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At an outdoor market, a bunch of bananas is set into oscillatory motion with amplitude of 20.0 cm on a spring by a force constant of 16.0 N/m. It is observed that the maximum speed of the bunch of bananas is 40.0 cm/s. What is the weight of the bananas in nektons?
After a 0.250-kg rubber ball is dropped from a height of 1.80 m, it bounces off a concrete floor and rebounds to a height of 1.20 m. (a) Determine the magnitude and direction of the impulse delivered to the ball by the floor. magnitude? direction?
The turbine and associated rotating parts of a jet engine have a total moment of inertia of 30 kg m2. Find the work done by the net torque
A mortar* crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action, How long will the mortar shell remain in the air
A skier who starts from rest reached a speed of 8.0m/s while goind down a ski slope for 5.0s. how far does the skier travel in this time
If the percentage standard error in measuring voltages and currents is 2%, what is the percentage standard error in finding
A child is twirling a 0.0224-kg ball on a string in a horizontal circle whose radius is 0.104 m. The ball travels once around the circle in 0.350 s. Determine the centripetal force acting on the ball
Two workers are moving a slab of ice (m = 410 kg) across the factory floor. As seen from above, one worker exerts a force of 255 N at an angle of -50o, At what angle does the ice slab accelerate
A parallel-plate capacitor with only air between the plates is charged by connecting it to a battery. What is the dielectric constant of this material
A robot holds a 20 meter long steel wire of diameter =2 cm that has a load of 25,000 N on it.. How much will the wire stretch under the load? What is the stress on the wire?
To which, according to the rotational analog of Newton's second law, is the angular acceleration experienced by an object directly proportional?
A 5,20 g bullet moving at 672 m/s strikes a 700 g wooden block at rest on a frictionless surface. What is the speed of the bullet-block center of mass
A river is flowing with a constant speed of 2.00 km/h. A swimmer starts at a dock, swims upstream to another dock that is 550 m away, how long does her round trip take
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