A child pulls a sled up a snow covered hill. The child does 405 J of work on the sled. If the child walks 15m up the hill, how large of a force must the child exert?

If you are riding a roller coaster, how do you think your speed is related to your kinetic energy? Your potential energy?

Typical fears in children include the fear of A. failure. B. heights. C. jumping. D. the dark.

Which of the following units is equal to 1 J/s? 1 Newton 1 Watt 1 Meter 1 Yard

What are the SI units for acceleration? a. m/s b. m/s/s c. N d. kg

What is the speed of a car that traveled 500 meter in 20 seconds?

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?