Superman takes 8 seconds to stop a runway train over a distance of 58 m using a power of 75000W. How much work was done to stop it?

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

You win the lottery and decide to impress your friends by exhibiting a million-dollar cube of gold. at the time, gold is selling for $ 426.60 per troy ounce, and 1.0000 troy ounce equals 31.1035 g. -how tall would your million-dollar cube be? en cm