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LenaWriter [7]
2 years ago
10

4.2 a horizontal force of 4 400 N, acting to the right, is applied on a car of mass 1000kg on horizontal surface. the surface ex

ert a frictional force of magnitude 800 N on the car
4.2.1 Draw a force diagram showing all the force acting on a car

​
Physics
1 answer:
soldi70 [24.7K]2 years ago
3 0

Answer:

three properties of intrinsic semiconductor

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D,

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The 630 nm light from a helium neon laser irradiates a grating. The light then falls on a screen where the first bright spot is
mafiozo [28]

Answer:

The second wavelength is 482 nm.

Explanation:

Given that,

Wavelength = 630 nm

Distance from central maxim = 0.51 m

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We need to calculate the second wavelength

Using formula of width of fringe

\beta=\dfrac{\lambda d}{D}

Here, d and D will be same for both wavelengths

\lambda = wavelength

\beta = width of fringe

The width of fringe for first wavelength

\beta_{1}=\dfrac{\lambda_{1} d}{D}....(I)

The width of fringe for second wavelength

\beta_{2}=\dfrac{\lambda_{2} d}{D}....(II)

Divided equation (I) by equation (II)

\dfrac{\beta_{1}}{\beta_{2}}=\dfrac{\lambda_{1}}{\lambda_{2}}

\lambda_{2}=\dfrac{630\times10^{-9}\times0.39}{0.51}

\lambda_{2}=4.82\times10^{-7}

\lambda=482\ nm

Hence, The second wavelength is 482 nm.

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3 years ago
Free electrons may be transferred between bodies by:
Tasya [4]
<span>Free electrons may be transferred between bodies by "Contact Action"

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I would think that would be C.
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The <span>asthenosphere is under the lithosphere.</span>
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