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dmitriy555 [2]
3 years ago
10

A wave has a wavelength of 10mm and a frequency of 5 hz what is the speed?

Physics
2 answers:
8090 [49]3 years ago
4 0

thats not one of the answers that is provided so its pretty much wrong unless you meant 0.50 mm/s other than that its wrong.

geniusboy [140]3 years ago
3 0
V=fλ
v=5*0.01
Therefore v=0.05
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Let's start by converting to m/s. There are 3600 seconds in an hour and 1000 meters in a kilometer, meaning that 72km/h is 20m/s.

v_f=v_o+at

Since the car starts at rest, you can write the following equation:

20=0+a(5) \\\\a=20\div 5=4 m/s^2

Now that you have the acceleration, you can do this:

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Once again, there is no initial velocity:

d=\dfrac{1}{2}(4)(5)^2=2 \cdot 25=50m

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