One day is 86,400 seconds. Express this number in scientific notation and estimate how far the sun's light travels i a day.

To express a number in scientific notation, we write it as a coefficient multiplied by a power of 10.

The given number of seconds per day, 86,400, can be expressed as 8.64 × 10^4.

Now, to estimate how far the sun's light travels in a day, we need to consider the speed of light. The speed of light in a vacuum is approximately 299,792 kilometers per second, or 2.99792 × 10^5 kilometers per second in scientific notation.

To calculate the distance traveled by light in a day, we multiply the speed of light by the number of seconds in a day:

Distance = Speed of light × Time
Distance = (2.99792 × 10^5 km/s) × (8.64 × 10^4 s)

To simplify this calculation, we can perform the multiplication of the coefficients and add the exponents:

Distance ≈ (2.99792 × 8.64) × 10^(5+4) km
Distance ≈ 25.9296 × 10^9 km
Distance ≈ 2.59296 × 10^10 km

Therefore, the estimated distance traveled by the sun's light in a day is approximately 2.59296 × 10^10 kilometers.

8.64 * 10^4

186,000 miles/second = speed of light

Convert seconds into minutes, then hours, then days.

One day is 86,400 seconds.Express this number in scientific notation and estimate how far the sun's light travels in a day

60 1440

The answer is 8.64 times 10^2