Decreases, stays the same, increases.
The volume decreases because as air is cooled, the individual molecules collectively possess less kinetic energy and the distances between them decrease, thus leading to a decrease in the volume they occupy at a certain pressure (please note that my answer only holds under constant pressure; air, as a gas, doesn't actually have a definite volume).
The mass stays the same because physical processes do not create or destroy matter. The law of conservation of mass is obeyed. You're only cooling the air, not adding more air molecules.
The density decreases because as the volume decreases and mass stays the same, you have the same mass occupying a smaller volume. Density is mass divided by volume, so as mass is held constant and volume decreases, density increases.
Answer:https://www.khanacademy.org/science/high-school-physics/electric-charge-and-electric-force/coulombs-law-and-electric-force/v/coulombs-law
Explanation: Here is a link to a video that might help you
Explanation:
When spring is used to shoot an arrow, the Elastic Potential Energy is converted into Kinetic Energy.
The efficiency of Spring Toy = 69%
<u>According to Conservation of Energy</u> :
P. E. = K. E.
NOW,
69% of P. E. = m * v^2 / 2
Answer:A
Explanation:
Electric force intensity=electric charge x electric field intensity
From the formula it shows that electric force intensity is directly related to electric charge
If you start at 100% and divide it by 2 it will equal 50% then divide by 2 again and the answer will be 25%. Your answer should be 25%
