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Deffense [45]
3 years ago
9

A wave has a wave length of 20mm and a frequency of 5 hertz. What is the speed?

Physics
2 answers:
zmey [24]3 years ago
7 0

Speed = (wavelength) x (frequency

Speed = (.020 m) x (5 / sec)

Speed = 0.1 m/s
Verizon [17]3 years ago
5 0
100 mm/s one hundred millimeters per second
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576.975 cubic feet of helium will be needed to fully inflate the balloon

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The balloon is shaped like a giant soda can.

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Height, h = 15 feet

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Radius = Diameter / 2

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V = πr²h

V = 3.14 × (3.5)² × 15

V = 3.14 × 12.25 × 15

V = 576.975 cubic feet

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