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Irina18 [472]
3 years ago
15

Which vector has a y-component with a length of 4?

Physics
1 answer:
mihalych1998 [28]3 years ago
6 0

ANSWER


The correct answer is D.


EXPLANATION


The y-component of the vector, is the same as the vertical component of the vector.


We can see from the graph that each box in the grid is one unit.



The component of vector a is


\binom {2}{4}



We count 4 boxes along the positive y- axis to get the y-component of vector a.


See graph in attachment.




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Answer:

1. 12 V

2a. R₁ = 4 Ω

2b. V₁ = 4 V

3a. A = 1.5 A

3b. R₂ = 4 Ω

4. Diagram is not complete

Explanation:

1. Determination of V

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2. We'll begin by calculating the equivalent resistance. This can be obtained as follow:

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Equivalent resistance (R) = 12 Ω

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Current (I) = 1 A

Resistor 1 (R₁) = 4 Ω

Voltage 1 (V₁) =?

V₁ = IR₁

V₁ = 1 × 4

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Since the connections are in series arrangement, the same current will flow through each resistor. Thus, the ammeter reading can be obtained as follow:

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Voltage 1 (V₁) = 6 V

Current (I) =?

V₁ = IR₁

6 = 4 × I

Divide both side by 4

I = 6 / 4

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Divide both side by 1.5

R₂ = 6 / 1.5

R₂ = 4 Ω

4. The diagram is not complete

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