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2 years ago

14

Use your knowledge of waves and the graph shown to determine the frequency of wave C. What does it tell you about speed of the w

ave?

1 answer:

stealth61 [152]2 years ago

6 0

Answer

10

Explanation:

goes up by 10 each time 10 to 20 to 30

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Why won't a very bright beam of red light impart more energy to an ejected electron than a feeble beam of violet light?

bearhunter [10]

This is related to the energy carried by photons of light the energy of each photon is proportional to the frequency of the light since red light has a lower frequency then violet light and photons of red light carry less energy than the photons of violet light as a result the red protons eject electrons that have less energy than the ejected electrons by Violet photons

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3 years ago

A child’s toy that is made to shoot ping pong balls consists of a tube, a spring (k = 18 N/m) and a catch for the spring that ca

UkoKoshka [18]

Answer:

The height is 3.1m

Explanation:

Here we have a conservation of energy problem, we have a conversion form eslastic potencial energy to gravitational potencial energy, so:

$E_e=\frac{1}{2}K*x^2\\E_e=\frac{1}{2}18N/m*(9.5*10^{-2}m)^2\\E_e=0.081J$

then we have only gravitational potencial energy when the ball is at its maximun height.

$E_g=m*g*h$

because all the energy was transformed Eg=Ee

$h=\frac{0.081J}{9.8m/s^2*m}$

searching the web, the mass of a ping pong ball is 2.7 gr in average. so:

$h=\frac{0.081J}{9.8m/s^2*(2.7*10^{-3}kg)}\\h=3.1m$

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3 years ago

Is wally from young justice dead or is he in another verse running to get to the team

nasty-shy [4]

In another verse running to get to the team

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3 years ago

A unit of power equal to 746 watts is a

NemiM [27]

≈ 746 watts is a 1 Horsepower, because that's in the SI base unit.

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3 years ago

What is the speed of a wave with a period of 25 sec/cycle and a wavelength of 15 m/cycle?please help me !

Nuetrik [128]

The answer of this question is 0.6m/s

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3 years ago