9 articles trouvés pour ce sujet.
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A dot on a child's car wheel |
2019-04-28 |
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julia pose la question :
A wheel of a child’s car revolves at 10 rpm. A painted dot on the circumference of the wheel is 12 cm from the centre of rotation of the wheel. How far does the dot travel in 5 s, to one decimal place?
Penny Nom lui répond. |
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A rotating wheel |
2018-08-24 |
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Kay pose la question :
A wheel with a radius of 7 inches is rotating at 4 revolutions per second. What is the
linear speed v, in feet per second?
p lui répond. |
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Revolutions per minute |
2014-10-24 |
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Edward pose la question :
Hello; I have a 28.2 inch diameter tire; do not worry about engine RPM or gear ratios, please tell me what the RPM
of that tire is at 8 MPH and 64 MPH. Thank you.
Sincerely; Edward
Penny Nom lui répond. |
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Angular speed |
2014-06-29 |
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andrea pose la question :
a wheel having a radius of 10cm rotates such that the linear speed at its rim is 30mls.
what is the angular speed of the wheel in rpm?
Penny Nom lui répond. |
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How many rpm does a 3.5 in. diameter wheel turn at 7 miles per hour? |
2011-12-06 |
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Al pose la question :
how many rpm does a 3.5 in. diameter wheel turn at 7 miles per hour
Penny Nom lui répond. |
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Angular speed |
2010-12-12 |
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Jason pose la question :
7 in. pulley traveling @ 175ft/sec. What is the rpm?
Stephen La Rocque and Penny Nom lui répond. |
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What size pulley would I need? |
2006-12-29 |
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Chris pose la question :
If I have a motor that's spinning at 950 RPM's with a pulley that's 6in diameter with a belt running to a generator, What size pulley would I need on the generator to make it spin at 3600 RPM
Penny Nom lui répond. |
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How do I calculate the roll diameter? |
2006-11-05 |
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Bob pose la question :
if I have the RPM of the roll and the thickness of the web coming off the roll and the mm/min of the web how do I calculate the roll diameter?
Stephen La Rocque lui répond. |
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A rock on a string |
2003-10-26 |
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A student pose la question :
a rock on a 4' string is rotated at 80 rpm. what is the linear speed in feet per second? in miles per hour?
Penny Nom lui répond. |
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