An object is falling down a ramp. It reaches the bottom with a speed of Vbottom. How does Vbottom change if you double the mass? How does it change if you double the height of the ramp? What if you performed this experiment on the moon?

Solve for r in the formula v = ir, when i = 5 and v = 15.

The meseta in spain is a a. navigable river b. castle c. coastal plain d.plateau

Which statement about portugal is not true? a. it granted independence to its last colony in 1975 b. it has avoided conflict with spain c. it was a leader in european world exploration in the 1400s d. its economy is changing from agricultural to industrial b. it has avoided conflict with spain