Help!! I would greatly appreciate help with this question. Consider a pulse of laser light aimed at the Moon that bounces back to Earth. The distance between Earth and the Moon is 3.84 * 108 m. Show that the round-trip time for the light is 2.56s.
To find the round-trip time for the light pulse, we need to calculate the time it takes for the light to reach the Moon and then return to Earth.
First, we can calculate the time it takes for the light to reach the Moon. We know the speed of light is approximately 3.00 × 10^8 m/s. Thus, using the formula:
time = distance / speed
we can calculate:
time = (3.84 × 10^8 m) / (3.00 × 10^8 m/s)
time = 1.28 s
So, the time it takes for the light to reach the Moon is 1.28 seconds.
Next, we need to calculate the time for the light to return from the Moon to Earth. Since the distance traveled is the same, the time it takes for the light to return will also be 1.28 seconds.
To find the total round-trip time, we add the time for the light to reach the Moon and the time for it to return:
round-trip time = 1.28 s + 1.28 s
round-trip time = 2.56 s
Therefore, the round-trip time for the light pulse is 2.56 seconds.
To calculate the round-trip time for the light pulse, we need to take into account the speed of light. The speed of light in a vacuum is approximately 3.00 × 10^8 m/s.
The round-trip time is the time it takes for the light pulse to travel from Earth to the Moon and back.
First, let's find the time it takes for the light pulse to travel from Earth to the Moon.
Distance = Speed × Time
3.84 × 10^8 m = (3.00 × 10^8 m/s) × Time
Dividing both sides by 3.00 × 10^8 m/s gives:
Time = (3.84 × 10^8 m) / (3.00 × 10^8 m/s)
Simplifying, we find:
Time = 1.28 s
This is the time it takes for the light pulse to travel from Earth to the Moon.
To find the round-trip time, we multiply this by 2:
Round-trip Time = 1.28 s × 2 = 2.56 s
Therefore, the round-trip time for the light pulse is 2.56 seconds.
d = V*T
d = 2 * 3.84*10^8 m.
V = 3*10^8 m/s. = Speed of light.
Solve for T.