What happens to the ancient calendar during the winter and summer solstices

1 answer:

5 0

During the winter solstices, we experience the longest day and the shortest night while during the summer solstices the sun is at its highest point in the sky.

<h3>What is the Solsticest?</h3>

The Solstices is the season that occurs at the moment the earth's tilt toward or from the sun is at a maximum. There are two seasons of Solstices which include the following:

The winter solstices: This occurs when the sun is directly over the Tropic of Capricorn causing us to have the shortest day and longest night of the year.

The summer solstices: The sun is at its highest elevations.

Learn more about solstices here:

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The diameter of a sphere is 4 centimeters. Which represents the volume of the sphere?

pishuonlain [190]

Answer:

V=25.133 cm^3

(Is 4 the diameter you were given? To get one of those answers, I think you May have put the wrong diameter)

Explanation:

Radius is diameter/2

R=4/2

R=2

Volume of a sphere=4/3πr3

V=4/3π(2)3

V=25.133 cm^3

7 0

3 years ago

If helium effuses through a porous barrier in 1.34 min, how much time (in min) would it take the same amount of ammonia to effus

timofeeve [1]

Answer:

The time taken the same amount of ammonia to effuse through the same barrier under the same conditions is 2.76 minutes.

Explanation:

Let the volume of the helium gas be = V

Time taken by the helium gas = t = 1.34 min

Effusion rate of helium gas = $R=\frac{V}{1.34 min}$

If V volume of ammonia effuse through same porous barrier the effusion rate of ammonia gas will be given as:

$R'=\frac{V}{t'}$

Using Graham's Law.

This law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows the equation:

$\text{Rate of diffusion}\propto \frac{1}{\sqrt{\text{Molar mass of the gas}}}$