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pickupchik [31]
3 years ago
6

Look at the circuit diagram.

Physics
2 answers:
Nikitich [7]3 years ago
8 0

Answer: The correct option is B.

Explanation:

In the given circuit, the circuit is closed as the battery is connected to the circuit and the current is flowing.

The two bulbs connected in the circuit are in series combination as the same amount of current is flowing in the bulbs.

In the parallel combination, the amount of current flowing in the circuit across resistance is different.

Therefore, the provided circuit is closed series circuit.

Fiesta28 [93]3 years ago
6 0

B. closed series circuit because the resistors are one after the other and there is no open switch.


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In general it is best to conceptualize vectors as arrows in space, and then to make calculations with them using their component
JulijaS [17]

Answer:

The calculated vectors are:

\vec{A}-\vec{B}=(3,-5,-4)

\vec{B}-\vec{C}=(-5,4,0)

-\vec{A}+\vec{B}-\vec{C}=(-6,4,3)

3\vec{A}-2\vec{C}=(-3,-2,-11)

Explanation:

To operate with vectors, you sum or rest component to component. To multiply scalars with vectors, you distribute the scalar with each component of the vector. These are the following rules you must apply in these cases:

\vec{V}+\vec{W}=(V_1,V_2,V_3)+(W_1,W_2,W_3)=(V_1+W_1,V_2+W_2,V_3+W_3) (1)

\vec{V}-\vec{W}=(V_1,V_2,V_3)-(W_1,W_2,W_3)=(V_1-W_1,V_2-W_2,V_3-W_3) (2)

\alpha\cdot\vec{V}=\alpha\cdot(V_1,V_2,V_3)=(\alpha\cdot V_1,\alpha\cdot V_2,\alpha\cdot V_3) (3)

The operations in these cases are:

\vec{A}-\vec{B}=(1,0, -3)-(-2,5,1)=(3,-5,-4)

\vec{B}-\vec{C}=(-2,5,1)-(3,1,1)=(-5,4,0)

-\vec{A}+\vec{B}-\vec{C}=-(1,0, -3)+(-2,5,1)-(3,1,1)=(-6,4,3)

3\vec{A}-2\vec{C}=3(1,0, -3)-2(3,1,1)=(3,0, -9)-(6,2,2)=(-3,-2,-11)

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2. The correct answer is D. The terrestrial<span> planets were formed by </span>accretion<span> of material that was denser in its constitution. This is the reason why they remained closer to the sun - they were heavier than gas, that is the material the Jovian planets are mostly made of.</span><span />
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