Answer:
1.93 x 10∧3 N
Explanation:
The picture attached shows the calculation
Yeah we always see the same side of the moon because it orbits around earth with that side constantly facing earth, if that's not your question than just comment and i'll try to answer...
Answer: because the ice was cold, and it melted in the tea. So the tea is now cooler.
Explanation:
Answer:
1. In a coal-fired power plant, chemical energy is first converted to thermal energy. TRUE.
The chemical energy in the coal is converted to thermal energy when the coal is burnt to produce steam.
2. In a coal-fired power plant, approximately 2/5 of original energy in the coal is lost to heat. FALSE.
Approximately 3/5 of the original energy is lost not 2/5 so this statement is false.
3. The molecules in cold air move faster than in hot air. FALSE.
Molecules with more heat move faster than molecules with less. Molecules in cold air therefore, will move slower than molecules in hot air.
