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Solve the all parts of given question:
Question: A 35 kg block slides down a ramp which is inclined at an angle of 20 degrees up from the horizontal. The block and the ramp have a coefficient of kinetic friction of 0.20. The top of the ramp is 2.8 m above the ground.
Part A: How much energy was lost to friction as the block slide down the ramp?
Part B: What is the final speed of the block when it reaches the bottom of the ramp?
I would really appreciate some help for above question.
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On a workday the average decibel level of a busy street is 71 dB, with 100 cars passing a given point every minute. If the number of cars is reduced to 40 every minute on a weekend
A heat engine operates between a cold reservoir at 10 C and a hot reservoir at 200 C. how much heat must be exhausted as waste
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