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Dennis_Churaev [7]
2 years ago
14

A recent survey by a large circulation canadian magazine on the contribution of universities to the economy was circulated to 39

4 people who the magazine decided "are most likely to know how important are universities to the canadian economy". the main problem with using these results to draw conclusions about the general public's perception is:
SAT
1 answer:
madam [21]2 years ago
7 0

The main problem associated with using these results to draw conclusions about the general public's perception is a lack of random selection.

<h3>What is a simple random sample?</h3>

A simple random sample simply refers to a subset of items that are typically selected from a statistical population (larger data set), wherein, each member of the subset has an equal probability of being selected.

Based on this survey by the Canadian magazine, we can infer and logically deduce that the main problem associated with using the aforementioned results to draw conclusions about the general public's perception is a lack of random selection.

Read more on random sample here: brainly.com/question/17831271

#SPJ1

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My answer to this question: You might be able to cope up with future issues more easily.
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What is the meaning to the universe?
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4 years ago
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A point charge q1 = -4. 00 nc is at the point x = 0. 60 m, y = 0. 80 m , and a second point charge q2 = +6. 00 nc is at the poin
Alekssandra [29.7K]

The net electric field is the vector sum of the components of the electric

field produced by the two charges.

The values of the magnitude and direction of the net electric field at the origin (approximate values) are;

  • 131.6 N/C
  • 12.6 ° above the negative x–axis

<h3>How are the net electric field magnitude and direction calculated?</h3>

The possible questions based on a similar question posted online are;

(a) The net electric field at the origin.

The electric field due to charge q₁ is given as follows;

\vec E_{1x} = \mathbf{ \dfrac{1}{4 \cdot \pi \cdot \epsilon_0} \cdot \dfrac{q_1}{\vec{r}^2_2}}

Which gives;

\vec{E}_{1x} =\mathbf{ \dfrac{\left(9 \times 10^9 \, N \cdot m/C^2 \right) \cdot \left(-4 \, nC \times \dfrac{10^{-9}C}{1 \, nC} \right)}{\left(1 \, m \right)^2}} \cdot cos\left(arctan\left(\dfrac{0.8}{0.6} \right) \right) =-21.6 \, N/C

\vec{E}_{1y} = \mathbf{\dfrac{\left(9 \times 10^9 \, N \cdot m/C^2 \right) \cdot \left(-4 \, nC \times \dfrac{10^{-9}C}{1 \, nC} \right)}{\left(1 \, m \right)^2}} \cdot sin\left(arctan\left(\dfrac{0.8}{0.6} \right) \right) = 28.8 \, N/C

Which gives;

\vec{E}_1 = \mathbf{21.6 \, N/C  \cdot \hat x +  28.8 \, N/C \hat y}

\vec{E}_{2x} = \dfrac{\left(9 \times 10^9 \, N \cdot m/C^2 \right) \cdot \left(6.00 \, nC \times \dfrac{10^{-9}C}{1 \, nC} \right)}{\left(1 \, m \right)^2} = 150 \, N/C

Therefore;

\vec  {E} = \left[ 21.6 \, N/C - 150 \, N/C \right] \left( \hat x \right) + \left(28.8 \, N/C \right) \left( \hat y \right)

\vec  {E} = \mathbf{\left( -128.4 \, N/C  \right) \left( \hat x \right) + \left(28.8 \, N/C \right) \left( \hat y \right)}

The magnitude of the net electric field is therefore;

E = \sqrt{(-128.4^2 + 28.8^2)} ≈ 131.6

  • The magnitude of the net electric field at the origin is E ≈<u> 131.6 N/C</u>

(b) The direction of the net electric field at the origin.

  • The \ direction \ is \ arctan \left(\dfrac{28.8}{-128.4} \right) \approx \underline{ 12.6^{\circ}} \ above \ the \ negative \ x-axis

Learn more about electric field strength here:

brainly.com/question/14743939

brainly.com/question/3591946

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Almost every Western European language descended from ____________, an ancient language family.
BigorU [14]

Answer:

Almost every Western European language descended from Indo-European, an ancient language family.

I hope this helped at all.

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Which of the following protocols would secure a tunnel for credential exchange using port 636?
Aneli [31]

The protocols that  would secure a tunnel for credential exchange using port 636 is Lightweight Directory Access Protocol Secure (LDAPS).  

What is LDAPS?

Lightweight Directory Access Protocol Secure (LDAPS) is known to be a protocol that uses a PKI certificate to  be able to secure LDAP connections over the network and it often uses TCP port 636.

Hence, The protocols that  would secure a tunnel for credential exchange using port 636 is Lightweight Directory Access Protocol Secure (LDAPS).  

Learn more about LDAPS from

brainly.com/question/12972416

#SPJ1

8 0
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