The distance between two planets is 1.6 x 10^6 m. How much time would the light signal take to go from one planet to the other?
To calculate the time it takes for a light signal to travel a certain distance, we can use the formula:
Time = Distance / Speed
Since we know the distance between the two planets is 1.6 x 10^6 meters, we just need to determine the speed of light to find the time it takes.
The speed of light in a vacuum is approximately 3 x 10^8 meters per second (m/s). Therefore, we now have:
Time = 1.6 x 10^6 m / 3 x 10^8 m/s
To simplify this expression, we can divide both the numerator and denominator by 10^6:
Time = (1.6 / 3) x (10^6 / 10^8) s
The exponent subtraction gives us:
Time = 0.53 x 10^-2 s
Now, 10^-2 is equivalent to dividing by 100. Therefore:
Time ≈ 0.53 / 100 s
Finally, we have:
Time ≈ 0.0053 s
So, approximately 0.0053 seconds would be required for a light signal to travel from one planet to the other.
To find out how much time a light signal would take to travel from one planet to another, we need to divide the distance between the two planets by the speed of light. The speed of light is approximately 3.0 x 10^8 meters per second.
Here's how to calculate it step by step:
Step 1: Convert the distance between the planets to meters. In this case, the distance is already given in meters, so no conversion is needed.
Step 2: Divide the distance by the speed of light.
Distance = 1.6 x 10^6 m
Speed of light = 3.0 x 10^8 m/s
Time = Distance / Speed of light
Time = (1.6 x 10^6 m) / (3.0 x 10^8 m/s)
Step 3: Simplify the expression by dividing the numbers and subtracting the exponents.
Time = (1.6 / 3.0) x (10^6 / 10^8) s
Time = 0.533 x 10^(-2) s
Step 4: Rewrite the result using scientific notation.
Time = 5.33 x 10^(-3) s
Therefore, it would take approximately 5.33 x 10^(-3) seconds for a light signal to travel from one planet to the other.
c = 3*10^8 m/s
1.6 * 10^6 = 3*10^8 * t