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telo118 [61]
2 years ago
15

(EARTH SPACE SCIENCE QUESTION)

Physics
2 answers:
Sergeeva-Olga [200]2 years ago
8 0

*may be egg shaped

*has no new stars being formed

*has almost no gas or dust between stars

I literally just took notes on elliptical galaxies a week ago wow

posledela2 years ago
6 0

Answer:

a, may be egg shaped

d, has no new stars being formed

e, has almost no gas or dust between stars

Explanation:

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Answer:

Ultraviolet rays from sun are very harmful from skin and can cause sunburn and skin diseases especially ultraviolet B rays.<em> A sunscreen  lotion act as a protection barrier on the skin that restrict the direct contact of UV rays with skin and filter the harmful rays to enter the skin. </em>

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3 years ago
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This is a vector subraction problem.

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Which type of mine involves digging tunnels and shafts deep underground?
mel-nik [20]

The mine involves digging tunnels and shafts deep underground is the underground mining.

<h3>What is mining?</h3>

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7 0
1 year ago
A pair of slits separated by 1 mm, are illuminated with monochromatic light of wavelength 411 nm. The light falls on a screen 1.
Ilya [14]

Answer:

t = 0.192 \mu m

Explanation:

Path difference due to a transparent slab is given as

\Delta x = (\mu - 1) t

here we know that

\mu = 1.79

now total shift in the bright fringe is given as

Shift = \frac{D(\mu - 1)t}{d}

Also we know that the fringe width of maximum intensity is given as

\delta x = \frac{\lambda D}{d}

now we have

\frac{D}{d} = \frac{\delta x}{\lambda}

now the shift is given as

Shift = \frac{(\mu - 1) t \delta x}{\lambda}

given that the shift is

Shift = 0.37 \delta x

here we have

0.37 \delta x = \frac{(\mu - 1) t \delta x}{\lambda}

now plug in all values in it

0.37 = \frac{(1.79 - 1) t}{411 \times 10^{-9}}

t = 0.192 \times 10^{-6} m

t = 0.192 \mu m

3 0
3 years ago
The wavelength of sound wave is 30 m. Frequency is 7 Hz. What is the wave speed
MaRussiya [10]

Answer:23hz

Explanation:

6 0
3 years ago
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