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A 17-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 32 N. Starting from rest, the sled attains a speed of 2.9 m/s in 9.8 m. Find the coefficient of kinetic friction between the runners of the sled and the snow.
A .5Kg solid mass is totally submerged in water while suspended from a spring balance. Calculate the reading on the spring balance
water flows with soeed1 m/s from a small hole made at the bottom of a tank filled with water. find height of the tank
What is the work completed by the block and tackle system?
A 5.00 X 10-2 kg mass with a charge of +0.75 mC is hung by a thin insulated thread. A charge of -0.9 mC is held 0.15 meters directly to right so that the thread makes an angle q with the vertical. What is the angle q and the tension in the string.
A 44.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.24 102 m/s from the top of a cliff 126 m above level ground, What is the initial total mechanical energy of the projectile
Visualize the one cubic centimeter as formed by stacking up identical cubes, with one copper atom at the center of each. Conclude the volume of each cube.
One of the first signs of sunburn is the reddening of the skin (called erythema). How many photons are incident on the skin in this amount of exposure
The lens of an endoscope is carefully matched such that the light ray from the edge of the lens enters the fiber at an angle. What focal length should the lens have
If the energy that goes into evaporating one kilogram of water from Lake Michigan at 22.0 oC, how high (in m) would it be lifted
Speedboat A negotiates a curve whose radius is 124m. Speedboat B negotiates a curve whose radius is 230m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
A point charge causes an electric flux of -670 N·m2/C to pass through a spherical Gaussian surface of 18.0 cm radius centered on the charge. What is the value of the point charge
A body of mass 200 g is acted upon by a force of 20 n. Find the acceleration of the body. If the body above is having a volume of 1000 cm3 estimate its density in kg/m2.
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