Help me solve conversion for chemistry
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Help me solve conversion for chemistry

[From: ] [author: ] [Date: 12-09-13] [Hit: ]
0km/3600s = 0.0194km/s or 1.......
Hi I have to solve this conversion for Chemistry class,this is the only one I cannot solve. I have to set it up with scientific notation and so they cross out. I have the answer I just do not know how to set it up.

The speed of a car is 43.5 mph. What is its speed in units of km/s (1km=0.6214 mi)

Correct answer should be 1.94x10^-2km/s/
Thank you so much.

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43.5 miles = 43.5mi x 1km/0.6214mi = 70.0km
1 hour = 60 x 60 seconds = 3600s

so 70.0km/3600s = 0.0194km/s or 1.94x10^-2 km/s
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