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Question: Gravity is the only force acting on a 2 kg mass. The potential energy of the mass increases by 144 J,
Part A: What is the change in velocity of the mass?
I want help to find the change in velocity of the mass.
During a certain interval after leaving the surface of the trampoline, her kinetic energy decreases to 230 J from 440 J. Explain how high does she rise during this interval? Neglect air resistance.
Calculate the work done by an external agent during anisothermal compression of 1.00 mol of oxygen from a volume of24.0 L at 0°C and 1.00 atmpressure to 17.5 L
a tuning fork vibrating at 514 hz falls from rest and accelerates at 9.80 ms2. how far below the point of release is
She wants glasses that will let her see objects at a distance of only 25 cm from her eyes. Examine the focal length of the glasses needed if the glasses are 2 cm and 3 cm from her eyes.
A 240-V dc motor has an armature whose resistance is 1.10? . When running at its operating speed, it draws a current of 16.0A, What is the back emf of the motor when it is operating normally
A ball on a porch rolls 44 cm to the porch's edge, drops 94 cm, continues rolling on the grass, What is the magnitude of the ball's net displacement
A 1 kg ball is attached to a 2 m long piece of very light string and suspended in such a way that it can freely swing and it passes just above the ground.
A thermodynamic system is operated at a constant pressure of 2 atm. Initially the volume of the system is 1m3. How much work is done by the system
A fast, measured pitched baseball left the pitcher's hand at aspeed of 40.0 m/s. How much time did it take him to pitch it
A plumb bob is suspended from a point in the Northern hemisphere at a latitude of 45o. Find the angle this plumb bob makes
A child and sled with a combined mass of 48 kg slide down a snow-covered (and frictionless) hill. Find the kinetic energy at the top of the hill
two point charges are on the y-axis. a 3.5 microc charge is located at y 1.10 cm and a -2.14 microc charge is located
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