A crane raises a crate with a mass of 150 kg to a height of 20 m. Given that the acceleration due to gravity is 9.8 m/s2, what is the crate's potential energy
at this point?

Which is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly

Which branches of natural science include the study of an organism that lived 10 million years ago

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?