A car travels 60 km in the first 2 hours and 68 km in the next 2 hours.

What is the car's average speed?

How are compounds and mixture alike?

Where does all of this energy come from

A flutist assembles her flute in a room where the speed of sound is 342 m/sm/s. When she plays the note A, it is in perfect tune with a 440 Hz Hz tuning fork.

A conversion factor is a ratio with a value of A: one B: two C: five D: ten

What happens to incoming light rays that are parallel to the principal axis of a convex lens?

Hydroelectric power uses: wind water coal the sun

Two lightweight metal spheres are suspended near each other from insulating threads. One sphere has a net charge; the other sphere has no net charge. The spheres will: A. Attract each other B. Exert no electrostatic force on each other C.

Read the given list of organisms. squirrel, zebra, tortoise, rabbit, horse What best describes the role of these five organisms in a food web?

What are the SI units for specific heat capacity

What are starburst galaxies and what do they have to do with galaxy evolution?