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Answer:

1 = 7.5m/s and 2 = 8m/s

Explanation:

For question no. 1

Given

wavelength = 5 m

Frequency = 1.5 Hz

Velocity =?

We have the formula that

Velocity = wavelength * frequency

= 5 * 1.5

= 7.5 m/s

For question no. 2

Frequency = 2 Hz

Wavelength = 4 m

Velocity = ?

We have the formula that

Velocity = wavelength * frequency

= 4* 2

= 8 m/s

Hope it will help :)

Answer:

1. 7.5m/s

2. 8m/s

Explanation: velocity = Wavelength x Frequency so 5m*1.5Hz=7.5m/s and 2Hz*4m=8m/s

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