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A 100-kg object and a 400-kg object are separated by 4.20 m.
(a) Find the magnitude of the net gravitational force exerted by these objects on a 64.0-kg object placed midway between them.
(b) At what position (other than an infinitely remote one) can the 64.0-kg object be placed so as to experience a net force of zero from the other two objects?
The normal force equals the magnitude of the gravitational force as a roller coaster car crosses the top of a 49m diameter loop the loop
In an EM wave traveling west, the B field oscillates vertically and has a frequency of 88.0kHz and an rms strength of 6.35×10?9T
e drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half thedistance at 41.0mph, What is her average speed on the return trip
A circular coil of wire with 70.0 Loops and a radius of 0.250 m is placed in a magnetic field of 10.0 T and oriented so that the coil is perpendicular to the field. Find the maximum power developed in the coil
A skier starts from rest at the top of a hill that is inclined at 12.0° with the horizontal. The hillside is 180.0 m long, and the coefficient of friction between the snow and the skis is 0.0750. At the bottom of the hill, the snow is level and the c..
A 110 g copper calorimeter cup contains 190 cm3 of water and 45 g of ice, all in thermal equilibrium. find the mass of water before the hot iron is put into the cup
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The water is near freezing in temperature. Typically a human can only swim in such water for about 300 seconds (or 5 minutes) before hypothermia sets in. Calculate the time the explorer spends in the water
A top has a moment of inertia of 2.78 × 10^?4 kg·m^2 and is initially at rest. It is free to rotate about a vertical stationary axis. What is the angular velocity of the object
A 1700kg car travelling at a speed of 40m/s skids to the halt on wet concrete where f_k = 0.3. How long are the skid marks.
A television set connected to a 121 V outlet consumes 88 W of power. How long does it take for 10 million electrons to pass through the television.
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