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Anestetic [448]
3 years ago
9

A student heats a liquid on a burner. What happens to the portion of liquid that first begins to warm? It loses energy. It becom

es less dense. It sinks downward. Its molecules get closer together.
PLEASE HURRY
Physics
2 answers:
4vir4ik [10]3 years ago
6 0

Answer:

B

Explanation:

Because i said so

scoray [572]3 years ago
5 0

Answer:

they get closer together

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Which statement is the best example of pseudoscience?
Nady [450]
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5 0
3 years ago
Express the kinetic energy K in terms of the potential energy U.<br><br><br> K=GMm/2R
max2010maxim [7]

Answer:

K = -½U

Explanation:

From Newton's law of gravitation, the formula for gravitational potential energy is;

U = -GMm/R

Where,

G is gravitational constant

M and m are the two masses exerting the forces

R is the distance between the two objects

Now, in the question, we are given that kinetic energy is;

K = GMm/2R

Re-rranging, we have;

K = ½(GMm/R)

Comparing the equation of kinetic energy to that of potential energy, we can derive that gravitational kinetic energy can be expressed in terms of potential energy as;

K = -½U

7 0
3 years ago
Plz do it all i will give brainlest and thanks to best answer.
maxonik [38]
Its a, metal is a good conductor of heat so yea
Hope this helps :)
4 0
3 years ago
Read 2 more answers
GIVING BRAINLIEST PLEASE HELP ME!!!
kumpel [21]

Answer:

I'm Pretty sure the answer your looking for is C

4 0
3 years ago
Help me calculate the kinetic energy (just the middle column) ASAP! SHOW WORK! ON PAPER
lukranit [14]

Answer:

Explanation:

I can tell you what the answers for the middle column are, but if you don't know how to solve total energy problems, they won't make any sense to you at all.

First row, KE = 0

Second row, KE = 220500 J

Third row, KE = 183750 J

Fourth row, KE = 205800 J

That's also not paying any attention to significant digits because your velocity only had 1 and that's not enough to do the problem justice. I left all the digits in the answer. Round how your teacher tells you to.

3 0
3 years ago
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