Physics, 31.10.2021 09:50 yungkxng57
Read each scenario and then answer the question.
Scenario A: A ramp is used to lift a refrigerator a height of 12 m with a force of 110 N. The ramp is at an angle of 50° to the ground.
Scenario B: A ramp is used to lift a refrigerator a height of 13 m with a force of 120 N. The ramp is at an angle of 22° to the ground.
Scenario C: A ramp is used to lift a refrigerator a height of 14 m with a force of 93 N. The ramp is at an angle of 34° to the ground.
Which scenario requires the most work?
Answers: 3
Physics, 21.06.2019 15:50
The metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off. this simple process iswhich kind of a change? a.a physical changeb. a chemical changec. a nuclear changed. an ionic change
Answers: 1
Physics, 22.06.2019 12:10
Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.
Answers: 1
Physics, 22.06.2019 16:30
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?
Answers: 1
Read each scenario and then answer the question.
Scenario A: A ramp is used to lift a refrigerator...
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