<span>1. Seeing broader picture: determining gray areas, overlaps, and exclusions, biases, the primary focus.
2. Bias. Sources may have hidden agenda, personal discrimination conscience or unconscious and a limited view of the short term, long term effects.</span>
The correct answer for the given question would be option A. The forces that are present in the given situation above which is an elevator rising at a constant speed, are gravity and tension. Gravity is the force that pulls all matter together. Tension is the <span>pulling force transmitted axially. Hope this is the answer that you are looking for.</span>
Answer:
atoms have no overall charge. this is because they contain equal numbers of positive protons and negative electrons
Answer:
The highest energy level number (1 through 7) for the electrons in an atom corresponds to the period (or row) in the periodic table to which that atom belongs. Because there are 7 periods in the table, there are 7 energy levels. For example, hydrogen (H) is in the first period, so it has only one energy level.
Explanation:
(a) It is known that relation between energy and mass is as follows.
where, E = energy
m = mass
c = speed of light = 
m/s
As it is given that mass is 
kg. So, putting the given values into the above formula as follows.
= 
= 
Therefore, we can conclude that the energy produced by the reaction between one electron and one positron is .
(b) When gamma ray photons are produced then they will have the same frequency. Relation between energy and frequency is as follows.
E = 
..... (1)
where, h = plank's constant = 
= frequency
Also, ........ (2)
Hence, equating equations (1) and (2) as follows.
= 
So,
=
= 
Thus, we can conclude that the frequency is .
