Is time real

If everything is relative to gravity

How does the transformation of energy takes place in crackers

Where are you most likely to build up enough static charge to receive a shock? A. In a carpeted restaurant in the desert B. On a concrete sidewalk on a dry day O c. Walking through wet grass O D. On the dirt in the jungle room at a botanical garden

A balloon drifts 30 m toward the east in 10 s; then the wind suddenly changes and the balloon flies 50 m toward the west in the next 5 s. What was its displacement during the first 10 s?

A mass of 9 kilograms is lifted through a height of 17 meters. How much work is done during the lifting? (how do we get to the answer as well)

A steel ball with mass 0.347 kg falls onto a hard floor and bounces. Its speed just before hitting the floor is 23.6 m/s and its speed just after bouncing is 12.7 m/s.

An olympic sprinter can go from a state of rest to 11 meters per second in 10 seconds. What is the sprinter's average acceleration?

If a construction worker drops a wrench from the top of a building 375 feet high the wrench will be s (t) = - 16t2 + 375 feet above the ground after t seconds. Determine the velocity of the wrench 4 seonds after it was was dropped.

Astronomical methods that have provided insights about universe

What is an ethical vacuum?

Weight of a man is less at coal mine. Why?