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A sperical mirror is polished on both sides. When the convex side is used as a mirror, the magnification is +1/8. What is the magnification when the concave side is used as a mirror, the object remaining the same distance from the mirror?
Sam (85 kg) takes off up a 50-m-high, 10° frictionless slope on his jet-powered skis. The skis have a thrust of 240 N. He keeps his skis tilted at 10° after becoming airborne. How far does Sam land from the base of the cliff.
The coefficient of kinetic friction between each brake pad and the rim is μk = 0.85. What is the magnitude of normal force that each brake pad applies to the rim.
A 3 meter long 200kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction.
a uniform current density of 2.0 ampsm2 is flowing down a cylindrical region of radius 3.0 meters.a use amperes law to
In a game of basketball, a forward makes a bounce pass to the center. The ball is thrown with an initial speed of 2.50 m/s at an angle of 15.5° above the horizontal. It is released 0.73 m above the floor. What horizontal distance does the ball cover ..
In astronomy, a parsec ( pc) is dened as the distance at which an object with a size of 1 astro-nomical unit (AU) would subtend an angle of 1 arc-second. Find the conversion factor between parsecs and astronomical units.
two cars are traveling at equal speeds but in opposite directions. one car sounds its horn at a frequency of 111 hz
What is the coefficient of the kinetic friction of the tires and pavement.
Two stationary point charges of 5.00 nano coulombsand 2.00 nano coulombs are separated by a distance of 60.0 cm. What is the electric potential energy of the electron
the wavelength of a light wave is 700nm in air this light appears red. if this wave enters a pool of water its
A bead with a mass of 0.02 g and a charge of 20nC is free to slide on a vertical rod. At base of the rod is a fixed 20nC charge.
Treat the ball as a uniform, solid sphere, ignoring the finger holes. Illustrate what is the acceleration of the center of mass of the ball?
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