Physics, 07.04.2020 02:56 notseansafe
A beam of protons is moving toward a target in a particle accelerator. This beam constitutes a current whose value is. (a) How many protons strike the target in 12 seconds? (b) Each proton has a kinetic energy of J. Suppose the target is a 18-gram block of metal whose specific heat capacity is , and all the kinetic energy of the protons goes into heating it up. What is the change in temperature of the block at the end of s?
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An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)
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