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Nina [5.8K]
3 years ago
15

When a wave is acted upon by an external damping force, what happens to the energy of the wave

Physics
2 answers:
Rasek [7]3 years ago
8 0
The energy of the wave decreases gradually
bazaltina [42]3 years ago
3 0

Answer:

Explanation:

  The energy of the wave its determined by the mass of the fuid of the wave and the speed. The amount of motion equation P= m.v

  So according to the impulse and amount of motion theorem (ΔP= mvₙ- mv₀).

  If the wave is acted upon by an external dumping force, the wave its going to decrease his energy because the reduction of the speed and the mass.  

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When you do work on an object some of your energy is ____ to that object
HACTEHA [7]
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3 years ago
Suppose light from a 632.8 nm helium-neon laser shines through a diffraction grating ruled at 520 lines/mm. How many bright line
Leya [2.2K]

Answer:

1 bright fringe every 33 cm.

Explanation:

The formula to calculate the position of the m-th order brigh line (constructive interference) produced by diffraction of light through a diffraction grating is:

y=\frac{m\lambda D}{d}

where

m is the order of the maximum

\lambda is the wavelength of the light

D is the distance of the screen

d is the separation between two adjacent slit

Here we have:

\lambda=632.8 nm = 632.8\cdot 10^{-9} m is the wavelength of the light

D = 1 m is the distance of the screen (not given in the problem, so we assume it to be 1 meter)

n=520 lines/mm is the number of lines per mm, so the spacing between two lines is

d=\frac{1}{n}=\frac{1}{520}=1.92\cdot 10^{-3} mm = 1.92\cdot 10^{-6} m

Therefore, substituting m = 1, we find:

y=\frac{(632.8\cdot 10^{-9})(1)}{1.92\cdot 10^{-6}}=0.330 m

So, on the distant screen, there is 1 bright fringe every 33 cm.

6 0
3 years ago
-A 180 kg hippo is riding a bicycle at a speed of 6.0
Vlad1618 [11]

Answer:

0.0675 seconds

Explanation:

From the question,

We apply newton's second law of motion

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Where F = force exert by the brake, v = final speed, u = initial speed m = mass of the bicycle, t = time.

make t the subject of the equation

t = m(v-u)/F................... Equation 2

Given: m = 180 kg, u = 6.0 m/s, v = 0 m/s (comes to stop), F = -1600 N ( agianst the dirction of motion)

Substitute these value into equation 2

t = 180(0-6.0)/-1600

t = -1080/-1600

t = 0.0675 seconds.

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Answer:

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6 0
2 years ago
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Answer: KCI stands for kinetic corporation inc its a global corporation that produces medical technology related to the wounds and healing wounds

(i hope that's what you meant)

Explanation:

7 0
3 years ago
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