What could you do to decrease the race car's speed on the next trial? a. increase the friction between the ramp and the wheels b. make the ramp steeper c. neither a nor b d. both a and b page navigation

Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system