A shell fired into the air explodes into two equal fragments. Which of the following is conserved.

a. Kinetic energy

b. potential energy

c. momentum

d. impulse

Two students below described a part of Earth's innermost layer: Daniel: Densest part Joshua: Has highest temperature and pressure Which part of the innermost layer did Daniel and Joshua describe? A. They both described the outer part. B.

How many organ systems are found in the human body? a. 4. c. 11. b. 5. d. 15.

A system has three macrostates. Macrostates 1 and 3 are least likely and have one basic state each. Macrostate 2 is the equilibrium state and is three times more likely to occur than either of the other two macrostates.

Air is warmer and less dense than surrounding air at the equator because the equator receives more? A: Wind B: Air pressure C: Solar energy D: Greenhouse gases

What is the downward pull on an object due to gravity? mass weight acceleration velocity

Exoplanets (planets outside our solar system) are an active area of modern research. Suppose you read an article stating that there is a newly discovered planetary system with three planets.

A car with a mass 1200 kg accelerates at 1.89 m/s2. What is the total force exerted by the car on the road (answer in N to two decimal places) ?

How Long will it take a plane flying north from Miami to reach New York City 1800 km away if the average velocity of the plane is 940 km/h

If vector A = 5.5N NE and vector B = 10m N 30° W, what is the vector product of A*B

Which is the best desciption of a molecule?