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3 years ago

A surfer is actually traveling on which part of a surface wave

Physics

2 answers:

77julia77 [94]3 years ago

8 0

A surfer travels on the crest of a surface wave

elixir [45]3 years ago

3 0

Answer:

Surfer travels at the crest

Explanation:

Waves on the surface of water is known as surface waves in which the disturbance will travel in form of crest and trough.

Now we know that disturbance or energy will travel along the surface due to which the crest and trough will also move along the surface with same speed

Now here surfer travel at the position of the crest of the wave because at that position the surfer will remain at the top of the wave due to which his balancing while he is in motion will be easier.

So here we can say the surfer will remain static with respect to the crest of the wave and crest move with the speed of wave and hence A surfer is actually traveling on CREST of a surface wave

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A 66-foot-tall woman walks at 55 ft/s toward a street light that is 2424 ft above the ground. What is the rate of change of th

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Answer:

a. $\frac{dx}{dt}=20ft/s$

b. $\frac{d(x+L)}{dt}==25ft/s$

Explanation:

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The peak emf produced in a rotating loops= N×B×A×w
N= no. of turns of the loop, B= magnetic field, A= area of loop and w= angular frequency
So, B = emf/(N×A×w)

<h3>What's the magnetic field applied to the loop, when rectangular coil with 300 turns of dimensions 5.00 cm by 5.22 cm rotates at 400 rpm produce a 24.0 V peak emf?</h3>

N= 300, A= 5cm × 5.22cm = 0.05m × 0.0522m = 0.00261 m²
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B= 24/(300×0.00261×42) = 0.73T

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