A bullet with a mass mb=11.5 g is fired into a block of wood at velocity vb=265 m/s. The block is attached to a spring that has a spring constant k of 205 N/m. The block and bullet continue to move, compressing the spring by 35.0 cm before the whole system momentarily comes to a stop. Assuming that the surface on which the block is resting is frictionless, determine the mass of the wooden block.
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Physics, 22.06.2019 13:40
An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.
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Physics, 22.06.2019 23:00
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Physics, 23.06.2019 01:30
If the pressure in a gas is doubled while its volume is held constant. true or false
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A bullet with a mass mb=11.5 g is fired into a block of wood at velocity vb=265 m/s. The block is at...
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