0
How for apart two protons be if the electrostatic force exerted by one on the other is equal to weight of electron?
Wiki User
∙ 10y ago
Electron rest-mass = 9.11 x 10-31 kg
Electron "weight" on Earth = M G = (9.11 x 10-31) x (9.807)
Elementary charge = 1.60 x 10-19 coulomb
Electrostatic force between two charges = (1/4 pi ε0) Q1Q2/R2 newtons
ε0 = 8.85 x 10-12farad/meter
(9.11 x 10-31) x (9.807) = (1/4 pi x 8.85 x 10-12) x (1.60 x 10-19 )2 / R2
The answer to the question is to solve this ugly thing for the ' R ' at the end.
R = the square root of { (1/4 pi x 8.85 x 10-12) x (1.60 x 10-19 )2 / (9.11 x 10-31) x (9.807)}
Here's the number I get with my trusty calculator. Please check it for me:
5.076 meters . (about 16.65 feet)
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What do Neutrons and protons have a weight about 1840 times?
an electron.
Compare the mass of an electron to a proton.?
Electrons weigh in at about 9.1 x 10^-28 grams and protons about 1.67 x 10^-24 grams, making the proton about 1,837 times heavier than the electron. This is roughly about the same weight of a rabbit compared to an elephant.
How much neutrons does molybdenum have?
Most molybdenum atoms have 54 neutrons. The atomic number (number of protons) of molybdenum is 42, and its weight (number of protons and neutrons) is around 96. 96 - 42 = 54.
What is the basic unit of weight in the metric system?
Note that weight actually refers to force exerted due to the acceleration of gravity and the mass of an object. It is commonplace to see the terms weight and mass used interchangeably, though. The SI base unit of mass is the kilogram. The original metric system specified the gram as the base mass unit. The SI base unit of force, which technically would be the correct unit of weight is the Newton (kg*m/s2). The dyne is another 'metric' unit of force (g*cm/s2).
Why is there so much more pressure exerted on the earths core than on the earths surface?
Pressure is the weight of an overlying column of material. The pressure at the core comes from 6400km of overlying rock, which is much denser than air
How far apart should two protons be if the electrostatic force exerted by one on the other is equal to the weight of one electron?
F=mg (it says in the task), where m is mass of electron and g is the gravitational acc. F=kQ2/r2 , where Q is the charge, r is the distance, k is constant Deriving, the expression for distance is: r2=kQ2/mg you should get that r = 5m
What do Neutrons and protons have a weight about 1840 times?
an electron.
Which element has no atomic weight?
all elements have an atomic weight, because all of them have electrons and protons, and every electron and proton have a weight.
Why is the atomic mass generally used to refer to just the number of protons and neutrons?
The weight of an electron is negligible compared to that of protons and neutrons.
Why does the number of electrons have little effect on overall mass of atom?
The protons and neutrons that make up the nucleus are much heavier than an electron. Protons and neutrons are almost the same weight as each other and are just over 1800 times as heavy as an electron. there are the same number of electrons as protons in a neutral atom and typically a number of neutrons as well, so the percentage by weight of electrons is very small.
Does the weight of matter come mostly from protons or electrons?
electron mass = 9.10938188 × 10-31 kilogramsproton mass = 1.67262158 × 10-27 kilogramsProton is a factor of 10^4 times the mass of an electron.
The number of neutrons in an atom can be found by subtracting the atomic number from the?
Atomic weight in atomic mass units = the number of protons + the number of neutrons. The number of protons is your atomic number. Subtract that from the atomic weight for the number of neutrons.
What is the force exerted on an object called?
weight
A measure of the gravitional force exerted on an object.?
According to scientists, a measure of gravitational force that is most likely exerted on an object is the objectâ??s weight.
When calculating the force exerted on the table by a ball which is released over it should the weight of the ball be taken into consideration?
The force exerted on the table by a ball IS the weight of the ball.
What is the difference between a proton electron and a nuetron?
Electrons have virtually no mass, are negatively electrically charged and are to be found orbiting an atoms nucleus in what are called electron shells. Protons and Neutrons are to be found the the atoms nucleus and they have mass. Neutrons have no electrical charge while Protons are positively charged. For every Proton to be found in an atom's nucleus, there is a matching electron in one of the electron shells so that overall the + and - electrical charges balance out. The number of protons in the nucleus of an atom determines what element that atom makes. Neutrons stabilize the atom's nucleolus by separating the + charge protons and their number may vary in an atom - a variation in the number of neutrons in the nucleus with a given number of protons gives rise to atomic isotopes. Neutrons also have no charge. Protons and Neutrons are located in the nucleus. Protons=Positive. Neutrons=no charge. Electron=E-=Negatively charge.
What is a gravitational force exerted on an object by earth?
weight
