Answer:
The closer a planet is to the Sun, the stronger the Sun's gravitational pull on it, and the faster the planet moves. The farther it is from the Sun, the weaker the Sun's gravitational pull, and the slower it moves in its orbit.
Answer:
meter per second
Explanation:
It could be any other unit such as yard or feet, put it will be whatever measure per second or whatever time.
Examples
feet per second
miles per hour
Answer:
(a)
(b)
Explanation:
Given that , the power of the laser beam is,
and time is given is,
Now the energy formula for the laser beam is,
Now,
(a) The value of energy is given,
Now the no of photons's fraction fluctuation is,
Therefore the no of photons is .
(b)The value of energy is given,
Now the no of photons's fraction fluctuation is,
Therefore the no of photons is.