A roller coaster has a mass of 425 kg. It sits at the top of a hill with height 66 m. If it drops from this hill, how fast is it going when it reaches the bottom? (Assume there is no air resistance or friction.)

If a windbreak can reduce the speed of wind for distances up to 30 times the height of the trees, how far would these trees reduce the wind speed? 47 m 51 m 470 m 510 m

What are examples or centripetal acceleration?

Gizmo answer sled wars

In March 2010, a New Jersey man's face was badly burned after leaning over his sizzling hot plate of fajitas from Applebee's restaurant to pray. He sued Applebee's for his injuries.

List three observations that show how light carries energy.

Will you die if you eat wax?

Which method is used to calculate the slope on a distance time graph

Lexy throws a dart with an initial velocity of 25m/a at an angle of 60 degrees relative to the ground. What is the approximate vertical component of the i ritual velocity?

True or false electronic machines with no moving parts experience friction and get hot because electricity is moving through the wires

I'm having trouble figuring out how to study for my science test, it's based off of everything we've learned but I'm afraid there's some things I misunderstood during the year that will effect me on the test, and suggestions?!!