Physics, 30.10.2020 23:20 zeckwielen3398
At the beginning of a new school term, a student moves a box of books by attaching a
rope to the box and pulling with a force of F = 96.2 N at an angle of 62, as shown in the figure.
The acceleration of gravity is 9.8 m/s2.
The box of books has a mass of 14 kg and the coefficient of kinetic friction between the
bottom of the box and the floor is 0.35.
What is the acceleration of the box?
Answer in units of m/s².
Answers: 3
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According to social exchange theory, altruistic behaviors benefit the individual who performs them.
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Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?
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Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground.what is his gravitational potential energy above the ground?
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In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_
Answers: 3
At the beginning of a new school term, a student moves a box of books by attaching a
rope to the bo...
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