Physics, 27.07.2019 04:00 christianlover20
Ellen needs to move a heavy box across the floor and then place it on a shelf that is four feet above the floor. which use of machines would most likely require the least amount of force in order to get the box on the shelf? a. sliding the box up an inclined plane to the shelf b. rolling the box up an inclined plane on a cart c. sliding the box across the floor and then lifting it using a pulley d. rolling the box across the floor in a cart and then using a pulley
Answers: 2
Physics, 22.06.2019 06:30
Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.
Answers: 2
Physics, 23.06.2019 02:40
When doing scientific research ,the sources used should be ?
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Which of the following is a transformer used for? alternate a voltage produce a voltage increase or decrease a voltage eliminate a voltage
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Physics, 23.06.2019 10:10
Acircuit is built based on this circuit diagram what is the equivalent resistance of the circuit? a.0.61 b.1.6 c.7.5 d.18
Answers: 3
Ellen needs to move a heavy box across the floor and then place it on a shelf that is four feet abov...
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