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A sledge loaded with bricks has a total mass of 18.4 kg and is pulled at constant speed by a rope inclined at 19.2° above the horizontal. The sledge moves a distance of 20.5 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.500. What is the mechanical energy lost due to friction?
q1. a discussion of why the ideal gas law is expected to fail at low temperatures and how its failure may affect your
A viewing window on the side of a large tank at a public aquarium measures 32 in. by 37 in. The average gauge pressure from the water is 6 psi
The magnetic field of an electromagnetic wave is given by: B = 6.90 102 sin( 5.50 106 ( x - 3.0 108t )) where everything is in SI units. What is the amplitude of the electric field
Three equal point charges, each with charge 1.70 μC, are placed at the vertices of an equilateral triangle whose sides are of length 0.700 m. What is the electric potential energy, U, of the system
carries a 10 A current with a uniform current density. Use Ampere's Law to determine the magnetic field strength at the axis of the wire
The skis have a thrust of 190 . Sam's speed at the bottom is 35.0 . Illustrate what is the coefficient of kinetic friction of his skis on snow?
How much work is required to stretch the spring. A satellite is in a low circular orbit about the Eart.
When a hammer strikes a nail, it is compressed along its length. What average force was exerted on the nail by the hammer
An intergalactic rock star bangs his drum every 1.50 s. A person on earth measures that the time between beats is 2.30 s. How fast is the rock star moving relative to the earth
An ac generator with a frequency of 30.0 Hz and an rms voltage of 12.0 V is connected to a 45.5-µF capacitor, What is the maximum current in this circuit
A 4.15 volt battery is connected across a parallel plate capacitor. Find the speed of the electrons when they reach the positive plate
A point charge is outside of a spherical surface and no charge is enclosed by that surface, What is the flux through the entire closed surface
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