How does the matter and energy in a system naturally change over time?

A. It increases in energy.

B. It becomes more spread out.

C. It becomes more efficient.

D. It decreases in entropy.

Calculate the total resistance in a series circuit made up of resistance of 3,4, and 5

Which of the following cools the air in a household refrigerator? A. Absorption of the heat from the air due to evaporation of the liquid refrigerant B. Reduction of the air temperature due to condensation of the gaseous refrigerant C.

Two identical, unlabeled boxes are transported to an orbiting space station. The astronauts know that one box is filled with a light sample of ants for an experiment, and the other is filled with heavy tools for repairs.

Imagine the first Olympic Games conducted on the moon in a specially designed dome. state and explain which sports would produce new records and which would not

To a cyclist riding west at 20 kg/hr, the rain appears to meet him at an angle of 45° with the vertical. When he rides at 12 km/hr, the rain meets him at an angle of 19°48' with the vertical. What is the actual direction of the rain?

Gizmo answer sled wars

3. What is the kinetic energy of a 1300 kg car moving at 26.3 m/s?

Kendall has empty graduated cylinder with markings and an identical graduated cylinder partway filled with water. She also has a balance and a marble. Which statement best describes what Kendall can do? A.

2. With regard to the pH scale, a solution with a pH A. higher than 7 is considered an acid. B. lower than 7 is considered basic. C. of 6 is considered neutral. D. close to 14 is considered a strong base.

If a car rolls gently off a vertical cliff, how long does it take to reach 90km/hr.