Suppose a runner completes one lap around a 400-m track in a time of 50 s. Calculate the average speed of the runner.

Which articulations allow for greatest range of motion?

All of the following equations are statements of the ideal gas law except

Identify the type of chemical reaction that is described. *neutralization *combustion *synthesis *decomposition Pairs- Water breaks down into hydrogen and oxygen. Leaves make starch using chlorophyll and carbon dioxide.

What is a sentence for refraction

Describe five things that you do to make yourself feel warmer or cooler.

At the beach, describe where or when you would see wave fronts. How are wave fronts useful to surfers?

How would the moon appear from earth if the moon did not rotate?

Block B has mass 4.00 kg and sits at rest on a horizontal, frictionless surface. Block A has mass 2.00 kg and sits at rest on top of block B. The coefficient of static friction between the two blocks is 0.400.

T=2π√ (l/g) is dimensionally correct

A penny falls from a windowsill which is 25.0 m above the sidewalk. How much time does a passerby on the sidewalk below have to move out of the way before the penny hits the ground?