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A pitcher throws a 0.140 kg baseball, and it approaches the bat at a speed of 35.0 m/s. The bat does Wnc = 75.0 J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 25.0 m above the point of impact.(Answer in m/s)
One billiard ball is shot east at 3.0 m/s. A second, identical billiard ball is shot west at 1.0 m/s. What are the speed and direction of the first ball after the collision
One possibility for a low-pollution automobile is for it to use energy stored in a heavy rotating flywheel. What is the angular velocity of the flywheel when it has a full "energy charge"
A simple pendulum is made from a L long string and a small ball, mass=m, attached to its free end, Write the lenght of the curve s(t) and specify the time period for small oscillations
During an acceleration, the angular speed of an engine increases from 850 rpm to 2750 rpm in 4.4 s. What is the average angular acceleration of the engine
Ignoring the mass of the spring, what is the mass of the fish?
A spring has an unstretched length of 12cm. When an 80 g ball is hung from it, the length increases by 4.0 cm. What is the period of the oscillation
lab 4 involves the roller coaster and its physics. this simulation can be downloaded from granthams website under
Petrus takes a cold glass of cola from fridge. He puts 3 cubes of ice into it. He laeves the glass on a table in a warm room for 5 minutes. He notices that the ice cubes have become smaller. The outside of the glass is now wet. What is the reason ..
A person goes hiking on the trails in a Park. The trail leads the hiker 6 km north, 4 km east, 2 km north, 2 km west and 5 km south. what is total distance traveled
A solid sphere of radius R carries a volume charge density ?=?0e^r/R, Find an expression for the electric field strength at the sphere's surface
question1the driver of an 1800rm kg car travelling on a horizontal road at 114rm km rm h suddenly applies the brakes.
Unpolarized light of intensity I0 is incident on three polarizing filters. What light intensity emerges from the third filter
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