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vredina [299]
3 years ago
11

8. Water behind a dam, a moving car, and electricity moving in a circuit all are examples of

Chemistry
1 answer:
mote1985 [20]3 years ago
7 0

Answer:

a. Help accomplish a job

Explanation:

Energy is defined as the ability to do work. It is the ability to get a job done.

Where energy is deficient, no job or work can be done.

  • In a water behind a dam, potential energy is stored.
  • Potential energy is due to the position of a body.
  • A moving car has kinetic energy which the energy due the motion of a body.
  • Electrical energy is used to carry the currents in a circuit round about.
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Answer:

FALSE

Since 0.385 < 0.526, the value for week 3 is accepted.

Explanation:

Qexp = (|Xq - Xₙ₋₁|)/w

where Xq is the suspected outlier; Xₙ₋₁ is the next nearest data point; w is the range of data

First, the data are arranged in decreasing order, from highest to lowest:

3. 5.6

2. 5.1

8. 5.1

1. 4.9

6. 4.9

5. 4.7

7. 4.5

4. 4.3

Xq = 5.6; Xₙ₋₁ = 5.1; w = 5.6 - 4.3 = 1.3

Qexp = (|5.6 - 5.1|)/1.3 = 0.385

From tables, at 95% confidence level, for n = 8, Qcrit = 0.526

Since 0.385 < 0.526, the value for week 3 is accepted.

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