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LiRa [457]
3 years ago
13

Can someone just please paraphrase this for me.

Physics
2 answers:
EastWind [94]3 years ago
8 0
Helium released into atmosphere continues rising til escapes to space making the truly unrecoverable element
____ [38]3 years ago
5 0

Answer:

Explanation:

Helium, if released into the atmosphere, will continue to rise until it disappears into space, rendering it the only substance that cannot be recovered.

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Forces that are equal in strength and opposite indirection are
Otrada [13]
Hey there! My name is Christy and I'm gladly to help you out!


The three main forces that stop moving objects are friction, gravity and wind resistance. Equal forces acting inopposite directions are called balanced forces. Balanced forcesacting on an object will not change the object's motion. When you add equal forces in opposite direction, the netforce is zero.

Hope this helped!


4 0
4 years ago
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Explain how forces of attraction and repulsion exist within an atom
Stels [109]

Answer:

Oppositely charged particles attract each other, while like particles repel one another. Electrons are kept in the orbit around the nucleus by the electromagnetic force, because the nucleus in the center of the atom is positively charged and attracts the negatively charged electrons.

Explanation:

7 0
3 years ago
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The eiffel tower has a mass of 7.3 million kilograms and a height of 324 meters. its base is square with a side length of 125 me
uranmaximum [27]

Since the tower base is square with a side length of  125 m,

Therefore,

(125\ m)^2+ (125\ m)^2=31250 m^2

Square root of 31250 = 176.776953 (Diameter) , so this is the diameter of the cylinder to enclose it, and radius, r = 88.38834765 m and height, h = 324 m.

The volume of cylinder,

=\pi r^2h=3.14(88.38834765 m)^2\times 324 m =7948168.803\ m^3

Thus, the mass of the air in the cylinder,

=1.225\ kg/m^3 \times 7948168.803\ m^3=9736506.78\ kg

Hence, the mass of the air in the cylinder is this more  than the mass of the tower.


4 0
3 years ago
an optician uses a plane mirror to help him. suppse a patient sits in a chair 2.5m away from him. He views the image of a chart
viva [34]

Answer:

I think 75 m

Explanation:

tell if it was correct

5 0
3 years ago
I need help with this Physics problem. I've been stuck forever:
snow_tiger [21]
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