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3 years ago

I NEED HELP PLEASE THANKS! :)

Physics

1 answer:

Nady [450]3 years ago

7 0

Answer:

0.962 s

Explanation:

Speed = frequency × wavelength

v = fλ

2.60 m/s = f (2.50 m)

f = 1.04 Hz

Period = 1 / frequency

T = 1/f

T = 1 / (1.04 Hz)

T = 0.962 s

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3 years ago

A dart gun suspended by strings hangs in equilibrium. The mass of the gun is 355 grams, not including a dart. The gun fires a 57

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Answer:

dart's speed is 11.77 m/s

Explanation:

given data

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height = 18.3 centimeters = 0.183 m

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solution

we apply here law of conservation of energy that is express as

mgh = 0.5 × m × v² ...........1

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and

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v = 11.77 m/s

so dart's speed is 11.77 m/s

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3 years ago

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