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Three identical masses of 320kg each are placed on the x axis. One mass is at = -120cm , one is at the origin, and one is at = 430cm . What is the magnitude of the net gravitational force on the mass at the origin due to the other two masses?
Take the gravitational constant to be = 6.67×10?11 .
The catapult of the aircraft carrier USS Abraham Lincoln accelerates an F/A-18 Hornet jet fighter from rest to a takeoff speed of 77.33 in a distance of 93.57 . suppose constant acceleration.
The position of an object as a function of time is given by , where is a constant. Find an expression for the instantaneous velocity
A baseball batter swings the bat and applies a force of 36.38 N to the ball for a time of 0.31 s. what is the impulse on the ball
A firefighter standing on a ladder 4.20 meters in the air is using a water hose to put out a fire. How much work is done per minute in lifting the water from the ground
At some point in its orbit, our asteroid is moving with a speed of 20 kilometers per second. Determine the kinetic energy of the asteroid
A stone is thrown upward with an initial speed of 20 m/s. What is its acceleration at the highest point of its trajectory?
describe free-body diagram for the mass. Calculate the tension in each part of the rope.
A kicker's extended leg is swung for 0.4 seconds in a counterclockwise direction while accelerating at 200 deg/s2. What is the angular velocity of the leg
A 4.1×104 locomotive, with steel wheels, is traveling at 7.0 on steel rails when its engine and brakes both fail. How far will the locomotive roll before it comes to a stop
the four particles form a square of edge length a = 4.50 cm and have charges q1 = +25.0 nC, q2 = -50.0 nC, What net electric field do the particles produce at the square's center
Assume the freezer operates for 5 hours each day, how much power does it require while operating
On a certain planet, a 10 kg rock has a gravitational potential energy of 1,056 J when it is resting on a cliff 12 m above the surface
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