3
One.
Speed = distance / time = 55 / 28 = 1.96 m/s (correct to 3 significant figures)
733 minutes x 60.0 seconds/minute = 43,980 seconds. This should preferably be written as 4.40 x 104 seconds, because only three significant digits are justified by the value 773 used in the calculation. (The question is unclear; therefore, this may not be the expected answer, which is for the supposed question "Change 733 minutes to seconds.")
30000 milli seconds. Calculation: 1 sec = 1000 milisecs 30 sec = 30 * 1000 millisecs.
Ok, in 1 minute there are 60 seconds,there are also 60 minutes in an hour So the calculation is 60x60=3600 second in 3 hours!
One.
One.
They have three significant digits
The answer kind of depends on what "this problem" is!
2,592,000 seconds.
One day is equal to 60 x 60 x 24 = 86400 seconds. Therefore, rounded to three significant figures, 599 seconds is equal to 599/86400 = 0.00693 days.
Speed = distance / time = 55 / 28 = 1.96 m/s (correct to 3 significant figures)
15 seconds
60 seconds = 1 minute60 minutes = 1 hour→ 7380 second = 7380 ÷ 60 minutes = 123 minutes = 123 ÷ 60 hours = 2 1/20 hours = 2.05 hours
When using division or multiplication, the number of significant figures should be no more than the factor with the least number of significant figures. In this case, you have 35.896/6.25 so the answer should have only 3 significant figures (based on 3 SF in 6.25). The answer would be 5.74 m/sec.
Divide total meters by total seconds to get meters per second
In 1 hour there is 3600 seconds. The calculation i used was 60x60. i hope this is helpfull.