Question
In: Physics
1) Find the force between an electron and proton separated by a distance of 5*10^-11 m...
1) Find the force between an electron and proton separated by a distance of 5*10^-11 m (this is the setup of the so-called Bohr model of an atom)
2) An object has a total of 10^12 protons in it. How many electrons are in it if it has a net charge of -1C?
3) What electric field is needed (and what direction should it point) if I want to suspend an electron on earth's surface? (counteract the force of gravity on it)
Solutions
Expert Solution
answer :
(1) 92.16 × 10-9 N
(2) 62.5 × 1017
(3) 55.798 × 10-12 N/C.
genius_generous answered 2 years agoRelated Solutions
In a hydrogen atom, a proton is separated from an electron by an average distance of...
In a hydrogen atom, a proton is separated from an electron by an
average distance of about 5.3 10-11 meters.
Use the information below to calculate the force of attraction by
the electron on the proton.
Electron Mass = 9.11 10-31 kg
Proton Mass = 1.67 10-27 kg
Elementary Charge = 1.602 10-19 C
Coulomb's Constant (k) = 8.99 109
Nmm/CC
Avagadro's Number = 6.02 1023 atoms/mole
A proton is on the left and an electron is on the right and are separated...
A proton is on the left and an electron is on the right and are
separated by 4.0 E-6 m apart.
a. Find the magnitude and direction of the
force on the proton.
b. Find the magnitude and direction of the
force on the electron.
c. Find the magnitude and direction of the
acceleration of the proton.
d. Find the magnitude and direction of the
acceleration of the electron.
1)What is the force between two equal charges (1 Coulomb) that are separated by a distance...
1)What is the force between two equal charges (1 Coulomb) that
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one of the charges in problem #1 is reduced to half of its original
value. How does the new force compare to the original force?
An electron in a hydrogen atom orbits the proton at a radius of 5.29 x 10-11...
An electron in a hydrogen atom orbits the proton at a radius of
5.29 x 10-11 m. Considering the proton to be at the
origin, and answering to 2 decimal places:
(a) What is the electric field due to the proton at the position
of the electron? (answer in terms of r, theta, and phi).
(b) What is the resultant force on the electron? (answer in
terms of r, theta, and phi).
(c) What is the magnitude of the resulting...
Twochargesof−5×10−9 Cand−2×10−9 C are separated by a distance of 38 cm. Find the equilibrium position for...
Twochargesof−5×10−9 Cand−2×10−9 C are separated by a distance of
38 cm. Find the equilibrium position for a third charge of +1.3 ×
10−8 C by identifying its distance from the first charge q1. Answer
in units of cm.
ONLY ANSWER THIS IF YOU KNOW HOW TO DO THIS!
Twochargesof−5×10−9 Cand−2×10−9 C are separated by a distance of 38 cm. Find the equilibrium position for...
Twochargesof−5×10−9 Cand−2×10−9 C are separated by a distance of
38 cm. Find the equilibrium position for a third charge of +1.3 ×
10−8 C by identifying its distance from the first charge q1. Answer
in units of cm. net electric force on the third point charge is
zero. Where along the y−axis is this charge located? Answer in
units of m.
Suppose that an electron and a proton are placed at a distance of 1.2nm away from...
Suppose that an electron and a proton are placed at a distance
of 1.2nm away from each other (about 10 times the radius of a
hydrogen atom).
(a) How much is the Coulomb force between the electron and the
proton?
(b) Under this Coulomb force alone, how much is the acceleration
of the electron towards the proton (in m/s2 )? (Google for the
missing information.)
(c) If the electron is instead placed on the edge of the
supermassive black hole...
The magnitude of the electric force between two positively charged particles separated by a distance of 3m is 90N.
The magnitude of the electric force between two positively
charged particles separated by a distance of 3m is 90N. At this
separation, the electric potential energy of the two-charge
systemGroup of answer choices810J.270J.90J.30J.10J.
Consider an electron at a distance of 0.053 nm from a proton. Take the origin of...
Consider an electron at a distance of 0.053 nm from a proton.
Take the origin of coordinates to be at the position of the proton.
Let the electron be undergoing uniform circular motion.
A) Find the time-rate-of-change of the angular momentum of the
electron.
B) Find the kinetic energy of the electron.
C) Find the potential energy of the electron.
D) Find the total energy of the electron.
An average force of 10 N is exerted on a wagon through a 5.0 m distance....
An average force of 10 N is exerted on a wagon through a 5.0 m
distance. The wagon has a mass of 2.0 kg.
a) What kinetic energy will the wagon gain?
b) What will be the final speed of the wagon?
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