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Question: A physics student uses a force P of magnitude 70N and angle = 50 degrees (with respect to the horizontal) to push a 5.2 kg block across the ceiling of her room, as shown in the figure to the right. The coefficient of kinetic friction between the block and the ceiling is 0.35.
A. Draw a free body diagram of the system
B. What is the magnitude of the block's acceleration?
To find the height of an overhead power line, you throw a ball straight upward. The ball passes the line on the way up after 0.65, What is the height of the power line
A copper wire and an aluminum wire of the same length have the same resistance. What is the ratio of the diameter of the copper wire to that of the aluminum wire
A gamma ray (a high-energy photon) can produce an electron (e?) and a positron (e+) of equal mass, What minimum gamma-ray energy is required to accomplish this task
assume all temperatures to be exact and neglect significant figures for small changes in dimension. on a warm day 88 f
The springs of a 1700-kg car compress 4.90mm when its 63.0-kg driver gets into the driver's seat. If the car goes over a bump
Consider the circuit in the figure, with the current directions defined as shown. Calculate the current I2 in amps. Calculate the current I3 in amps. Calculate the current I1 in amps.
charges of 6.0 x 10-7 c are each located at three corners of a square that is 1.0 m on each side. a charge of -1.3 x
In a grocery store, a convex mirror with R= 4.0 m is used for surveillance. Suppose a person of height 1.7 m is 12 m from such a mirror. What is the size of the image
A particle of charge 5.05nC is placed at the origin of an xy-coordinate system, and a second particle of charge -2.04nC is placed on the positive.
A horizontal conductor in a power line carries a current of 5500 A from south to north. Find the magnitude and direction of the magnetic force
Important information about Physics - Mechanics A satellite of mass 205 kg is launched from a site on the Earth's Equator into an orbit at 175 km above the surface of Earth.
two charged dust particles exert a force of 7.3times10-2n on each other. what will be the force if they are moved so
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