Calculate the acceleration of the crate
A 225-kg crate is pushed horizontally with a force of 685 N. If the coefficient of friction is 0.20, calculate the acceleration of the crate.
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Often school attempts to connect with families fail. One reason is that schools assume the role of "educator" and expect families to go out of their way to learn how they can help modify family patterns to best suit the school environment.
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A bat emits a sound whose frequency is 96 kHz. The speed of sound in air at 20.0° C is 343 m/s. However, the air temperature is 35° C, so the speed of sound is not 343 m/s. Assume that air behaves like an ideal gas, and find the wavelength
The water flows through a 3-inch inside diameter tube at 40 lb/second. Starting with the general energy balance. Determine the power that is required by the pump in hp?
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A 51.0kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 250N . For the first 10.5m the floor is frictionless, and for the next 10.5m the coefficient of friction is 0.18. What is the final speed of the crate
A whistle of frequency 650 Hz moves in a circle of radius 69.0 cm at an angular speed of 12.0 rad/s. Use 343 m/s for the speed of sound in air. What are the lowest and the highest frequencies heard by a listener a long distance away, at rest with
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A 2016 survey of undergraduate students considered this further and found that compared with students that did not use cannabis at least once
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