To calculate the rate at which an object moves you subtract Position A, 5.20 m, from Position B, 102.10 m, and then divide by the time it took to move between positions, 4.81 s. Using the rules presented here, what should the final answer be?

a. 20 m/s
b. 20. m/s
c. 20.1 m/s
d. 20.15 m/s

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

How many molecules are in 6.0 moles of methane

What is true for a substance that releases energy