How far does the rock travel horizontally
A girl throws a rock horizontally, with a velocity of 10 m/s, from a bridge. It falls 20 m to the water below. How far does the rock travel horizontally before striking the water?
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A stone is thrown horizontally with an initial speed of 10 m/s from the edge of a cliff. A stop watch measures the stone's trajectory time from the top of the cliff to the bottom to be 4.3 s. What is the height of the cliff?
A Closed system undergoes a reversible process from 220 K to 440 K with the heat transferred per degree of temperature being given by dQ/dT = 0.45 kJ/K and the work by dW/dT = 0.12 kJ/K.
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In a certain noisy factory, workers are provided with earplugs and are expected to wear them. An industrial hygienist inspecting the plant found that 100 of the 500 workers in the factory were not wearing their earplugs because they regarded them
What is the minimum horizontal force that the student must apply to the textbook to prevent it from falling?
A paper studied various aspects of bus service and presented data on travel times from several different routes. The accompanying frequency distribution is for bus travel times from origin to destination on one particular route in Chicago during p
The reaction between silver nitrate and sodium chloride is found to have heat of reaction of -64 kJ ( Delta H of Rxn= -64 kJ). Write a balanced chemical equation and determine the source of the heat?
The wire temperature is 345 K. The air temperature and pressure are 300k and 1 atm, respectively. Estimate the tunnel air speed.
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