Do all rocks stay the same throughout their life time

Which of the following situations would cause the greatest increase in the motion of molecules in a system? A. The system absorbs 100 J of heat and has 100 J of work done to it. B. The system absorbs 100 J of heat and does 100 J of work. C.

You input 75 J of work with a wedge. If the wedge does 65 J of useful work, what if the efficiency of the wedge?

Why are some appliances called vampires

A rocket for a space shuttle is producing a constant acceleration of 2.15 m/s2. What is its velocity 94.0 seconds after the rocket begins to fire?

Five basket ball teams are playing in a tournament. The teams will play with each other only one time. How many games will be play by the end of the tournament?

Describe the adaptive (evolutionary) significance of organizing genes into chromosomes. i. allows for genetic variation in the processes of crossing over and independent assortmentii.

Explain how "elastic potential energy" dramatically changed the sport of pole vaulting when flexible fiberglass poles replaced stiffer wooden poles.

Which, if any, of the three types of galaxies occur the most often?

Which kingdom consists only of complex multicellular, eukaryotic organisms which must consume or ingest other organisms for nutrition?

Why does heat energy always move from a higher temperature to a lower temperature?