The reaction equation below shows the formation of aluminum oxide. Which set of coefficient balances the equation?

Al+O2? Al2O3

A) 1,1,1

B) 2,3,5

C) 2,4,5

D) 4,3,2

Students in Ms. Bailey's class were studying speed. Four students rolled balls across the floor a distance of 30 cm. Their times are seen here. Put the times in order from fastest to slowest.

True or false? Of all the rocky planets, Mercury is the one humans are most likely to colonize.

An airplane flies with a constant speed of 740 miles per hour how long will it take to travel a distance of 2960 miles

In the first stage of a two-stage rocket, the rocket is fired from the launch pad starting from rest but with a constant acceleration of 3.50m/s² upward. At 25.0 s after launch, the second stage fires for 10.

Law of motion that says for every action there is an equal and opposite

About how much energy is transferred between a producer and primary consumer? A. 90% of the original energy from the Sun is transferred B. 10% of the original energy from the Sun is transferred C. 10% of the plant's energy is transferred D. 0.

If you exert a force of 500 n to walk 4 m up a flight of stairs in 4 s, how much power do you use?

The concepts of a "particle" and a "wave"

If a particle undergoes shm with amplitude 0.10 m, what is the total distance it travels in one period?

If the length of one side of a square is 12.0 m, what is the perimeter of the square?