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A ski tow operates on a 15.0o slope of length 300 meter. The rope moves at 12.0 km/h and provides power for 50 riders at one time, with an average mass per rider of 70.0 kilogram. Find the power required to operate the tow.
A 1.00x10^2 kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.200. What must be the magnitude of P, so that the net work done by it and the k..
The power required by an ice maker is 225 W and is the rate at which it does work. determine the maximum amount of ice the unit can produce in one day
Water Drips at a constand rate from a faucet that is 50.0cmabove a sink. Just as one drop hits the sink, another drop is falling through the air and a third drop is just leaving the faucet.
A uniform cylinder of mass m=8.26 kg and radius R=0.147 m is released from rest on an inclined plane (theta=42.4 deg), What is the magnitude of the angular velocity just before the cylinder reaches the horizontal surface
a globular cluster at its farthest point from the galactic center is at a distance of 104 pc.what is its period of
An object is located 15 cm in front of (to the left of) a converging lens with a focal length of 10 cm. To the right of the converging lens, compute the location of the final image
A man walk 25.0 degree north of east for 3.30 kilometer. Determine how far would a man walk due north and due east to arrive at the same location
A man weighing 720 N lies on a bed of nails. Calculate the pressure exerted on the skin by an acupuncture needle of radius 0.100 mm applied with a force of 5.20 N
The density of a sample of air is 1.205 kg/m3, and the bulk modulus is 1.42 105 N/m2, Find the temperature of the air sample
A line of positive charge is formed into a semicircle of radiusR. The charge per unit length along the semicircle isdescribed by the expressionλ=λ0/θcosθ. Calculate theelectric field at the center of the curvature.
A neutron star has a mass of 2.0 1030 kg (about the mass of oursun) and a radius of 4.8 103 m (about the heightof a good-sized mountain). Suppose an object falls from rest nearthe surface of such a star. How fast would it be moving after ithad fall..
A certain medical machine emits x-rays with a minimum wavelength of 0.025 nm. One day, the machine has an electrical problem and the voltage applied to the x-ray tube decreases to 80 percent of its normal value. Now what is the minimum x-ray wavel..
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