The very cold (about 20 K), dense clouds of gas thought to be the most massive objects in the Galaxy are called molecular clouds.
Answer: Option B
<u>Explanation:</u>
Molecular clouds are basically the interstellar clouds made of dust and gaseous clumps. The clouds have an average density of 100 to 300 mcc with a temperature range of 10 to 20 K. The formation of stars takes place in the inner region of clouds. The size of molecular clouds may range from a few Light years to 600 Light years. A dar Nebula is the densest version of the molecular clouds.
E=the sound waves from the trombones have slightly different velocity
Answer:
longer
Explanation:
The relationship between the solar day and sidereal is as follows:
The length of the sidereal day is
= (Solar day) (solar year ÷ solar year + 1 day)
As it can be seen that the day i.e. solar its length would be greater as compared with the sidereal day.
In the case when the earn orbited the sun in 9 months rather than 12 so here the sidereal day would be the similar but the solar day would be longer as compared with the original one
Answer:
1/3
Explanation:
Gay Lusaac's law states that "the pressure of a given mass of gas is directly proportional with the absolute temperature of the gas, provided that the volume is kept constant."
In formula, we say that
P/T = k
Where
P = pressure at different points
T = temperature at different points
k = constant of proportionality
From the stated formula, if we multiply the temperature by 3, we have
P/3T = k
P * 1/3T = k
And from this, we see the pressure will change by a value of 1/3
Answer: the answer is D ☺
Explanation: