Alex tested a substance that has a pH of 2. Which of the following could alex have tested? A) base B) salt C) water D) acid

What are the uses of oxygen?

A firefighter with a weight of 707 N slides down a vertical pole with an acceleration of 3.04 m/s2, directed downward.

Why isn't pluto considered a planet anymore?

A secret agent is locked in a room. He pushes against the door but cannot open it. Finally, he falls to the floor exhausted. Has he done any work in the door? Why or why not?

How does the strong nuclear force hold the nucleus of an atom together? a) It overcomes the electrical force of attraction between protons in the nucleus. b) It overcomes the electrical force of repulsion between protons in the nucleus.

What is the primary function of the small intestines

A nuclear power plant generates a total of 150mw of power and 45% of this power is wasted heat that is discharged on the cooling water of a river. the river flows at 660.43 gal/s and has an upstream temperature of 64.4 ⁰f.

The universe is believed to have been form from a very dense fireball billions of years ago.

What does the slope of the line on this velocity versus time graph represent? A. positive deceleration B. zero acceleration C. positive acceleration D. negative acceleration

Which of the following objects has the greatest kinetic energy? a baseball flying through the air at 90 miles per hour a baseball flying through the air at 45 miles per hour a baseball flying through the air at 20 miles per hour a baseball sitting