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An empty crate slides down a ramp, starting with a speed v0 and reaching the bottom with a speed v and kinetic energy K. Some books are placed in the crate, so the total mass is tripled. The coefficient of kinetic friction is constant, and air resistance is negligible. Starting again with v0 at the top of the ramp, what are the speed and kinetic energy at the bottom? (Use any variable or symbol stated above as necessary.)
A small block of mass m = 1.5 kg slides, without friction, along the loop-the-loop track shown. the block starts from the point P a distance h = 54 m above the bottom of the loop of radius R = 17.0 m. What is the kinetic energy of the mass at the ..
Ignore the force of gravity.
Out of a gamma, beta, and an alpha source, what would be the best way to minimize radiation exposure given the following? Which one would you place in your mouth?
A small metal particle passes downward through a fluid medium while being subjected to the attraction of a magnetic field such that its position is observed to be s = (15t3 - 3t) mm, where t is measured in seconds. Determine (a) the particle's dis..
a positron is a particle with the same mass and magnitude charge as an electron but a positron has a positive charge.
The polarizing direction of the first sheet is parallel to the x axis, that of the second sheet is at an angle of 30 degree counter-clockwise from the y axis, and that of the initial third sheet is at an angle of 60 degree counter-clockwise from t..
A 54.0-kilogram child starts from rest from the top of a frictionless slide that is 4.6 m. tall. The bottom of the slide is 22.8 cm above the ground. What is the child's speed at the bottom of the slide?
A current of 15.5 Amp flows through an electric heater operating on 120 Volt. Determine the power consumption of electric heater
A 10.60 weather rocket generates a thrust of 220. The rocket, pointing upward, is clamped to the top of the vertical spring. The bottom of the spring, whose spring constant is 450, is anchored to the ground.
Suppose the distribution of serum cholesterol values in undergraduate men is approximately normally distributed with mean μ = 190 mg/dl and standard deviation σ = 40 mg/dl.a) What is the probability of selecting someone at random from this population..
At some automobile toll-collecting stations, a thin metal wire sticks up from the road and makes contact with cars before they reach the toll collector. What is the purpose of this wire?
Ultraviolet light is incident normally on the surface of a certain substance. The binding energy of the electrons in this substance is 3.44 eV. How many electrons are emitted from a square centimeter of the surface each second
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