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stepan [7]
3 years ago
10

A wave traveling in water has a frequency of 250 Hz and a wavelength of 6.0 m. What is the speed of the wave

Physics
1 answer:
Aleks04 [339]3 years ago
7 0
Speed of wave = frequency x wavelength
                        =     250 x 6 = 1500 m/s.
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why is it important to create pictorial and physical models before trying to solve an equation, solving a physics problem
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Many fundamental laws of physics and chemistry can be formulated when doing this.
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2 years ago
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A high speed train is traveling at a speed of 44.7 m/s when the engineer sounds the 415 Hz warning horn. The speed of sound is 3
il63 [147K]

Answer:

Explanation:

Speed of the source of sound = v = 44.7 m/s

Speed of sound = V = 343 m/s

a) Apparent  frequency as the train approaches = f =  [V /(V -v) ] × f

= [343 / (343 - 44.7) ] × 415  = 477.18 Hz

Wave length =  λ = v / f = 343 / 477.18 = 0.719 m

b) Frequency heard as the train leaves = f ' =  [V / ( V + v) ] f

                                                                     = [343 / { 343 + 44.7 ) ] x 415

                                                                      = 367.2 Hz

Wavelength when leaving = v / f = 343 / 367.2 = 0.934 m

8 0
3 years ago
Two similar fans are operating in a room. Fan 1 makes a squeaking noise while running. Fan 2 is silent.
REY [17]

Answer:

a

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because it has more energy

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A ball with a mass of 3.1 kg is moving in a uniform circular motion upon a horizontal surface. The ball is attached at the cente
inessss [21]

Answer:

3.46 seconds

Explanation:

Since the ball is moving in circular motion thus centripetal force will be acting there along the rope.

The equation for the centripetal force is as follows -

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Thus, the mass will complete one revolution in 3.46 seconds.

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3 years ago
What charges are needed in the objects to attract both objects?
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Answer:

both

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