Question

Use dimensional analysis to convert each of the following. 60 miles per hour to miles per minute

Answer 1

So, do you know where to start with this? Or are ya starting completely from scratch?

Answer 2

one hour equal how many minutes ?

Answer 3

Tutor do you know it ?

Answer 4

i like help you explaining step by step

Answer 5

u see that aint workin :T

Answer 6

Start by converting /hr to /sed

Since 1 hr = 60 min, 1 min= 60 sec,

55 mi/hr X 1 hr/60 min X 1 min/60 sec.

You now have miles/sec. Now, you need to convert miles into cm. The equalities you might use are:

1 mile = 5280 feet
1 foot = 12 inches
1 inch = 2.54 cm

You need to set up the equalities so that the unit you want to eliminate appears in the demoninator and the unit you want to retain is in the numerator. So, continuing from above,

55 mi/hr X 1 hr/60 min X 1 min/60 sec X 5280 ft/mi X 12 in/ft X 2.54 cm/in

Multiply all of those together and check that you end up with the correct units for your answer, and you're done.

Answer 7

why so much details you need give the answer in miles per minutes

Answer 8

who cares about the detail! it helps the person with the answer!

Answer 9

@brainzonly

Answer 10

I see "miles" throughout. So, if you've copied the problem down correctly, you have nothing to convert here. On the other hand, you're supposed to convert from "hour" to "minutes." The correct conversion relationship is 60 minutes = 1 hour. Please refer to kg1975's comments, above.

Answer 11

Thank You!

Answer 12

kg1975: that comment wasn't called for, and you should not be taunting another user.

Answer 13

i dont try to :T he keeps telling me im wrong when everyone else agrees with me tell that to him and some people listen to him and get there answers WRONG. Nobody listens to me because o im so dumb!

Answer 14

which im not!!!

Answer 15

End discussion for now. Tutorlover is offline. Wait until he / she returns and posts some comments before responding again.