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Two children are carrying a 2.00-m long uniform level board with a mass 5.00 kg, each supporting one end of the board. A 1.00-kg book is resting on the board a distance 1.20 m from one end of the board. What is the force applied by the child that is closer to the book to support the board?
The men's world record for the shot put, 23.12m, was set by Randy Barnes of the United States on May 20, 1990. If the shot was launched from 6 f above the ground at an initial angle of 42 degrees, what was its initial speed.
Find the net rate of heat loss by radiation from a skier standing in the shade, given the following. She is completely clothed in white (head to foot, including a ski mask)
four positive charges of equal magnitude form the corners of a square. each side of the square has a length of 0.5 m. what is the magnitude of the electric field at the center of the square in n/c
Batteries are recharged by connecting them to a power supply (i.e., another battery) of greater emf in such a way that the current flows into the positive terminal of the battery being recharged
A student has built a 20-cm-long pinhole camera for a science fair project. She wants to photograph the Washington Monument, How far should she stand from the Washington Monument
Illustrate what effect does this transaction have on revenue or expense for the period?(b) Illustrate what effect does it have on stockholder's equity?
A 4.6-{\rm Hz} wave with an amplitude of 20cm and a wavelength of 30cm travels along a stretched horizontal string. How far does a given peak on the wave travel in a time interval of 0.55s ? The answer is dpeak = .76m. How would your answer to par..
Assume the magnitude of the electric field on each face of the cube of edge L = 1.01 m, Determine the net electic flux through the cube
Two masses, m1= 3.32 kg and m2= 5.00 kg are on a horizontal frictionless surface and they are connected together with a rope, What is the acceleration of the whole system, when this maximum force is appiled
If a car travelling at 52 km/h will skid 18 m when its brakes lock, how far-off will it skid if it is travelling at 120 km/h when its brakes lock.
An object's true weight is 123 N. When it is completely submerged in water, its apparent weight is 82 N. what is the density of the object
A 10.0g plastic ball is dropped from a height of 3.30m and is moving at 3.00m/s, How much mechanical energy was lost during the balls fall
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