help please?

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A radio wave travels 186 000 miles per second. How many kilometers will the wave travel in one microsecond? (1 mile= 1.61 km)

2006-11-26 18:00:43 · 3 answers · asked by soled fresh * 2 in Science & Mathematics ➔ Chemistry

Use dimensional analysis:

186 000 mi / s | 1.61 km / mi | 1 s / 1 000 000 μs | = 0.299 km/μs

2006-11-26 18:06:37 · answer #1 · answered by Anonymous · 0⤊ 0⤋

2.9946x 10^-4 km

2006-11-27 02:04:57 · answer #2 · answered by pigley 4 · 0⤊ 0⤋

thats hard...........makes my brain hurt

2006-11-27 02:09:21 · answer #3 · answered by Anonymous · 0⤊ 0⤋