Although you cannot see it, the lights in a room flicker on and off several times a second. The flickering results from the electricity changing direction
rapidly, causing the lights to brighten and dim repeatedly. This cycle occurs
once every 0.0166 s. Express this time interval in scientific notation.

Answer ( b )/furthest from the end prying out the nail

Ican’t exactly answer this, but i can try to give a bit more info here.
astronomers are able to calculate a star’s life expectancy depending on its mass. (a larger star burns more gas, therefore having a shorter life span).
so astronomers can definitely predict the death of stars and the times they will die.
i hope this was in some way : )

Projectile motion is a form of motion experienced by an object or projectile that is thrown near the earth's surface and moves along a curve path under the action of gravity.