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saul85 [17]
3 years ago
6

What is accuracy Classification of error

Physics
1 answer:
Morgarella [4.7K]3 years ago
6 0

Answer:

The description of the frame of reference is characterized below.

Explanation:

  • Accuracy, as well as regression coefficients, seem to be the new standard measures besides summing up the validity of the developed modeling techniques.
  • Classification accuracy unfortunately due to the presuppositions established by professionals on data sources with such an equitable classification process on supervised learning mostly with completely skewed category apportionment

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What is the difference between condensation and conduction
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Consider a uniformly charged non-conducting semicircular arc with radius r and total negative charge Q. The charge on a small se
Mazyrski [523]

Answer: Magnitude of electric field = 6.77×10^11N/C

Explanation: Electric field= E =KQ/ r ^2

Given:

Total charge Q=53.2nc

Radius 84cm= 0.84m

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3 years ago
Near the surface of Earth, an electric field points radially downward and has a magnitude of approximately 100 N/C. 1) What char
scoundrel [369]

Answer:

-2.50\times10^{-4} \text{ C} or -0.000250 C

Explanation:

The field points downward, which is the direction of a positive charge. In order for the penny to rise, it has to have a negative charge since its direction is opposite that of the field.

To calculate the magnitude of the charge:

The penny is to accelerate upward so it must overcome gravity. Hence, the net force to cause it to accelerate it upward is the difference between the electrostatic force and its weight.

F_N = F_E - W

F_E = F_N + W

F_E = ma + mg

F_E = m(a + g)

F_E = 0.0025(0.19+9.8)

F_E = 0.0025\times9.99

Now, the electric field intensity is given by

F_E = E \times q

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q=\dfrac{F_E}{E}

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