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Two blocks are free to slide along the frictionless wooden track shown below. The block of mass m1 = 5.06 kg is released from the position shown, at height h = 5.00 m above the flat part of the track. Protruding from its front end is the north pole of a strong magnet, which repels the north pole of an identical magnet embedded in the back end of the block of mass m2 = 10.4 kg, initially at rest. The two blocks never touch. Calculate the maximum height to which m1 rises after the elastic collision.
what is the buoyant force on a beachball of diameter 20.0 cm that is HALF submerged in a fresh water pool
an iron cable .80cm in diameter and 25 m long stretches 1.27 cm under a 5100N load a mole of iron has a mass of 56 grams, What is the stiffness ks,i of a single interatomic spring
What is ratio of the applied force
A balloon contains 2.5 L of oxygen gas at 1.0 atm, How much work is done in compressing the balloon at constant pressure
An object is moving along a straight line and the uncertainty in its position is 1.5 m. Find the minimum uncertainty in the momentum of the object
What is the potential energy of a comet of mass m around a star of mass M if it is in elliptical orbit that has a pericenter at a distance R and an apocenter at 4R? What is the total energy of the comet?
A fireman 44 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 22° above the horizontal. If the speed of stream as it leaves the hose is 40m/s, at what height will stream of water strike the buil..
The shell, with radius R and negligible thickness, has net charge - 4.00 q. Find out an expression for the electric field strength outside the sphere, r> R.
An ideal spring is used to fire a 15.0-g block horizontally. The spring has a spring constant of 40 N/m, The kinetic energy of the pellet as it leaves the spring is
An electromagnetic plane wave at a certain location has an electric field pointed up which is given as a function of time as E = 54 V/m × sin (6x106 Hz × t). How much momentum is absorbed by the foil for the same time interval
A woman stands on a scale in a moving elevator. Her mass is 60.9 kg, and the combined mass of the elevator and scale is an additional 819 kg. Starting from rest, the elevator accelerates upward. Through the acceleration, the hoisting cable applies a ..
An electromagnetic wave with frequency 65.0 Hz travels in an insulating magnetic material that has dielectric constant 3.64, What is the speed of propagation of the wave
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