Answer:
frequency of a wave can be measured by the number of crests in a second or more
Faster-than-light <span>communication and travel refer to the propagation of information or matter faster than the </span>speed<span> of light.</span>
Answer:
29274.93096 m/s
Explanation:
= Distance at perihelion =
= Distance at aphelion =
= Velocity at perihelion =
= Velocity at aphelion
m = Mass of the Earth = 5.98 × 10²⁴ kg
M = Mass of Sun =
Here, the angular momentum is conserved
Earth's orbital speed at aphelion is 29274.93096 m/s
Kinetic energy is given by
Kinetic energy at perihelion is
Potential energy is given by
Potential energy at perihelion is
Kinetic energy at aphelion is
Potential energy is given by
Potential energy at aphelion is
Answer:
A
Explanation:
If you do B, the wagon slows down due to friction
If you do C, it would slow down the wagon by half
If you do D, it would slow it down, due to there being more weight but same force.