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A point particle of charge +8Q is on the x-axis at a distance d to the left of the origin. Another point particle of charge -2Q is at the origin. Find the distance from the origin on the x-axis between the charges where the electric potential due to the two point charges vanishes.
A sealed cubical container 17cm on a side contains three times Avogadro's number of molecules at a temperature of 16°C. Find out the force exerted by the gas on one of the walls of the container.
Sam, whose mass is 76.0 , takes off down a 52.0 high, 10.0 slope on his jet-powered skis. The skis have a thrust of 200 . Sam's speed at the bottom is 40.0. Illustrate what is the coefficient of kinetic friction of his skis on snow?
A 15m uniform ladder weighing 500 N rests against a frictionless wall. The ladder makes 60 angles with the horizontal.
You place an object with an electrical charge of +0.256 C at a point in space, What is the magnitude and direction of the electric field at that point in space
Calculate the magnitude, the direction of resultant force and the coefficient of kinetic friction.
A certain star is 14 million light-years from Earth. The intensity of the light that reaches Earth from the star is 4.00 x 10-21 W/m2. At what rate does the star radiate EM energy.
Two particles with charges +5e and -5e are initially very far apart (effectively an infinite distance apart). They are then fixed at positions that are 6.78 x 10-13 m apart
A 0.740 m long brass pendulum experiences a 20.0°C temperature increase, Find the ratio of the change in period to the original period, What is the change in the period
A spring has a force constant of 931N/m and an unstretched length of 8 cm. One end is attached to a post that is free to rotate in the center of a smooth table.
In a second training exercise, the centrifuge speeds up from rest with a constant angular acceleration. When the centrifuge reaches an angular speed of 2.50 rad/s.
A small conducting spherical shell with inner radius a and outer radius b is concentric with a larger conducting spherical shell with inner radius c and outer radius d. The inner shell has the total charge of -1q and outer shell has a total charge..
Animals in cold climates often depend on two layers of insulation: a layer of body fat surrounded by a layer of air trapped inside fur or down, What is the thickness of the air layer
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