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A 5.0 kg object moving on a horizontal surface has an initial velocity, vi=(5.0i+10.0j) when a force F acts on the object for 3 seconds after which velocity is vf=(10i+30j) m/s.
Determine the work done by the force F on the object.
What is the magnitude of the force F?
Rocket-powered sleds are used to test the human response to acceleration. If a rocket-powered sled is accelerated to a speed of 444 m/s in 1.8 seconds, then what is the acceleration and what is the distance that the sled travels?
A bullet of mass 30 g collides completely inelastically with a ballistic pendulum of mass 2.5 kg. The pendulum swings up to a maximum height of 15 cm. Calculate the velocity of the bullet right before it collides with the pendulum
Obtain the Fourier representation of the output of a full-wave rectifier. Plot the first three terms in the expansion and compare with the exact function
An 1865 kg airplane starts at rest on an airport runway at sea level. (a) What is the change in mechanical energy of the airplane if it climbs to a cruising altitude of 2420 m and maintains a constant speed of 96.5 m/s?
A fire hose of radius 0.0300m is connected to the pump outlet on the fire truck. At what average speed does water enter the hose
A small metal sphere of mass 6.9 g and charge 5.9 μC is firedwith an initial speed of 4.9 m/s directly toward the center of asecond metal sphere carrying charge 7.2 μC. This second sphereis held fixed.
an 18 year old strucks a tennis ball that is departed from the racket horizontally with a speed of 28.0 ms. andy
the height of a helicopter above the ground is given by h 2.95t3 where h is in meters and t is in seconds. at t 2.50
From the point of view of the traveler, find what are the implication of length contraction and time dilation for traveling to another solar system at near-light speed
question1two towers have heights of 420 m and 565 m. if objects were dropped from the top of each what would be the
Find the instantaneous acceleration of the mass
A small flywheel starts from rest and spins up to speed in 10 seconds. During this time it completes a total of 300 revolutions. what is the angular acceleration of the wheel
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