Answer:
C. Potential energy is related to an object's position, and kinetic
Explanation:
The energy contained in the small motions of the object's molecules can be broken up into a combination of microscopic kinetic energy and potential energy.
Answer:
Explanation:
Force - frictional Force = m * a
20N - 5N = 5 * a
15N = 5*a
15N / 5 = a
a = 3 m/s^2
You should note a couple of things.
1. The frictional Force always opposes the direction of motion. In this case it is minus and the 20 N is plus. It makes the acceleration less. If the friction force was not there then 20 N = m * a
20N = 5 kg * a
a = 20/5
a = 4 m/s^2.
Answer:
v = 0.999981c m/s
Explanation:
Using the time dilation equation

T = stationary time = 100 years
T₀ = 11/12 years = 0.917 years
v = speed of travel in the space = ?
c = speed of light = 3 * 10⁸ m/s


v = 299987395.57 m/s
v = 2.99 * 10⁸ m/s
v = 0.999981c m/s
It's short for magnetic levitation technology; it uses the opposite attraction of magnets to keep something in the air; e.g. a train with magnets on the bottom facing south and the tracks that also have south facing magnets.