Answer:
400 cm³
Explanation:
Let p₁ Pa be the original pressure of the gas
p₂ Pa be the new pressure of the gas
V₁ m³ be the original volume of the gas
V₂ m³ be the new volume of the gas
According to Boyle's Law,
p₁V₁ = p₂V₂
p₁ × 0.0002 = 1/2 p₁ × V₂
0.0002 = 1/2 × V₂
V₂ = 0.0004
∴ The new volume of the gas = 0.0004 m³ = 400 cm³
Answer:
B
Explanation:
Asteroid - A rock that rvolves arounf the sun / star.
Moon - A natural satillite that revolves around earth/ planet.
1 Some kind of light is emitted for each element when it is moved from higher energy level to lower energy level
2 Also some of energy is absorbed which is being used to move electrons from high energy level to lower energy level
Answer:
Physical changes.
Explanation:
Any physical changes can be related to boiling. Freezing water, tearing paper, anything physical that changes and objects apperance is a physical change.
Stellar nebula, star, red giant, planetary nebula and then a white dwarf.