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vodka [1.7K]
2 years ago
9

How are stars and comets different?(2 points)

Chemistry
2 answers:
Firlakuza [10]2 years ago
4 0

Answer:

Its D "A star is made up of Ice, rocks, and dust, while a comet is made up of burning gases."

Explanation:

evablogger [386]2 years ago
3 0

Answer:

A star is made up of burning gases, while a comet is made up of ice, gases, rocks, and dust.

Explanation:

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PLS ASAP!! Which has a wavelength of 350 nanometers?
slava [35]

Answer:

Ultraviolet light.

Hope this helps!

8 0
3 years ago
Read 2 more answers
How will the candle contributes to the pressure and temperature of gases inside the glass?
Tems11 [23]
How will the candle contributes to the pressure and temperature of gases inside the glass?

The candle contributes to the pressure and temperature of the gases inside the glass because of the increasing temperature the lit of the candle disposes into the gas molecules inside and as these gas molecules rise in temperature they become unsettling and since heat makes gas molecules robust the area becomes smaller for them to be ecstatic and as the dynamics is explained p=f/a the pressure increases.

7 0
3 years ago
The price of gold is $40.63/g. How many kg of gold would be worth $100?
lora16 [44]

Answer:

0.00246kg

Explanation:

1g = $40.63

$100 = $100/40.63 = 2.46g

2.46/1000 g = 0.00246kg

3 0
3 years ago
What is the frequency of a photon having an energy of 4.91 × 10–17 ? (c = 3.00 × 108 m/s, h = 6.63 × 10–34 J · s)​
AlexFokin [52]

Answer:

The frequency of the photon is 7.41*10¹⁶ Hz

Explanation:

Planck states that light is made up of photons, whose energy is directly proportional to the frequency of radiation, according to a constant of proportionality, h, which is called Planck's constant. This is expressed by:

E = h*v

where E is the energy, h the Planck constant (whose value is 6.63*10⁻³⁴ J.s) and v the frequency (Hz or s⁻¹).

So the frequency will be:

v=\frac{E}{h}

Being E= 4.91*10⁻¹⁷ J and replacing:

v=\frac{4.91*10^{-17} J}{6.63*10^{-34} J.s}

You can get:

v= 7.41*10¹⁶ \frac{1}{s}= 7.41*10¹⁶ Hz

<u><em>The frequency of the photon is 7.41*10¹⁶ Hz</em></u>

<u><em></em></u>

4 0
2 years ago
Write an equation that shows the formation of a manganese(II) ion from a neutral manganese atom.
bixtya [17]

Answer:

Mg ---> Mg²⁺+ + 2e⁻

Explanation:

4 0
2 years ago
Read 2 more answers
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