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A pump lifts 200kg of water per hour a height of 5 meters. Find the minimum necessary power output rating of the water pump in horsepower and watts.
you are traveling on an airplane. the velocity of the plane with respect to the air is 100.0 ms due east. the velocity
A football punter accelerates a football from rest to a speed of 8 m/s during the time in which his toe is in contact with the ball (about 0.26 s). what average force does the punter exert on the ball
As in problem 80, an 89-kg man plans to tow a 102000-kg airplane along a runway by pulling horizontally on a cable attached to it. compute the greatest acceleration the man can give the airplane
a 5 kg block moving at 4.0 m/s collides and sticks with a second stationary block of mass 3.0 kg, find the velocity of blocks after the collision
a ray of light incident upon a mirror makes an angle of 33.9° with the mirror. What is the angle between the incident ray and the reflected ray
a wire 4.0 m long with a mass of 20 g is under tension. a transverse wave is propagated on the wire for which the
At the end of an amusement park ride, you want the gondola to stop without the acceleration exceeding 2 g's. what is the maximum allowed braking force
Two 10-cm-diameter charged rings face each other,15.0 cm apart. Both rings are charged to + 50.0 nC. What is the electric field strength at the midpoint between the two rings? at the center of the left ring?
Your car's wheels are 65 cm in diameter and the wheels are spinning at an angular velocity of 107 rad/s. How fast is your car moving in kilometers per hour
In order better to map the surface features of the Moon, a 325-kg imaging satellite is put into circular orbit around the Moon at an altitude of 1.31 × 102 km
You hit a 0.2 kg golf ball up at 40o from the horizontal. It travels for 4.86 s and stops on an elevated green 10 m above its initial height traveling down at an angle of 35.4o below the horizontal. What is the total impulse on the golf ball when ..
if a proton moved from a location with 10.0v potential to a location with 25.0v potential would its potential energy
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