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

Which action shows a creative approach to the process of scientific inquiry?

To determine the speed of a wave, you would use which of the following formulas?

When two identical objects traveling at the same speed collide head-on, an observer standing in the earth reference frame sees both objects changing direction?

A railroad freight car of mass 3.34 * 104 kg collides with a stationary caboose car. They couple together, and 19.0% of the initial kinetic energy is transferred to thermal energy, sound, vibrations, and so on. Find the mass of the caboose.

Laura is skydiving when at a certain altitude she opens her parachute and s toward the ground with a constant velocity of 6.50 m/s, straight down. What is Laura's displacement if it takes her 34.0 s to reach the ground?

Which of the advantages to social media as a new media could also be viewed as a disadvantage

At which approximate light intensity does the oxygen production begin to level off? a. 40% b. 60% c. 80% d. 100%

When a light shines through an object it is called

A man goes from his house to office with a speed of 57km/hr and returns to the house with a speed of 83km/hr in his car. Calculate the average speed of the car.

Identify several factors in the environment that can affect physical fitness levels.