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Doss [256]
3 years ago
8

StarsA. begin as protostars, which fire up when they collapse and become denser and hotter.B. create elements by splitting the n

uclei of small atoms into the nuclei of larger atoms.C. have unlimited amounts of fuel and therefore exist indefinitely.D. all explode cataclysmically when they die and contribute their matter to future star generations
Physics
1 answer:
Colt1911 [192]3 years ago
4 0

Answer:

A

Explanation:

Begin as protostars, which fire up when they collapse and become denser and hotter.

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If a topographic map included a 6,000 ft. mountain next to an area of low hills, which would best describe the contour lines on
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Answer:

ITS B

Explanation:B IS THE ANSWER

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We have three identical metallic spheres A, B, C. Initially sphere A is charged with charge Q, while B and C are neutral. First,
larisa [96]

Answer:

The final charges of each sphere are:   q_A = 3/8 Q , q_B = 3/8 Q ,               q_C = 3/4 Q

Explanation:

This problem asks for the final charge of each sphere, for this we must use that the charge is distributed evenly over a metal surface.

Let's start Sphere A makes contact with sphere B, whereby each one ends with half of the initial charge, at this point

                q_A = Q / 2

                q_B = Q / 2

Now sphere A touches sphere C, ending with half the charge

                q_A = ½ (Q / 2) = ¼ Q

                q_B = ¼ Q

Now the sphere A that has Q / 4 of the initial charge is put in contact with the sphere B that has Q / 2 of the initial charge, the total charge is the sum of the charge

                  q = Q / 4 + Q / 2 = ¾ Q

This is the charge distributed between the two spheres, sphere A is 3/8 Q and sphere B is 3/8 Q

                  q_A = 3/8 Q

                  q_B = 3/8 Q

The final charges of each sphere are:

                q_A = 3/8 Q

                q_B = 3/8 Q

                q_C = 3/4 Q

7 0
3 years ago
A 3 kilogram cat is resting on top of a bookshelf that is 1 meters high. What is the cat’s gravitational potential energy relati
AVprozaik [17]

We have: Gravitational Potential Energy (U) = mgh

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U = 3 × 9.8 × 3

U = 88.2 J


In short, Your Answer would be 88.2 Joules


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Answer:

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liq [111]
Nitrogen: 1s2, 2s2, 2p3 is correct answer.
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