Suppose you want to 0.25-kg cup of water from 55 C to 82 C. How much energy would this take? (Remember that the specific heat of water is 4.18 J/g/C.) Please write out your work

If jill was traveling at 300 miles in 4 hours due south what was his velocity in miles per minute a) 75 miles per hour due south b) .02 miles per second due south c) .5 miles per second due south d) 1 mile per hour due south

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic