Answer:
The original concentration of ethanol is 16%(v/v)
Explanation:
concentration before dilution, C1 = ?
Concentration after dilution, C2 = 0.32% (v/v)
Volume before dilution, V1 = x
Volume after dilution, V2 = 50x
From the dilution principle
C1V1 = C2V2
(C1) * x = (0.32) * 50x
C1 = (16x)/x
C1 = 16%(v/v)
Answer:
28.57 Mpc
Explanation:
This question is going to be solved by applying Hubble's Law.
This Hubble's Law is actually an observation in physical cosmology. This observation makes it clear that galaxies are moving away from the Earth, and are doing so at speeds proportional to their distance. This essentially means that the farther they are from the Earth, the faster they are moving away from Earth.
It is represented by this formula
v = H(0)D, where
v = speed
H(0) = Constant of proportionality, or otherwise, Hubble's constant.
D = Distance to a galaxy
Applying the given parameters to the formula, we have
v = H(0).D
D = v / H(0)
D = 2000 / 70
D = 28.57 Mpc
Answer:
A. They can provide an accurate picture of someone’s personality.
C. They can be used to target employee training.
E. They may lead to lower turnover rates.
Explanation:
Answer:
You can describe the<u> motion </u>of an object by saying it is moving in a straight line or is curved around another object. You can also describe where an object is by its <u> position </u> in relation to another object. The second object acts as a<u> reference</u> point. When an object changes position, you know it has motion. Motion can also be described by finding an object's <u>speed </u>or how fast or slow it moves in a certain amount of time. In addition, you can describe the object's speed AND direction together. This is called <u>velocity</u>
Explanation:
In the given answer-
<u>Motion</u> is defined as - the change in the movement or position of any object or body.
<u>Position</u> is said to be a place or somewhere or a location where any object or body is particularly placed/located or put on.
<u>Reference poin</u>t is a fixed point with regards to which any object or body changes its position. It is also called reference origin.
<u>Speed</u> is defined as the rate of any object covering certain distances. It is a scaler quantity (quantity which depends upon only magnitude).
<u>Velocity</u> is defined as the rate of speed per unit time. It is a vector quantity (quantity depending upon both magnitude and direction ).
The magnitude of force on the elevator cable that would be needed to lower the cat/elevator pair is 198 Newton.
<u>Given the following data:</u>
- Acceleration = 2
To determine the magnitude of force on the elevator cable that would be needed to lower the cat/elevator pair, we would apply Newton's Second Law of Motion:
First of all, we would calculate the total mass of the cat/elevator pair.
Total mass = 99 kilograms
Mathematically, Newton's Second Law of Motion is given by this formula;
Substituting the given parameters into the formula, we have;
Net force = 198 Newton
Read more here: brainly.com/question/24029674
