A ground-fault circuit interrupter shuts down a circuit if it?

Just need some help trying to figure out some of these practice questions. Please and thank you!!!

dangina [55]

Answer:

10. 3

11. 1

12. 3

Explanation:

10. Everybody has different things that they find stressful. Stressful situations are associated heightened anxiety, fear, and worry. Different situations and life events can trigger stress. Public speaking is a good example of a stressful situation, as it often makes people nervous and uncomfortable. The other options are not usually associated with stress

11. After division of a cell containing 46 chromosomes (diploid), the genetic content is divided equally between 2 cells, producing two daughter cells with 23 chromosomes (haploid). Sex cells are the only cells in the body that are haploid. At fertilisation, 2 haploid cells come together to form a diploid cell.

12. After the whales died, the bones settled in the ocean sediments that moved with the changing land. The bones would not be preserved after animal activity or floating in the ocean. Options 4 and 5 do not explain how the whale bones ended up out of the water.

3 0

4 years ago

Helppppppppppppppp asappppppppppppp

vichka [17]

The answer to the problem b.

8 0

3 years ago

A fission reaction is one in which the weaker electrostatic repulsion force wins out over the ___________ nuclear force and, as

natulia [17]

The answer is b. Strong

6 0

4 years ago

Read 2 more answers

Consider the differential equation

Zielflug [23.3K]

Yp(t) = A1 t^2 + A0 t + B0 t e(4t)

=> y ' = 2A1t + A0 + B0 [e^(4t) +4 te^(4t) ]

   y ' = 2A1t + A0 + B0e^(4t) + 4B0 te^(4t)

=> y '' = 2A1 + 4B0e(4t) + 4B0 [ e^(4t) + 4te^(4t)

   y '' = 2A1 + 4B0e^(4t) + 4B0e^(4t) + 16B0te^(4t)

Now substitute the values of y ' and y '' in the differential equation:

<span>y′′+αy′+βy=t+e^(4t)

</span> 2A1 + 4B0e^(4t) + 4B0e^(4t) + 16B0te^(4t) + α{2A1t + A0 + B0e^(4t) + 4B0 te^(4t) } + β{A1 t^2 + A0 t + B0 t e(4t)} = t + e^(4t)

Next, we equate coefficients

1) Constant terms of the left side = constant terms of the right side:

2A1+ 2αA0 = 0 ..... eq (1)

2) Coefficients of e^(4t) on both sides

8B0 + αB0 = 1 => B0 (8 + α) = 1 .... eq (2)

3) Coefficients on t

2αA1 + βA0 = 1 .... eq (3)

4) Coefficients on t^2

βA1 = 0 ....eq (4)

given that A1 ≠ 0 => β =0

5) terms on te^(4t)

16B0 + 4αB0 + βB0 = 0 => B0 (16 + 4α + β) = 0 ... eq (5)

Given that B0 ≠ 0 => 16 + 4α + β = 0

Use the value of β = 0 found previously

16 + 4α = 0 => α = - 16 / 4 = - 4.

Answer: α = - 4 and β = 0

3 0

4 years ago

A person is standing on a level floor. His head, upper torso, arms, and hands together weigh 496 N and have a center of gravity

Mandarinka [93]

Answer: 1.09 m

Explanation:

Given

Weight of the body, W1 = 496 N

Weight of his upper legs, W2 = 199 N

Weight of his lower legs, W3 = 81.2 N

Center of gravity of the body, y1 = 1.37 m

Center of gravity of the upper legs, y2 = 0.711 m

Center of gravity of the lower legs, y3 = 0.284 m

Center of gravity relative to the floor, y(f) = ?

y(f) = (W1y1 + W2y2 + W3y3) / (W1 + W2 + W3), substituting the values, we have

y(f) = [(496 * 1.37) + (199 * 0.711) + (81.2 * 0.284)] / (496 + 199 + 81.2)

y(f) = (679.52 + 141.489 + 23.0608) / 776.2

y(f) = 844.0698 / 776.2

y(f) = 1.09 m

3 0

3 years ago