The sun is 1.40•10^11m away and light travels at 3.00•10^8m/s. Calculate how long it takes light from the sun to reach the earth. Express your answer in scientific notation.

t=s/v= 1.40•10^11/3.00•10^8=4.67 x 10^2 s.

To calculate the time it takes for light to travel from the sun to the earth, we need to use the formula:

Time = Distance / Speed

Given:
Distance from the sun to the earth = 1.40 x 10^11 m
Speed of light = 3.00 x 10^8 m/s

Substituting the values into the formula:
Time = (1.40 x 10^11 m) / (3.00 x 10^8 m/s)

To divide two numbers in scientific notation, divide their coefficients and subtract the exponents:
Time = 4.67 x 10^2 seconds

So, it takes approximately 4.67 x 10^2 seconds for light to travel from the sun to the earth.