An element is a pure substance that cant be broken down into simpler substances by chemical or physical means. hope it helps :)
Answer:
<u>The</u><u> </u><u>best</u><u> </u><u>thermal</u><u> </u><u>insulators</u><u> </u><u>have</u><u> </u><u>free</u><u> </u><u>electrons</u>
Answer:
With sonar, what happens to sound pulses from a ship after they hit the ocean floor? ... They bounce back to the ship.
Explanation:
<span>A motor produces less mechanical energy than the energy it uses because the motor looses some energy to heat.</span>