In the summer months, wires have a greater than in colder months.

Ahot-air balloon is drifting straight downward with a constant speed of 2.40 m/s. when the balloon is 7.63 m above the ground, the balloonist decides to drop one of the ballast sandbags to the ground below. how much time elapses before the sandbag hits the ground?

This is the substance(s) formed in a chemical reaction.

What is the rate of change in a objects position?