Ablock initially at rest is allowed to slide down a frictionless ramp and attains a speed v at the bottom. to achieve a speed of 1.8v at the bottom, how many times as high must a new ramp be?

Organelles are 1. responsible for producing power for the cell 2. tiny structures in the cell that carry out the cell's activities 3. responsible for digestion in the cell 4. found outside of the membrane

Carbon 14 is a naturally occurring stable

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.