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elena-s [515]
2 years ago
8

I’m not sure how to do 30, could someone pls help?

Physics
1 answer:
choli [55]2 years ago
8 0

I think its C or D.

Einstein's Nobel winning photoelectric equation.

The higher the work function, the more energy needed to photoeject an electron from the surfface

Try D

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What kind of light results when the total spectrum of refracted light is recombined? violet green white red?
ElenaW [278]
Hello
The final light will be white. In fact, each color of the visible spectrum is an electromagnetic wave with its own specific frequency and wavelength. White, instead, does not have a specific frequency: it is the sum of all the different wavelengths of the visible spectrum. Therefore, when recombining the spectrum of the refracted light all the different frequencies recombine together, and their sum gives white light.

(edited)
4 0
3 years ago
How does an inclined plane affect the effort needed to move a load vertically?
VashaNatasha [74]

If we pull an object vertically upwards then we need to apply a force which is equal in the magnitude of the weight of the object

F = mg

now when we pull the same object upwards along an inclined plane with angle then we require a force which will balance the component of weight along the inclined

so it is given as

F' = mgsin\theta

so as if we compare the two forces we can say that since the value of sine is always less than 1 for an angle less than 90 degree

so in the 2nd case when we pull the object along the inclined plane it will require less effort

so correct answer is

<em>A. reduce effort</em>

5 0
2 years ago
Is lateral shift or lateral displacement same ?
xxMikexx [17]

Answer:

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Explanation:

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7 0
3 years ago
Is a process that modifies light waves so they vibrate in a single plane.
Naddik [55]

You're fishing for "polarization".

4 0
3 years ago
Read 2 more answers
A jet with mass m = 5 × 104 kg jet accelerates down the runway for takeoff at 1.9 m/s2. What is the net vertical force on the ai
OLEGan [10]
The first sentence got me all psyched up to answer the question "What
horizontal force do the engines generate in order to accelerate it ?". 

But the actual question, in the second sentence, turned out to be
a completely different one.

When the plane levels off and continues on at a constant altitude, it's
not accelerating up or down, so the net vertical force on it is zero. 
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3 0
3 years ago
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