Answer:
50.67
Explanation:
L = 4 m
Let the mass of small length dx is dm.
So, dm = ρ(x) dx
Integrate on both the sides within proper limits
m = 40 + 32 / 3 = 152 / 3 = 50.67
Kinetics, branch of classical mechanics that concerns the effect of forces and torques on the motion of bodies having mass. *brainliest and thanks please*
Answer:
Explanation:
The work done by the electrostatic force is
where F can be calculated by Coulomb's Law:
We can express this equation by the variables given in the question.
Electric field is denoted as E.
The distance, x, is given as L. If B is greater than A, the work done is positive. Else, work is negative.
In semiconductors, you can change how easily electrons move through them. That is option 2.
<h3>What are semiconductors?</h3><h3 />
Semiconductors is defined as those substances that possess the characteristics of both metal and non metal.
Examples of semiconductors include the silicon, germanium, and gallium arsenide elements.
The semiconductors are able to conduct electricity through the presence of electrons and holes in them.
The movement of these electrons can be controlled through the addition of impurities to the semiconductor material.
Therefore, in semiconductors, you can change how easily electrons move through them.
Learn more about semiconductors here:
brainly.com/question/1918629