Use the fact that the speed of light in a vacuum is about 3.00 x 10^8 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 1.7 hour(s).
i converted 1.7 hours to secs but im stuck there and i don't know what to do for the rest of the problem
D = (3 * 10^8 * 10^-3)km/s * 3690s/hr
* 1.7hrs = 18360 * 10^5km = 1.836 * 10^9km.
Correction: Change 3690s/hr to 3600s/hr.
To solve this problem, you can follow these steps:
Step 1: Convert 1.7 hours to seconds.
1 hour = 3600 seconds, so to convert 1.7 hours to seconds, multiply 1.7 by 3600:
1.7 hours * 3600 seconds/hour = 6120 seconds
Step 2: Calculate the distance traveled by the pulse from the laser beam.
The formula for distance is speed multiplied by time. In this case, the speed is the speed of light, which is 3.00 × 10^8 m/s, and the time is 6120 seconds:
Distance = Speed × Time
Distance = 3.00 × 10^8 m/s * 6120 seconds
Step 3: Convert the distance from meters to kilometers.
To convert meters to kilometers, divide the distance by 1000:
Distance in kilometers = (3.00 × 10^8 m/s * 6120 seconds) / 1000
Now, you can calculate the result using a calculator or perform the multiplication and division step by step:
Distance in kilometers = (3.00 × 10^8 * 6120) / 1000
Distance in kilometers = 1.836 × 10^12 / 1000
Distance in kilometers = 1.836 × 10^9
Therefore, a pulse from a laser beam will travel approximately 1.836 × 10^9 kilometers in exactly 1.7 hours.
To solve this problem, we can use the speed of light in a vacuum, which is approximately 3.00 x 10^8 m/s.
First, let's convert 1.7 hours to seconds:
1 hour = 60 minutes
1 minute = 60 seconds
So, 1.7 hours = 1.7 x 60 x 60 seconds = 6,120 seconds.
Now, we can calculate the distance the pulse from the laser beam travels in 6,120 seconds.
Distance = Speed x Time
Distance = (3.00 x 10^8 m/s) x (6,120 seconds)
Next, we need to convert the result into kilometers. Since 1 kilometer is equal to 1000 meters, we can divide the distance in meters by 1000 to get the distance in kilometers.
Distance in kilometers = (Distance in meters) / 1000
Now we can calculate the final answer:
Distance = (3.00 x 10^8 m/s) x (6,120 seconds)
Distance = 1.83 x 10^12 meters
Distance in kilometers = (1.83 x 10^12 meters) / 1000
Distance in kilometers ≈ 1.83 x 10^9 kilometers
So, a pulse from a laser beam would travel approximately 1.83 x 10^9 kilometers in exactly 1.7 hours.