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Anastasy [175]
3 years ago
9

Questlon 7 of 10

Physics
2 answers:
katovenus [111]3 years ago
6 0

Answer:

Plasma

Explanation:

Aye pecks said so

jek_recluse [69]3 years ago
5 0

Answer:

0B. Liqiud can always conduct electricity

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Write any two importance of gravitational force​
saul85 [17]

Answer:

plz mark me as brainliest plz

Explanation:

The gravitational force of the earth keeps us bound to the earth. Gravitational force between earth and sun makes the earth move around the sun. Gravitational force between moon and earth makes the moon go around the earth.

5 0
3 years ago
A 40 foot beam that weighs 125 pounds is supported at the two ends by walls. It also supports a 600 pound AC unit 5 feet from th
Dmitrij [34]

Answer:

A) 588 pounds

Explanation:

According to the given conditions, we assume the beam to be simply supported at the ends carrying a uniformly distributed load of 125 pounds per feet and a point load of 600 pounds acting at 5 feet from the right support.

Referring the schematic:

<u>Moment about any point will be zero in equilibrium condition. </u>

∴Take moment about point L

F_r\times 40=125\times 20+35\times 600

F_r=587.5 lb

8 0
4 years ago
Which two energy sources can help a star maintain its internal thermal pressure? nuclear fission and gravitational contraction n
3241004551 [841]

Answer:

Nuclear fusion and gravitational contraction

Explanation:

In stars, there is an equilibrium between two forces, the force of gravity in the inward direction due to their own mass, and the radiation pressure in the upward direction as a consequence of the nuclear reaction in their core, that is known as hydrostatic equilibrium.

The radiation pressure is gotten from the nuclear reactions at the core (when lighter elements fuse into heavier elements), but if the nuclear reactions stop, hence, the radiation pressure will also do it and the force of gravity will overcome and break the equilibrium.

Both of that energy sources help to maintain a star's internal thermal pressure, since the contractions of the superficial layers will increase the density at the core.

5 0
4 years ago
Read 2 more answers
A light ray travelling from diamond into air has an angle of refraction of 56 degrees. A piece of glass is then placed right nex
boyakko [2]
There is no question... but the ray would enter the glass with an angle of incidence equal to 56 degrees
5 0
3 years ago
A if two such generic humans each carried 2.5 coulomb of excess charge, one positive and one negative, how far apart would they
dolphi86 [110]

Using Coulomb's Law <span>

F = {k(Q1)(Q2)}/r² 

Where F =force in Newtons, k = Coulomb constant, Q1 = - Q2= charge of the objects in Coulumbs, and r is the distance between the objects. 

Solving for r: 

r = sqrt[{k(Q1)(Q2)}/F] 

where k = 8.897 x 10^9 N•m²/C², Q1 = 2.5 C, Q2 = -2.5 C, and F = -700 N 

Note: Negative magnitude of Force indicates attraction. 

<span>r = 8,912.77 m</span></span>

3 0
4 years ago
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