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A 0.145 kg ball moving in the +x direction at11m/s is hit by a bat. The ball's final velocity is 20 m/s in the -x direction. The bat acts on the ball for a duration of 0.01 s.
Find the average force exerted on the ball by the bat. Include the sign of the force to indicate the direction of the force.
A capacitor consists of two parallel plates, each with an area of 17.0cm2 , separated by a distance of 0.150cm. How much energy is stored in the charged capacitor
question1a 30-kg girl is bouncing on a trampoline. throughout a certain interval after leaving surface of the
A car driving on the turnpike accelerates uniformly from 80.0ft/s (54.5mph) to 102ft/s (69.5 mph) in 3.70s. How far does the car travel while it accelerates
Element X decays to element Y with a half-life of 0.77 s. Initially there is a sample of pure X and after 2.31 s there are 7g of Y. What was the mass of the original sample
You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip. Explain how much force must you exert to keep the pole motionless in a horizontal position?
A boxer punches another boxer with 2500N of force. The boxer's fist was traveling 10 m/s at the time of impact. What was the effective mass of the boxer throwing the punch
What actually causes a Cepheid to vary in apparent brightness?
a cylinder with a piston contains 1?2 mole of an ideal gas initially at pressure 4.0 x105 pa and temperature 300k. the
How much charge can be placed on a capacitor with air between the plates before it breaks down if the area of each plate is 9.00 cm2
What is the tension in the rope? In terms of m, g, d, L, and θ, what are the components of the force exerted by the beam on the wall?
A window washer with a mass of 79.0 kg stands a distance, D = 0.800 m, from the left end of a plank of length, L= 1.90 m, Find T2, the tension in the right cable
You are designing the section of a roller coaster ride shown in the figure. Previous sections of the ride give the train a speed of 12.5 m/s at the top of the incline, which is 38.3 m above the ground. What is the minimum radius you can use for the..
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