The baseball that Lance hit is traveling 78 m/s. It has a mass of 0.149 kg. What is the baseball's kinetic energy?

"why is graphite used instead of gold or copper wires to conduct electricity in very hot situations such as an industrial kiln? " that's the question, but the thing is, i don't even understand what an "industrial kiln" xd assistance would be < 3

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

The energy of a photon was found to be 3.38 × 10–19 j. planck’s constant is 6.63 × 10–34 j • s. which color of light corresponds to this photon?