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Physics, 22.06.2019 11:00
If a simple machine reduces the strength of a force, what must be increased?
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Physics, 23.06.2019 00:30
Which of the following is a true statement about the acceleration ~a of the pendulum bob ~a is equal to the acceleration due to gravity. ~a is perpendicular to the bobโs trajectory. ~a is equal to the instantaneous rate of change in velocity. ~a is tangent to the bobโs trajectory.
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Physics, 23.06.2019 02:50
You are your friend move a new refrigerator into his kitchen. you apply a horizontal force of 252 n in the negative x direction to try and move the 56 kg refrigerator. the coefficient of static friction is 0.61. (a) how much static frictional force does the floor exert on the refrigerator? give both magnitude (in n) and direction. magnitude n direction (b) what maximum force (in n) do you need to apply before the refrigerator starts to move?
Answers: 1
A teacher is performing a demonstration about static electricity for his class by rubbing a balloon...
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