If your mass is 68.05 kg, how much gravitational force would you experience on mars?

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

Most short-period comets do not have randomly oriented orbits because