Physics, 14.01.2021 03:50, salgadoj6933
Lynn rubs a balloon with a piece of wool, which causes the balloon to pick up some of the electric charges from the wool. Lynn then observes that the balloon temporarily sticks to a wall. After several seconds, the balloon falls to the ground.
Which best describes the forces in this scenario?
O The strong force causes the balloon to stick to the wall, and the weak force causes the balloon to fall to the ground.
O The weak force causes the balloon to stick to the wall, and the strong force causes the balloon to fall to the ground.
O The electromagnetic force causes the balloon to stick to the wall, and gravitational force causes the balloon to fall to the ground.
O Gravitational force causes the balloon to stick to the wall, and electromagnetic force causes the balloon to fall to the ground.
Answers: 3
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6–55 refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 358c at a rate of 0.018 kg/s and leaves at 800 kpa as a saturated liquid. if the compressor consumes 1.2 kw of power, determine (a) the cop of the heat pump and (b) the rate of heat absorption from the outside air.
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The heliocentric and the geocentric models of the solar system included these central principles
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Lynn rubs a balloon with a piece of wool, which causes the balloon to pick up some of the electric c...
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