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Paraphin [41]
4 years ago
12

The vernal or spring equinox signals the beginning of spring. At this times of the year, the sun appears to be directly over Ear

th’s equator. How does this affect the day length during this time of year?
A) Day length is at its maximum.
B) Day length is at its minimum.
C) Day length equals night length.
D) There is no change in day length throughout the year.
Chemistry
1 answer:
denpristay [2]4 years ago
3 0

Answer:

The vernal equinox occurs on March 20 or March 21 each year and signals the start of spring in the Northern Hemisphere (and fall in the Southern Hemisphere). The Earth tilts at an angle of 23.5 degrees on its axis relative to its plane of orbit around the sun. My source is history.com A, i think

Explanation:

hope this hlps

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What volume of nitrogen gas is equal too 3.42x10^22 molecules of this substance
Bas_tet [7]

if i am correct the volume of nitrogen gas has to equal to molecules density, making the substance 1.27 liters :)

8 0
3 years ago
What element has 4 valence electrons and 5 electron shells?
marta [7]

Answer:  Tin (Sn)

Explanation:  The electron configuration for tin (Sn) is shown in the picture.  It's last electrons are:

5s^2 4d^10 5p^2

The valence electrons are in the 5th electron shell and include 2 each in the 5s and 5p orbitals.

8 0
3 years ago
90) Garrett has just purchased a beer distributorship. He wants to increase the Visibility of his firm inlocal markets, but he k
Otrada [13]

Answer: option C) gather information and identify stakeholders

Explanation:

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3 0
3 years ago
Which period is older than the Triassic period? Cambrian Cretaceous Jurassic Paleogene.
scoundrel [369]

The Triassic period is one of the geological periods and is the shortest of the Mesozoic era. Cambrian is the older era than the Triassic period.

<h3>What is Cambrian and triassic period?</h3>

The Triassic period existed 250 -200 million years ago and started after the vastest and most extreme devastation ever. It is the 1st period of the Mesozoic and is known for the movement of the Dinosaurs on the land, flying pterosaurs and swimming plesiosaurs and ichthyosaurs.

The Cambrian is the period of the Paleozoic era and is the most important period because of the appearance of many animals. In this period, the temperature raised on the planet and the ice sheets melted at a very dangerous rate leading to mass devastation.

Therefore, option A. <u>Cambrian</u> is older than the Triassic period.

Learn more about Cambrian and Triassic periods here:

brainly.com/question/11417834

6 0
2 years ago
A ball is thrown straight up into the air with a speed of 13 m/s. If the ball has
nataly862011 [7]

Answer:

The total energy, i.e. sum of kinetic and potential energy, is constant.

i.e. E = KE + PE

Initially, PE = 0 and KE = 1/2 mv^2

At maximum height, velocity=0, thus, KE = 0 and PE = mgh

Since, total energy is constant (KE converts to PE when the ball is rising),

therefore, KE = PE 

or, 1/2 mv^2 = mgh

or, h = v^2 /2g = 13^2 / (2x9.8) = 8.622 m

Hope this helps.

5 0
3 years ago
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