Protons and neutrons have similar mass. Electrons are smaller than a proton or a neutron. An atomic scientist was studying an atom and through experimentation found that the total negative charge of the area surrounding the nucleus is -9.
I think the correct answer is: Evaporation
Answer:
Magnets stick to the fridge door because, underneath the paint, the door is made of steel. Magnets are attracted to certain metals, and if the attraction is strong enough they can hold on even when upside down. ... This means that a magnet will always be attracted to the door. But an iron nail does not have any magnetic properties. So it doesnt get attracted.
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Answer:
The air pressure in the ears increases
The volume of air in the ears increases
The change in volume causes discomfort
It takes time for the ears to dispell excess air past the ear drum.
Explanation:
As the plane engages in a steep incline into the atmosphere, the outside atmospheric pressure decreases with altitude. The air pressure in the ear, therefore, become greater than atmospheric pressure. The air volume in the ear therefore grows and pushes on the ear causing discomfort. As the air in the cabin pressurizes the discomfort eases away as pressure equalization is restored relative to the ear.
If 1 mole of helium is 4.002602 then 1.2 mole is about ~ 4.803 ♂️.