What unit is used to measure energy?

Which one of the following temperatures is equal to 5°C?

The chains and sheets of galaxies and voids between them observed in the large-scale structure of the universe were once thought to be inconsistent with the Big Bang theory.

A rolling ball moves from x1 = 3.4 cm to x2 = - 4.2 cm during the time from t1 = 3.2 s to t2 = 6.1 s. what is its average velocity?

Geothermal energy is derived from burning organic material such as wood, alcohol, and garbage true or false

If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 477J of energy to the room?

A motorist driving at 25 meters/second decelerates to 15 meters/second. The combined mass of the vehicle and the driver is 1.5 * 10³ kilograms. What is the amount of mechanical work done by the vehicle?

All forces are different each exerts a particular type of effect on an object

Witch statement about polymers is true

Two bullets have masses of 3,0 g and 6.0g, respectively. both are fired with a speed of 40.0 m/s. Which bullet has more kinetic energy? What is the ratio of their kinetic energies

What does it mean that a form of energy might take more energy to harness than it provides? Are renewable resources always renewable, or can they become non-renewable? Why aren't renewable resources used for everything that we use energy for?