11. How fast will a pebble be traveling 3 seconds after being dropped? (g = 9.8 m/s2) A.-9.8 m/s
B.29.4 m/s
C.9.8 m/s2
D.29.4 m/s

22. the effect of threshold braking is to a cause skids. b. lock wheels. c. prevent locking of wheels. d. increase stopping distance.

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.

An object in mechanical equilibrium is an object