In a distance-time graph, what is a formula for the slope of the curve line? Distance = d, time = t. A. slope = t
B. slope = d/t
C. slope = td
D. slope = t/d

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.

Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply