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The length of a spring increases by 6.7 centimeter from its relaxed length when a mass of 1.5 kilogram is hanging in equilibrium from the spring.
a) Estimate what is the spring constant?
b) Obtain how much elastic potential energy is stored in the spring?
c) A different mass is suspended and the spring length increases by 11.7 centimeter from its relaxed length to its new equilibrium position. Determine what is the second mass in kilogram?
Consider the circuit in the figure below with resistors R1 = 2,400 ?, R2 = 4,400 ?, and R3 = 1,100 ?, What is the magnitude of the current in the circuit
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A block of mass m slides without friction along the looped track shown in the figure. If the block is to remain on the track, even at the top of the circle (whose radius is r), from what minimum height h should it be released?
A ball is thrown from a window with Vo=2m.s at an angle of 53 degrees ABOVE the horizontal. From what height was the ball thrown
a chair of mass 11.5kg is sitting on the horizontal floor the floor is not frictionless. you push on the chair with a
a satellite that weighs 4900N on the launchpad travels around the earths equator in a circular orbit with a period of 1.667h. determine the altitude of the satellite above the earths surface
In an experiment to measure the speed of sound in air, standing waves are set up in a narrow pipe open at both ends using a speaker driven at 687 Hz. What is the air temperature inside the pipe
A man is riding on a flatcar travelling at a constant speed of 9.10. He wishes to throw a ball through a stationary hoop 4.90 above the height of his hands in such a manner that the ball will move horizontally as it passes through the hoop.
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