The winner of a 10 km road race took half an hour to complete the race. Calculate her average speed. Give your answer in metres per second.

As air molecules move over and under the wings of an airplane, the pressure increases below the wings to create which of the following? A. Lift B. Gravity C. Thrust D. Weight

For acidic solutions, which element is added to balance half-reactions?

In this nuclear reaction equation, oxygen decays to form nitrogen. Which equation correctly describes this decay? o 150 → 19N+ 150 + €→ 15N 150 → 15N+e 150 → 19N+e

Explain how the burning of fossil fuels can cause a disruption to the carbon cycle.

Which factor most likely facilitates mass movement after heavy rains in a dry region? deposition mudflow slump weathering

What does oxidation mean

Which is the correctly balanced chemical equation for the reaction of KOH and H2SO4?

Disintegration is the word geologists use for A. when a rock becomes moist. B. when rock is physically broken into smaller pieces. C. when rock is chemically broken into smaller pieces. D. when rock undergoes a rather large chemical change.

There us no sound in the vacuum of space Why? Answer all that are correct A) sound must travel through something that vibrates B) there is no energy in space C) there is no air to vibrate in the human eardrum

List the six steps of one full cycle of the scientific method post-lab