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2 years ago

PLEASE HELP QUICK GIVING AWAY 74 POINTS

Physics

1 answer:

kramer2 years ago

5 0

Mercury, Venus, Earth, Mars. Terrestrial, rocky : 11

The spinning of a planet on its axis, causing day and night :9

A force of attraction that keeps planets orbiting the sun : 7

A group of objects that orbit a star : 8

The orbit of a planet around the sun. On Earth, one year : 10

The idea of that the Earth and planets orbit the sun. A sun-centered view : 6

A rock that has entered Earth's atmosphere, leaving a streak of light in the night sky : 13

Jupiter, Saturn, Uranus, Neptune. Gas giants : 12

The theory the universe came forth from a single spot in an enormous explosion: 1

Huge clusters of stars, gas, and dust bound by the force of gravity: 8

<h3>What is Galaxy?</h3>

The group of many stars along with interstellar gases, rocks and dust material.

Thus, the numbers are added in front of the sentences.

Learn more about galaxy.

brainly.com/question/24836631

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A scientist wants to learn about Earth's oceans. Which of the following

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Hydrosphere - all the waters on the earth’s surface.

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Differences between pavement and<br>cuboidal epithelium tissue

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A scientific hypothesis starts with the lowest level of acceptance but can become stronger as they are used and survive repeated

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True.

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Hypotheses are supposed to be tested, to be proven correct. They usually start from a small thought without 100% correct, but as you do further testing, they become stronger.

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3 years ago

Read 2 more answers

Matter comprises all of them and among them are independent. what are they

telo118 [61]

<em>Matter is composed of elementary particles i.e. quarks and leptons.</em>

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8 0

3 years ago

(1 point) At noon, ship A is 10 nautical miles due west of ship B. Ship A is sailing west at 22 knots and ship B is sailing nort

Veronika [31]

Answer:28.8 knots

Explanation:

The ships are moving as the sides of a right triangle. Thus, Pyhogorean theorem will be useful in the following steps. Next, we have to know that the rate of change in distance, which is called velocity, can be described in terms of derivatives.

First, we have to calculate the distances covered by the ships from noon to 6 PM. In 6 hours, ship A moved 22*6=132 nautical mile. However, their first distance was 10 nautical miles, so 132+10=142 miles is the equivalent of A's displacement. For B, the distance travelled is 19*6=114 miles. From now on, A=142 miles and B=114 miles.

The distance between them is described with Pythogorean theorem, which is $D=\sqrt{A^{2} +B^{2} }$ and when we replace the values A and D, we find Distance (D) to be 182 miles.

Now, let's make the notations clear. The velocity of A and B is notated as $\frac{dA}{dt}$ and $\frac{dB}{dt}$ . The rate of change of distance is also notated as $\frac{dD}{dt}$ . Now, we have to find $\frac{dD}{dt}$ from the Pythogorean theorem. If we derive the Pythogorean expression $D=\sqrt{A^{2} +B^{2} }$ , we would have:

$\frac{dD}{dt} =\frac{1}{2} *(A^{2} +B^{2} )^{-1/2} *(2*A*\frac{dA}{dt} + 2*B*\frac{dB}{dt} )$

The derivation here includes chain rule and derives the interior parts of the parenthesis. When we insert distances for A and B and velocities for derivation notations, the formula becomes:

$\frac{dC}{dt} =\frac{1}{2}*(142^{2} +114^{2})^{-\frac{1}{2} }*(2*142*22 + 2*114*19)$ and the answer is 28.6 knots.

6 0

3 years ago