510 degrees
60 / 25 = 2.4 RPM (Revolutions per Minute) 2.4 X 10 = 24 RPM
It rotates 25*360 = 9000 degrees.
In 1 minute it will rotate half as many times = 385. Since is minute is 60 seconds then the rate is 385/60 per second = 6.41666.
At 0 minutes, turn both the hourglasses.After 4 minutes:The 4 minute hourglass: 0 minutes left.The 7 minute hourglass: 3 minutes left.Turn the 4 minute hourglass.After 7 minutes:The 4 minute hourglass: 1 minute left.The 7 minute hourglass: 0 minutes left.Turn the 7 minute hourglass.After 8 minutes:The 4 minute hourglass: 0 minutes left.The 7 minute hourglass: 1 minute left.Turn the 7 minute hourglass.After 9 minutes:The 4 minute hourglass: 0 minute left.The 7 minute hourglass: 0 minutes left.Now you know you are finished.
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90 degrees
60 degrees
Let's do some math: The Earth rotates in 24 hours and during that time it covers 360 degrees. One hour has 60 minutes, so a day has 24x60=1440 minutes. Therefore, the Earth covers 360/1440 degrees per day and 0.25 degrees per minute.
No - the minute hand rotates 24 times in 24 hours !
Since the phonograph record rotates at 33.3 revolutions per minute (rpm), then the revolutions that it turns in 5 minutes is 5*33.3. This is a total of 166.5 revolutions.
12 minutes is 1/5th of an hour. The minute hand sweeps 360 degrees - a full circle - in one hour. So the angle formed by the start and stop of a 12-minute sweep of the minute hand would be 1/5th of 360 degrees or 72 degrees.
60 / 25 = 2.4 RPM (Revolutions per Minute) 2.4 X 10 = 24 RPM
RPM = revolutions per minute 0,000694rpm -> considering that the Earth rotates in 24 hours 0,000696rpm -> considering that the Earth rotates in 23h and 56 minutes (which is the real time in which the Earth makes 1 revolution) therefore in general its .00069
It rotates 25*360 = 9000 degrees.
In 1 minute it will rotate half as many times = 385. Since is minute is 60 seconds then the rate is 385/60 per second = 6.41666.
There is exactly 1 minute in a minute. There is 0.01666... recurring hours in 1 minute.
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