GIVING BRAINLEST TO WHOEVER GETS THE RIGHT ANSWER!! Plz and thx The type of energy that happens in a system and sometimes refers to a machine moving or moving an object is called energy

1. Sound

2.Mechanical

3.radiant

4.nuclear

What shape would a molecule with two bound groups and two lone pairs have?

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.