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A boat is tied to a dock by four ropes. Two ropes, with a tension of 55 N each, are at right angles to the dock. The two other ropes, with a tension of 60 N each, both make an angle of 27° with respect to the dock. What is the magnitude of the sum of these forces?
Three electrons are located at the vertices of an equilateral triangle, one at each vertex. What is the magnitude of the initial acceleration of each electron
You take the elevator to the roof of midtown skyscraper that is 100 meters high. What was the velocity of your souvenir just before it hit the ground
In the circuit shown in the figure, the capacitors are all initially uncharged and the battery has no appreciable internal resistance. find the maximum potential difference across each capacitor
A basketball leaves a player's hands at a height of 2.20m above the floor. what is the range of initial speeds allowed to make the basket
A bolt comes loose from underneath an elevator that is moving upward at a speed of 6.9 m/s. What is the speed of the bolt when it hits the bottom of the shaft
An alpha particle is a helium nucleus and therefore consists of two protons and two neutrons. How much time passes before the alpha particle comes to rest
You have a great summer job working in a cancer research laboratory. Your team is trying to construct a gas laser that will give off light of an energy that will pass by the skin but be absorbed by cancer tissue.
q1. a 48-m length of wire is stretched horizontally between two vertical posts. the wire carries a current of 64 a and
A man ties one end of a strong rope 8.20 m long to the bumper of his truck, 0.621 m from the ground, Compute the magnitude of the torque on the tree
Compute the final temperature using the ideal gas law and van der Waals equations of state. Assume that Cvm = 3/2 R and the van der waals parameters for Argon are a = 1.355 dm6bar/mol2 and b = 0.0320 dm3/mol.
Find out the shear strain that results if a force of magnitude 5.00×105 is applied to the top square face of the plate, parallel to the side, and a force of equal magnitude is applied in the opposite direction to the bottom face of the plate as s..
A ball is thrown straight upward with an initial speed of 25 m/s. how high does the ball go before falling back down
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