The space probe Pioneer 11 was launched April 5,1973, and reached Jupiter in December 1974 traveling a distance of 998 million km. How long did it take an electromagnectic signal to travel to earth from Pioneer 11 when it was near Jupiter.
The speed of light is, for all practical purposes, 3 x 10^8 meters/second.
Distance = rate x time.
so the distance is 998 million km
we are trying to find the time it took right
so where do i get the rate ???
Isn't the speed of light 3 x 10^8 m/s?
So rate is the speed of light too
9.98 X 10^11m = 3.00 X 10^8m/s (time)
so I converted 998 million km into m
now I divided 9.98/ 3.00
and got 3.33 x 10^19
is this correct
rate? speed? If you drive down town at 40 mi/hour, isn't that a speed? Isn't that your rate of travel?
distance = rate x time.
9.98 x 10^11 m = 3 x 10^8 x time.
Your division of 9.88/3.00 is ok but what did you do with the exponents? They count, too, don't they?
yes as you can see i put them in the answer i just dint type them out
Divide
9.98 x 10^11/3.00 x 10^8 = ?? on your calculator. My calculator doesn't give anything like 3.33 x 10^19. The only way I can get your answer is to divide
9.98 x 10^11/3.00 x 10^-8 = 3.33 x 10^19. But the speed of light is 3.00 x 10^8, not 3.00 x 10^-8.
well 9.98 X 10^11 / 3.00 x 10^8 = 3326.66
OK. Now put some units on it and round it to 3 significant figures (3.33 x 10^3 seconds) and you have it.
Thank you
To find the time it took for an electromagnetic signal to travel from Pioneer 11 near Jupiter to Earth, you can use the formula Distance = Rate * Time. In this case, the distance is 998 million km (or 998,000,000 km). The rate is the speed of light, which is approximately 3 x 10^8 meters/second.
If you want to use consistent units, you need to convert the distance from kilometers to meters. There are 1,000 meters in 1 kilometer, so 998 million km is equal to 998,000,000,000 meters.
Now you can plug these values into the formula:
998,000,000,000 meters = (3 x 10^8 meters/second) * Time
To isolate Time, divide both sides of the equation by the speed of light, which will cancel out the units:
Time = 998,000,000,000 meters / (3 x 10^8 meters/second)
Now you can perform the calculation:
Time = 3,326.67 seconds
Therefore, it took approximately 3,326.67 seconds for an electromagnetic signal to travel from Pioneer 11 near Jupiter to Earth.