A roller coaster car starts down a slope, its speed is 2 m/s. But 5 seconds later, at the bottom, its speed is 37 m/s. What is its average acceleration?

Which position represents spring in the southern hemisphere? a) b) c) d)

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?