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You are serving as a technical consultant for a locally produced cartoon. In one episode, two criminals, Shifty, and Lefty, have stolen some jewels. Lefty has the jewels when the police start to chase him, and he runs to the top of a 60.0-m tall building in his attempt to escape. Meanwhile, Shift runs to the convenient hot-air balloon 20.0 m from the base of the building and untethers it, so it begins to rise at a constant speed. Lefty tosses the bag of jewels horizontally with speed of 7.3 m/s just as the balloon begins its ascent. What must the velocity of the baloon be for Shifty to easily catch the bag?
a 45.0N block rests on a horizontal table. a horizontal force of 36.0 N is applied to the block. what is the magnitude of the blocks acceleration
A 25 kg bear slides, from rest, 12 m down a lodgepole pine tree, moving with a speed of 5.6 m/s just before hitting the ground. What is the average frictional force that acts on the sliding bear
A 67.0kg skier is moving at 6.70m/s on a frictionless, horizontal snow-covered plateau when she encounters a rough patch 3.55m long. How much internal energy was generated in crossing the rough patch
Nerve proagation in your body occurs when large electric fields in the cell membranes on neurons (1.0*10^7 N/C) cause ions to move through cell walls
You throw a rock vertically upward with an initial speed of 19.9 m/s. How much time does it take for the rock to hit the ground
Suppose that the mass of the dishwater is large as much as necessary so that its temperature does not change appreciably.
A crane lifts a 2000kg load 40 meters. what will be the work done by the load? If it takes 8 seconds to do this work what is the power output for the crane
When viewed in a spherical mirror, the image of a setting sun is a virtual image. The image lies 12 cm behind the mirror. (a) What is the focal length of the mirror
A person running a fever has a temperature of 39.6°C. What is this temperature on the Fahrenheit scale
Two 63 g ice cubes aredropped into 260 g of water in athermally insulated container. If the water is initially at25°C, and the ice comes directly from a freezer at -15°C,what is the final temperature at thermal equilibtrium? (Neglect the heat capa..
A friend of yours is loudly singing a single note at 380Hz while racing toward you at 26.5m/s on a day when the speed of sound is 346m/s. What frequency does your friend hear if you suddenly start singing at 380Hz
a fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. the
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