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A football punter accelerates a football from rest to a speed of 13 m/s during the time in which his toe is in contact with the ball (about 0.16 s). If the football has a mass of 0.50 kg, what average force does the punter exert on the ball?
q1. a radio station broadcasts at a frequency of 600000 hz. know that radio waves have a speed of 3.00 x 108ms what is
the acceleration of gravity at the surface of moon is 1.6 m/s^2. A 5.0 kg stone thrown upward on moon reaches a height of 20m, find its intial velocity
A parallel-plate capacitor has plates separated by 0.72 mm. what is the potential difference between the plates
Water starts moving at 10meters per second a the top of the hill at a pressure of 1 atm. It moves down a pipe and exits at the bottom. find the pressure and velocity of the water at the bottom of the hill
a car initially running at 10 m/s applies brake and stops in 10 secs. What is the deceleration produced by the brakes
A golf ball is struck off a tee (negligible height and air resistance) with initial velocity of 50 meters per second at an angle of 30 degrees above the horizontal. Illustrate what will be the vertical component of velocity after 2.5 seconds?
q1. a carnot engine performs work at the rate of 430 kw while using 710 kcal of heat per second. if the temperature of
compute the tension in the rope if the gymnast slides down the rope with a downward acceleration of magnitude 1.40 m/s^2 .
Consider an electron in a hydrogen atom, which is 0.050 nm from the proton in the nucleus, What electric field does the electron experience
An electronic advertising sign repeats a message every 82 seconds, day and night, for a week. how many times did the message appear on the sign
A copper wire is 6.00 m long and has a cross-sectional area of 1.00 multiplied by 10-4 m2. what is the maximum torque that can act on it
n unmarked police car traveling a constant 95 km/h is passed by a speeder traveling 130 km/h. how much time passes before the police car overtake the speeder
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