Answer:
d) v1 = v2 = v3
Explanation:
This can be answered using conservation of energy. We calculate the mechanical energy E=K+U (sum of kinetic and gravitational potential energies) at the original and final points, and impose they are equal.
At the original point we have, for the three balls:

At the final point we have, for the three balls:

Since we have
, and
is the same for all balls, then
is the same for all balls, which means that
, the final velocity, is the same for all balls.
Explanation:
According to the energy conservation,



= 
= 
v = 
= 
Formula for distance from the orbit is as follows.
S = 
= 
= 
Now, relation between time and distance is as follows.
T = 

or, f =
=
= 
Thus, we can conclude that the orbital frequency for an electron and a positron that is 1.50 apart is
.
Answer: D
Explanation:
Frank’s Furniture trains all of its employees to use computers is an example of an improvement in human capital.
The magnitude of the electric field inside the picture tube is 998.476 kN/C.
<h3>What is an electric field?</h3>
It is an area in the space where a charged particle experiences a force. It can be calculated by the formula,

Where,
= electric field produced
= charge = 
= distance = 
= Coulomb's constant = 
Put the values in the formula,

Therefore, the magnitude of the electric field inside the picture tube is 998.476 kN/C.
Learn more about the electric field:
brainly.com/question/3783640
<span>Glycolysis. In glycolysis, glucose—a six-carbon sugar—undergoes a series of chemical transformations. In the end, it gets converted into two molecules of pyruvate, a three-carbon organic molecule.
Pyruvate oxidation. Each pyruvate from glycolysis goes into the mitochondrial matrix—the innermost compartment of mitochondria. </span>