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The magnitude of the force between two point charges is 12 Newton. If the magnitude of one of the charges is halved, determine what would the magnitude of the force be?
Two guns aimed at 10 degrees above the horizontal are fired at the same time, bullet A travels at twice the speed of bullet B. Which bullet will hit the ground first
A place kicker must kick a football from a point 36 m from the goal. As a result of the kick the ball must clear the crossbar, which is 3.05 m high. Find its height with respect to the crossbar
a straight horizontal conducting rod of length 0.45 m and mass 60 g is suspended by two vertical wires at its ends. a
question a wire loop of radius 0.50 m lies so that an external magnetic field of magnitude 0.30 t is perpendicular to
An incompressible fluid is flowing through a pipe with a constriction. The pipe is on an incline with an angle of 30.0 degrees. What is the pressure in the narrow section of the pipe
A car crashes into a wall at 25 m/s and is brought to rest in 0.1s. Calculate the average force exerted on a 75-kg test dummy by the air bags
At a stop light, a truck of mass, mT = 1.10 x 10^4 kg, fails to hit its brakes until it has hit a car of mass,mC = 1.60 x 10^3 kg. Determine the velocity of the combined truck and car immediately after the collision
A spring is first stretched 2.0 cm from its unstressed length. It is then stretched an additional 1.7 cm.How does the work required for the second stretch compare to the work required for the first stretch (give a ratio of second to first)?
question1a roller coaster car moves 248 ft horizontally and then rises 121 ft at an angle of 30deg above horizontal. it
A 71.0 kg skier is pulled up a frictionless ski slope that makes an angle of 15.0 deg. Determine the magnitude of the force exerted by the rope on the skier
A person is lying on a diving board 3.50 above the surface of the water in a swimming pool. What is the depth of the water at this point
Explain by how much does the potential energy of a 23.0-kg child increase when the child climbs a normal staircase to the second floor?
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