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pantera1 [17]
3 years ago
11

If an equation is dimensionally correct, does this mean that the equation must be true? If an equation is not dimensionally corr

ect, does this mean that the equation cannot be true? How is dimension analysis used as a check on the plausibiity of derived equations and computations? How does this knowledge help you to understand and characterize particular phenomenon? Explain.
Physics
1 answer:
tatiyna3 years ago
3 0

Answer:

Explanation: the explanation goes as follow;

  • If an equation is dimensionally correct, does this mean that the equation must be true?

answer: A dimensionally correct equation deosn't make the equation true. It is always possible to construct an arbitrary meaningless equation that satisfies the dimensional analysis. we can observe this in different physical quantities that have the same dimensional formula, by inserting a wrong physical parameter into an equation, it may turn out as dimensionally correct, but it wont have any physical meaning.

  • If an equation is not dimensionally correct, does this mean that the equation cannot be true?

answer:  A dimensionally incorrect equation necessarily implies that the equation is wrong.

  • How is dimension analysis used as a check on the plausibiity of derived equations and computations?

answer: dimensional analysis is a very strong tool that is used to check the trustworthiness of  a derived equation. It helps to compare the dimensions of the output variable from an equation against the true dimensions of the output variable. If both of them are not same, the equation/computation/derivation is incorrect.

  • How does this knowledge help you to understand and characterize particular phenomenon?

answer:  the knowledge of dimensional analysis helps in understanding which variables are necessary for defining a process.

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Write down at least 3 equations as you solve them
Step2247 [10]

Answer:

3+7=          7x3=                                21➗7=          

Explanation:

3+7= 10              7 8 9 10

7x3= 21                  7 14 21

21➗7=3        21 14 7

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4 0
2 years ago
15. A locomotive moved 18.0 m [W] in a time of 6.00 s and stopped. After stopping, the
mariarad [96]

Answer:

Distance = 30m

Displacement = 6m W

Explanation:

Given the following:

Movement 1 = 18m W

Movement 2 = 12m E

Diatance is a scalar quantity with only magnitude and no direction. That is, in Calculating the distance moved by the locomotive, the direction of travel or movement of the object is not considered. It only measures the total amount of movement made during the Time of motion.

Therefore, total distance traveled equals :

Movement 1 + movement 2

18m + 12m = 30m

B) Displacement also measures the movement made by an object. However, Displacement is a vector quantity and therefore, considers both magnitude and direction of travel of the object. Therefore, it measures the overall change in position of the object from its starting position.

Therefore, Displacement of the locomotive equals:

18m W - 12m E = 6m E

3 0
3 years ago
Select the best answer.
KIM [24]

Answer:

C. Mantle

Explanation:

The Mantle is a thick layer of solid and partially melted rock

7 0
2 years ago
What does not contain a lens? <br>A.binoculars<br>B.a mirror<br>C. an eye<br>D. a camera
UNO [17]
That would be answer B
hope this helped you
5 0
3 years ago
Electricity is distributed from electrical substations to neighborhoods at 13000 V. This is a 60 Hz oscillating (AC) voltage. Ne
Levart [38]

Answer:

the number of turns in the primary coil is 13000

Explanation:

Given the data in the question;

V₁ = 13000 V

V₂ = 120 V

N₁ = ?

N₂ = 120 turns

the relation between the voltages and the number of turns in the primary and secondary coils can be expressed as;

V₁/V₂ = N₁/N₂

V₁N₂ = V₂N₁

N₁ = V₁N₂ / V₂

so we substitute

N₁ = (13000 V × 120 turns) / 120 V

N₁ = 1560000 V-turns / 120 V

N₁ = 13000 turns

Therefore, the number of turns in the primary coil is 13000

8 0
3 years ago
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