Physics, 28.04.2021 17:10 vinp190p9zekn
Using this block, a student wants to test a hypothesis that frictional forces are independent of the area of contact between the block and the surface it slides on. Which method is BEST to collect the data needed?
D- Pulling the block across the same surface 10 times, adding a weight on top of the block each time.
A- Pulling the block across 10 different surfaces with the largest side in contact with them.
B- Pulling the block across the same surface with a different side in contact each time.
C- Pulling the block across three different surfaces with a different side in contact with each surface
Answers: 3
Physics, 22.06.2019 19:00, helpmegraduate40
1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)
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Physics, 22.06.2019 22:00, tewilliams1
If anyonee has done the momentum lab practical in physics can you give me the answers i am s lostt rnn : (
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