If the mass and radius of Mars to Earth are 11% and 53% respectively, calculate the ratio of the escape velocity of Earth divided by that of Mars.

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

In science and physics what is the standard unit of measure for speed?

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight