Atrain travels 64 kilometers in 4 hours, and then 92 kilometers in 2 hours. what is its average speed?

Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

What effects result when there is an impact between earth and an asteroid? check all that apply. a.massive flooding. b.extinction of many life forms.c.major earthquakes change in average global temperature.d. giant dust cloud