3 years ago

After a teaspoon of sugar has been stirred into a glass of water, no solid sugar can be seen. What happened to the sugar?

Physics

2 answers:

baherus [9]3 years ago

8 0

Answer:

B. The sugar dissolved

Explanation:

Sugar dissolves in water. It can't disappear, or evaporate because it's a solid.

Mariana [72]3 years ago

4 0

Answer:

B. The sugar dissolved

Explanation:

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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

Distance from central maxim of another wavelength = 0.39 m

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

Technician A says that cabin filters are accessible behind the glove compartment. Technician B says that cabin filters are acces

BartSMP [9]

Answer:

but it depends on the car

Explanation:

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A student at a polymer lab conducted a stress-relaxation experiment on a polymer, whose material response can be modeled by the

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Explanation:

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Svetlanka [38]

60kg would be the answer

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A young man exerted a force of 9,000 N on a stalled car but was unable to move it. How much work was done?

olasank [31]

W=F*s
W=9000*0
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W:Work
F:Force
s:Distance

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