For efficiency the top one is 50% and the bottom one is 72%
Answer:
air is the answer to the question
Answer:
Explanation:
As given, the student has three balloons and rubs two of them on a piece of wool. The rubbing of balloon on wool is the independent variable as it was done on two and not on the third as control.
Answer:
2.2 x 10-19
Explanation:
Kinetic Energy = 1/2 m v ^2