Use the fact that the speed of light in a vacuum is about 3.00 108 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 4.9 hour(s)

Have you heard of the D = V*t formula?

Make sure V is in km/s and t is in seconds

To determine the distance traveled by a pulse from a laser beam in 4.9 hours, we can use the equation:

Distance = Speed × Time

First, we need to convert the speed of light from meters per second to kilometers per second. Since there are 1000 meters in a kilometer, we can divide the speed of light in meters per second by 1000 to get the speed of light in kilometers per second:

Speed of light in kilometers per second = Speed of light in meters per second / 1000

Speed of light in kilometers per second = 3.00 × 10^8 m/s ÷ 1000 = 3.00 × 10^5 km/s

Now, we can multiply the speed of light in kilometers per second by the given time of 4.9 hours to calculate the distance traveled:

Distance = Speed × Time
Distance = 3.00 × 10^5 km/s × 4.9 hours

To simplify the calculation, we need to convert hours to seconds. Since there are 60 minutes in an hour and 60 seconds in a minute, we can multiply the given time by 60 × 60:

Time in seconds = 4.9 hours × 60 minutes/hour × 60 seconds/minute

Time in seconds = 4.9 × 60 × 60 seconds = 17,640 seconds

Now we can plug in the values:

Distance = 3.00 × 10^5 km/s × 17,640 seconds

Multiplying these numbers together will give us the answer.