0.45 <span>f we use 0.45 moles of KCl completely, we will produce the same amount\of AgCl. The fact about AgF Is irrelevant! </span>
Answer:
Kilowatt per hour
Explanation:
The energy is equal to the power by time.
Answer:
The earliest documented mention of the spherical Earth concept dates from around the 5th century BC, when it was mentioned by ancient Greek philosophers.[1][2] In the 3rd century BC, Hellenistic astronomy established the roughly spherical shape of the Earth as a physical fact and calculated the Earth's circumference. This knowledge was gradually adopted throughout the Old World during Late Antiquity and the Middle Ages.[3][4][5][6] A practical demonstration of Earth's sphericity was achieved by Ferdinand Magellan and Juan Sebastián Elcano's circumnavigation (1519–1522).[7]
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We use conservation of energy. Note that at the beginning of the drop, the pig has only potential energy, and at the bottom, it has only kinetic energy. Then:
Now, we multiply by
to get:
Then, we have that:
Now, we substitute.
while
. Therefore,
.
<h3><u>Answer;</u></h3>
Rotation
<em><u>Rotation</u></em> is the movement of the earth that is responsible for day and night.
<h3><u>Explanation;</u></h3>
- <em><u>Rotation is the movement of the earth in which the earth rotates around its own axis.</u></em> The earth rotates from west to east, that is eastward, which happens to be anticlockwise or counter clockwise.
- <em><u>One side of the Earth faces the sun</u></em> and thus is bathed in light and heat, thus called day time, while <em><u>the other faces away into space, </u></em>that experiences cold and dark and thus known as night time.
- <em><u>The change between day and night is caused by the rotation of the Earth. One day is determined by the time the earth takes to rotate on its own axis and includes both day time and night time</u></em>