The SPEED of an object falling from rest in a vacuum varies DIRECTLY to the TIME it has fallen. After an object has fallen 13 seconds its speed is 52 m/sec. What is the speed after it has fallen 18
seconds?

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?