Which equation is balanced?

H2 + O2 + H2O + O2

H2 + O2 + H2O

2H2 + O2 + 2H2O

4H2 + O2 + H2O + O

What are the cells in your body

Three children are riding on the edge of a merry‑go‑round that has a mass of 105 kg and a radius of 1.40 m. The merry‑go‑round is spinning at 20.0 rpm. The children have masses of 22.0, 28.0, n 33.0 kg. If the 28.

Two steamrollers begin 105 m apart and head toward each other, each at a constant speed of 1.30 m/s. At the same instant, a fly that travels at a constant speed of 2.

Which of the following is an example of homeostasis? O A. If you are sleepy, you can drink coffee to stay awake. O B. When you drink a lot of water, you urinate (pee) more than usual O C.

when a volcanic eruption adds new rock to existing land and forms new islands it is considered destructive true false

A tow truck pulls a 500 kg car so that the car accelerates 2 m/s2. What is the net force on the car? 250 N 498 N 1000 N 502 N

Which force keeps you near earths surface?

Name one process that requires a force in the human body.

Which describes the electric forces inside an atom

Why can radio telescopes be used 24 hours a day?