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A 0.144 kg baseball is moving towards home plate with a speed of 43.0 m/s when it is bunted. The bat exerts an average force of 6.50 Ã? 103 N on the ball for 1.30 ms. The average force is directed towards the pitcher, which we take to be the positive x direction. What is the final speed of the ball?
A very large number (N+1) polaroids are arranged in a sandwich.
The rotor in a certain electric motor is a flat, rectangular coil with 88 turns of wire and dimensions 2.33 cm by 4.20 cm, What is the average power of the motor
A 1260 kg is pulling a 335 kg trailer. Together the car and trailer have the acceleration of 2.15 m/s squared. Find out the net force on the car-trailer combination.
If 40 g of hot water at 80°C is poured into a cavity in a very large block of ice at 0°C, what will be the final temperature of the water in the cavity? Explain how much ice must melt in order to cool the hot water down to this temperature?
A 3.0-kg block sits on top of a 5.0-kg block which is on a horizontal surface. If the force is 10% greater than your answer for (a), what is the acceleration of each block
compute the magnitude of the magnetic force exerted on it.
State the maximum height in terms of a, t_1, and/or g. Note that in this problem, g is a positive number equal to the magnitude of the acceleration due to gravity.
Find out the direction of the train motion
Write down the expression for net torque
A 42-cm-long solenoid, 1.8?cm in diameter, is to produce a 0.030-T magnetic field at its center. If the maximum current is 4.6 A
During a do-it-yourself roof repair project, you are on the roof of your house and accidentally drop your hammer, What is the horizontal distance traveled by the hammer between the instant it leaves the roof and the instant it hits the ground
Two balls of identical mass of 1.152 kg and with identical charges placed on them hang from the ceiling on identical strings of lengths 1.310 m. If the angle with respect to the vertical that the strings form is 24.5 degrees.
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