An alpha particle is the nucleus of a helium atom. It has a mass of 6.64x10-27 kg and a charge of +2e. What are the magnitude and direction of the electric field you would need to apply on this nucleus to balance its weight?

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this

you know that this symptom is misleading and quite often is related to: heart attack

a heart attack is a condition that occurs when the blood flow that transports oxygen to the heart muscle is damaged or cut off completely. the coronary arteries that supply the heart muscle with blood flow can be blocked by the accumulation of plaque. also, when the plaque within the heart artery breaks, it creates blood clot that can also hinder the blood flow. men that are over 45years of age and women that are over 55years of age are at risk of having a heart attack. the symptoms of a heart attack include chest discomfort, chest pain, coughing, and shortness of breath.

i guess because there isn't enough love going around. < 3