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A person pulls a toboggan for a distance of 30.0 m along the snow with a rope directed 20.0° above the snow. The tension in the rope is 67.0 N.
(a) How much work is done on the toboggan by the tension force?
(b) How much work is done if the same tension is directed parallel to the snow?
A gymnast with mass m1 = 49.0 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 119.0 kg and length L = 5.0 m. Each support is 1/3 of the way from each end. Initially the gymnast stands at the left e..
Given an angular velocity of 100rev/min, a mass of 10 kg, with radius .75, how does one find the maximum force
A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends on the time t according to the relation I = (0.884 A) sin [(333 Hz)t]. What is the average power delivered to the light bulb
Electromagnetic radiation is emitted by accelerating charges. The rate at which energy is emitted from an accelerating charge that has charge and acceleration is given by where is the speed of light. Part A If a proton with a kinetic energy of 5.5..
assuming each galaxy contains the mass of 200 billion suns and there are 200 billion such galaxies, what is the schwarzschild radius of the universe
A 1.0-cm-thick layer of water stands on a horizontal slab of glass. What is the ray's direction of travel in the glass
A child of mass 50.0 kg stands 2.00 m from the center of a horizontal circular disc of radius 4.00 m and mass 200 kg. The disc is mounted on a frictionless, vertical axis. Calculate the angular momentum of the disc
Find out the minimum acceleration of the antelope.
A steel (Young's modulus 2.0 x 1011 N/m2) wire is strung between two supports attached to a ceiling. What is the radius of the wire
A 1 uF capacitor is charged when it is connected across a 9 V battery, Find the final charge and the voltage across the plates for the 1 uF and 2 uF capacitor
An Escort and a Camaro traveling at right angles collide and stick together. What was the speed of the Camaro
A car is traveling around a horizontal circular track with radius r = 150 m at a constant speed v = 28 m/s as shown, What is the magnitude of the car's acceleration, What is the x component of the car's acceleration when it is at point A
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