If a bus travels 20 km in 30 minutes. what is the average speed of the bus?
a.) 20km/h
b.) 30km/h
c.) 40km/h
d.) 50km/h

The atoms in a sidewalk on a hot summer day are vibrating the atoms in the sidewalk on a freezing day in winter. a. more rapidly than b. more slowly than c. at the same speed as

In science and physics what is the standard unit of measure for speed?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt