Answer:
Three quarters of the members of a club are juniors, the rest are seniors. Express this as a ratio of juniors:seniors.
4.6 Joules
Explanation:
K=1/2*MV^2
1/2 * 2.1kg * 2.1^2m/s
==4.6305 Joules
simplified to 4.6 Joules
False
Light comes in different colors like radio, ultra violet, gamma-ray, etc, and they are invisible to the bare eye
