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At the end of a factory production line, boxes start from rest and slide down a 35o ramp 4.8 m long. If the slide is to take no more than 2.1 s, what is the maximum coefficient of friction between the slide and the box?
Calculate the eccentricity, e, of a planet's orbit around a central star if the ratio of its gravitational potential energies at the aphelion and at the perihelion is ? = 0.175
If a projectile is launched vertically from the Earth with a speed equal to the escape speed, how far from the Earth's center is it
A 100 kg man is three fourths of the way up a 10 m ladder that is resting against a smooth frictionless wall. What is the normal force of the wall on the ladder
A 150g copper bowl contains 220 g of water, both at 20.0degrees C. A very hot 300g copper cylinder is dropped intothe water, What is the original temperature of the cylinder
A railroad car of mass 2.3 104 kg moving at 2.50 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
A 2.0 kg ball is attached to a vertical post with two strings, one 2 m long and the other 1 m long. If the ball is set whirling in a horizantal circle, find the tension on each string
Describe why conduction band electrons are typically found at the bottom of the conduction band whereas holes are found at the top of the valence band.
Using a 683-nm wavelength laser, you form the diffraction pattern of a 0.113-mm wide slit on a screen. How far is the screen located from the slit
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 22 m/s at an angle 63 degrees, What is the horizontal and vertical component of the balls
The velocity of light in glass is 2*10^8 m/s and in air is 3*10^8 m/s. How much would be an ink dot to be raised, when covered by a glass plate of 6cm thick
Suppose you take a 2.0×102? resistor and a 0.40H inductor and make a series circuit with a voltage source that has voltage amplitude 30V, What is the current amplitude
A canoeist attempts to paddle a canoe due east, directly across a river. Unfortunately there is a current, flowing south at a rate of 3.4 m/s. How far can the canoeist paddle in still water
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