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Alona [7]
3 years ago
11

If continuous spectrum light from a star passes through a cool, low-density gas on its way to your telescope and spectroscope, _

___ spectrum on the continuous spectrum results.
Physics
1 answer:
natima [27]3 years ago
6 0

Answer: a dark (absorption) line

Explanation:

This is as a result of absorption of electromagnetic a specific wavelength. The pattern followed by such lines is characteristic of specific atoms in the path of radiation.

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Find the value of 02?
TiliK225 [7]
My educated guess : 21.2 deg
3 0
3 years ago
What is the new pressure of 150 ml of a gas that is compressed to 50 ml when the original pressure was 3.0 atm and the temperatu
Firlakuza [10]

Answer: 9.0 atm

Explanation:

To calculate the new pressure, we use the equation given by Boyle's law. This law states that pressure is directly proportional to the volume of the gas at constant temperature.

The equation given by this law is:

P_1V_1=P_2V_2

where,

P_1\text{ and }V_1 are initial pressure and volume.

P_2\text{ and }V_2 are final pressure and volume.

We are given:

P_1=3.0atm\\V_1=150mL\\P_2=?mmHg\\V_2=50mL

Putting values in above equation, we get:

3.0\times 150mL=P_2\times 50mL\\\\P_2=9.0atm

Thus new pressure of 150 ml of a gas that is compressed to 50 ml is 9.0 atm

5 0
4 years ago
Which is an example of a chemical reaction ?
julia-pushkina [17]

Answer:

paper burned and turned into smoke...

Explanation:

When a chemical reaction has taken place that means that whatever the starting variable is, (in this case it was the paper) then it cannot go back to its original state... you can also tell if a chemical reaction has taken place if the test releases any kind of gas, if there is a temperature change, or if there is a color change. Which this time it changed from paper into smoke which is a gas

Hope This Helps

8 0
4 years ago
Read 2 more answers
Porfavor alguem precisso já disstoo
s344n2d4d5 [400]

translate it to English so that we also know the meaning

3 0
3 years ago
Air enters a compressor with a pressure of 14.7 lbf/in.2 , a temperature of 70F, and a volumetric flow rate of 40 ft3 /s. Air ex
disa [49]

Answer:

210 hp

Explanation:

See attached picture.

3 0
3 years ago
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