3. breakdown the practical uses of electromagnets in:
[9 marks]
- circuit breakers
- el...
Physics, 15.02.2021 19:20 jokihahorton510
3. breakdown the practical uses of electromagnets in:
[9 marks]
- circuit breakers
- electric bell
- relay switch in cars.
Answers: 1
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Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.
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Explain why you think this diagram shows what happened to the carbon in the biodome.
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A20 cm long spring is attached to a wall. the spring stretches to a length of 22 cm when you pull on it with a force of 100 n. what is the spring constant
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Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.
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