Answer: The net charge on the sphere is -5.9nC
Explanation:
The electric field outside the conducting solid sphere is given as:
E = (kq)/r^2
Here, q is the net charge on the sphere and r is the distance from the center of the sphere.
The net charge is calculated as follows;
q = Er^2/k
E = 2.7*10^3N/C
r = 14cm = 0.14m
k = 8.99*10^9Nm^2/C^2
q = (2.7*10^3)(0.14^2)/(8.99*10^9)
q = 5.9*10^-9C
= 5.9nC
As the electric field directed radially inward, the net charge on the sphere is negative.
Hence the net charge on the sphere is -5.9nC
Answer:
undergoes a transition to a quantum state of lower energy
Explanation:
When electrons in an atom move to another quantum state, they emit/absorb a photon according to the following:
- If the electron is moving to a higher energy state, it absorbs a photon (because it needs energy to move to a higher energy level, so it must absorb the energy of the photon)
- if the electron is moving to a lower energy state, it emits a photon (because it releases the excess energy)
In particular, the energy of the absorbed/emitted photon is exactly equal to the difference in energy between the two levels of the electron transition:
The correct scientific statement is that force get things going and forces also stop the motion of an object.
<h3>What is force?</h3>
Force is an agent which causes a change in the state of rest or motion of an object.
Force can also be described as a pull or push agent.
Applied force will start an object at rest going or stop the motion of a moving object.
Forces may be contact or non-contact forces.
The misconception in the statement is that an object will run of out of energy.
However, an object never runs out of energy because energy is neither created nor destroyed. Also, an object stopping is due to the fact that other forces are acting to stop its motion.
Therefore, the correct statement is that Force get things going and also stop the motion of an object.
In conclusion, the application of force will result in changes ij the state ad motion of objects.
Learn more about forces at: brainly.com/question/12970081
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