The human body is 65% oxygen by mass. If a person has a mass of 75.0 kg, what is the mass oxygen in his body?

Which of the following laws best define this statement? The total amount of energy in a closed system stays the same OA) Kepler's law OB) Avogadro's law OC) The law of negative energy D) The law of conservation of energy

A coin is dropped from the top of a tall building. determine the coin's (a) velocity and (b) displacement after 1.5 sec.

A small pool filled only with water will require an additional 300 gallons of water in order to be filled to 80% of its capacity.

You want to place a mirror at a blind turn on the staircase in your house. Which would be best suited for this purpose? a. flat mirror b. plane mirror c. convex mirror d. concave mirror

A spherical drop of water carrying a charge of 30 pC has a potential of 500 V at its surface (with V 0 at infinity).

jason hits a baseball off a tee toward right field. the ball has a horizontal velocity of 10 m/s and lands 5 meters from the tee. what is the height of the tee? show your work, including formula (s) and units.

What is the average amount of energy of motion in the particles of a substance

A race car is traveling at 76 m/s when it slows down at 9 m/s^2 for 4 seconds. What is his new velocity

Humpty Dumpty (12 kg) sat on a wall (2 m high). What was his potential energy, before his great fall? A. 235.2 J B. 235.2 N C. 24 J D. 246.1 W

Explain how we were able to boil water at room temperature