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.")
To convert seconds to minutes, divide the number of seconds by 60, since there are 60 seconds in a minute. For 3600 seconds, the calculation is 3600 ÷ 60, which equals 60 minutes. Therefore, 3600 seconds is equivalent to 60 minutes.
30000 milli seconds. Calculation: 1 sec = 1000 milisecs 30 sec = 30 * 1000 millisecs.
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.
15 seconds
Speed = distance / time = 55 / 28 = 1.96 m/s (correct to 3 significant figures)
60 seconds = 1 minute60 minutes = 1 hour→ 7380 second = 7380 ÷ 60 minutes = 123 minutes = 123 ÷ 60 hours = 2 1/20 hours = 2.05 hours
In 1 hour there is 3600 seconds. The calculation i used was 60x60. i hope this is helpfull.
Divide total meters by total seconds to get meters per second
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.