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A string is wrapped around a pulley that consists of a disc of mass 2 kg and radius 0.3 m. Hanging from the string is a mass m = 3 kg. What is the acceleration of the mass m?
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In an attempt to skip a rock off the surface of a lake, you throw the rock from a height h=1.67 m above the lake surface with an initial speed of v0 = 6.85 m/s at an angle of θ=12.3° below the horizontal. How long until ...
Question: The problem: Two stationary point charges +3.00nC and +2.00nCare separated by a distance of 50.0cm. An electron is released fromrest at a point midway between the two charges and moves along theline connecting ...
Question: In this problem we will consider a collision of two moving objects such that after the collision, the objects stick together and travel off as a single unit. The collision is therefore completely inelastic. You ...
Question: An outfielder throws a 0.150 kg baseball at a speed of 40.0m/s at an intial angle of 30.0 with respect to the horizontal. a) what is the kinetic energy of the baseball at the highest point of its motion? b) wha ...
Question: A slide projector needs to create a 84 cm high image of a 2.0 cm tall slide. The screen is 240 cm from the slide. Assume that it is a thin lens. (a) What focal length does the lens need? cm (b) How far should y ...
Question: Suppose you wanted to charge an initially uncharged 124 pF capacitor through a 65 Mohm resistor to 90% of its final voltage. How much time (in s) would be required to do this? The response must be typed, single ...
Question: Oppositely charged parallel plates are separated by 5.31 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field between the plates? N/C (b) What is the ma ...
Question: A simple wheel has the form of a solid cylinder of radius r with a mass m uniformly distributed throughout its volume. The wheel is pivoted on a stationary axle through the axis of the cylinder and rotates abou ...
Question: A pendulum has a period of 1.77 s on Earth. Part A: What is its period on Mars, where the acceleration of gravity is about 0.37 that on Earth? Express your answer to two significant figures and include the appr ...
Question: Planets beyond the solar system. On October 15, 2001, a planet was discovered orbiting around the star HD68988. Its orbital distance was measured to be 10.5 million kilometers from the center of the star, and i ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
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