Aracing car whose mass is 1.2 x 10^3 kg is travelling at 8.9 m/s. it stops with a constant deceleration in a distance of 1.8x10^1 m. what force must the brakes apply to the car if the friction in the car’s engine is 1.8 x 10^3 n.

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?

Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)

Which composition of water moves to begin a deepwater current?