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A ball is shot from the ground into the air. At a height of 9.1 m, the velocity is observed to be v = (6.8 i + 6.9 j) m/s, with i horizontal and j upward.
(a) To what maximum height does the ball rise?
(b) What total horizontal distance does the ball travel?
(c) What is the magnitude of the ball's velocity just before it hits the gound?
(d) What is the direction of the ball's velocity just before it hits the ground?
A juggler performs in a room whose ceiling is 3.0 m above thelevel of his hands. He throws a ball upward so that it just reachesthe ceiling. What is the time required for the ball to reach the ceiling
a flywheel within large water pump is a solid disk with mass 21 kg and a radius of 0.45 m. starting from rest it begins
A 30.0N force is being applied to one end of a 60.0cm long rigid bar at an angle of 30 degrees. The other end of the bar is connected to a shaft. Calculate the torque being applied to the shaft
A diver springs upward with an initial speed of 1.7 m/s from a 3.0-mboard. Find the velocity with which he strikes the water.
What happens to the resistance of copper wire after dunking it in liquid nitrogen? and what happens to the resistance of a carbon resistor when you dunk it in liquid nitrogen.
The small piston of a hydraulic press has an area of 8.00 cm2. If the applied force is 25.0 N, find the area of the large piston to exert a pressing force of 3600 N
An inexperience novice pilot was taking his brand new Cessna Skyhawk-172R plane for a trip from Tallahassee to Atlanta, which is 375 km due north. What is the speed of the plane in still air
The puck in the figure below has a mass of 0.280 kg. Its original distance from the center of rotation is 40.0 cm, and it moves with a speed of 75.0 cm/s. Determine the work done on the puck
Three capacitors having capacitances of 8.1 uF , 9.0 uF , and 4.7 uF are connected in series across a 37-V. potential difference. What is the total energy stored in all three capacitors
Two astronauts of equal mass 92 kg are holding on to opposite ends of a straight rope in space. The length of the rope between them is 18 meters. What is the new angular velocity of the two astronauts
A laser beam is incident on two slits with a separation of 0.190 mm, and a screen is placed 5.30 m from the slits. what is the wavelength of the laser light
q1. a 80-g ball collides elastically with a 350-g ball that is at rest. if the 80-g ball was travelling in the positive
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