A transport plane takes off from a level landing field withtwo gliders in tow, one behind the other. what minimum length of runway is needed
this question deals with air track experiment and collisions of the track cars. was it necessary to have equal length
Robin hood aims a 500 g arrow at a 2 kg bird perched on a tree. The arrow is released with a speed of 40 m/s at an angle 30 degrees to the horizon. How far from the tree base do the bird and arrow land
Calculate the magnitude of the planes acceleration. On a level road with its brakes on, a car traveling at 93 km/hr stops within 87 m when the brakes lock and the car slides.
The electric field midway between two equal but opposite point charges is 745 N/C, What is the magnitude of the charge on each
a helium nucleus charge 2e moves through a potential difference v -0.60 kv. its initial kinetic energy is 2.90x10-16
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