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September 23, 2014

September 23, 2014

Posted by **I NEED HELP** on Sunday, September 7, 2008 at 5:26pm.

determine the units of teh quanity described by the following combinations of units:

a. kg (m/s)(l/s)

b. (kg/s)(m/s^2)

c. (kg/s) (m/s)^2

d. (kg/s) (m/s)

- Physics -
**Damon**, Sunday, September 7, 2008 at 5:38pma. kg (m/s)(l/s)

this is kg m/s^2

which is mass times acceleration

which is force in Newtons

b. this is Newtons/second, beats me

c. kg m/s^2 * m/s

this is force in Newtons times distance/second

which is work per second

which is power in watts

d. looks the same as a to me

- Physics -
**drwls**, Sunday, September 7, 2008 at 5:45pmIn each case, you can just multiply the units together to get the "units" of the answer. You can also rewrite kg m/s^2 as Newtons or kg (m/s)^2 as Joules

1. Is the "l" supposed to be liters? or the number 1?

If liters, then the combination is Newton-liters, or 10^-3 Joule*m^2

2. N/s

3. J/s

4. N

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