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2 years ago

1. What is the relationship between the current through each resistor and the current through the battery?

Physics

1 answer:

Anastaziya [24]2 years ago

4 0

Answer:

1.Components in a series circuit share the same current.

2.The sum of individual voltage drop in a series circuit equals that supply voltage.

Explanation:

In a simple circuit, the amount of current is the same flowing through the resistor and the battery as long as it is a series circuit.Components in a series circuit share the same current.

In a series circuit, the total resistance equals the sum of individual resistance

The sum of individual voltage drop in a series circuit equals that supply voltage.

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If vector A =i+2j-k and vec A cross vec B =3i-j+5k. find vec B

postnew [5]

Let B = a i + b j + c k. Then the cross product of A = i + 2j - k with B is

A × B = ( i + 2j - k ) × ( a i + b j + c k )

A × B = a ( i × i ) + 2a ( j × i ) - a ( k × i )

… … … + b ( i × j ) + 2b ( j × j ) - b ( k × j )

… … … + c ( i × k ) + 2c ( j × k ) - c ( k × k )

A × B = 0 - 2a k - a j

… … … + b k + 0 + b i

… … … - c j + 2c i - 0

A × B = (b + 2c) i + (-a - c) j + (b - 2a) k

So we have

3 i - j + 5 k = (b + 2c) i + (c - a) j + (b - 2a) k

which gives us the system of equations,

{ b + 2c = 3

{ -a - c = -1

{ -2a + b = 5

Solve for a, b, and c.

• Eliminate c from the first two equations:

(b + 2c) + 2 (-a - c) = 3 + 2 (-1)

-2a + b = 1

But -2a + b = 5, and 5 ≠ 1, so there is no such vector B that satisfies the cross product!

8 0

2 years ago

Physical Science - 02.05 - Question #3

Reika [66]

Answer:

1. They should not trust this study. 2. Pseudoscience.

Explanation:

Because they drank the water and after 24 hours, they said that it was gone. Head aches go away sooner than that. Another reason is that some people could have lied about having a headache just so they could have the water or their headache could have gone away before they drank the water.

6 0

2 years ago

Water bubbles up through a hot spring at yellowstone national park. What method of heat transfer is this?

LuckyWell [14K]

I believe the answer is CONVECTION.

hope that helps!!!

4 0

3 years ago

Read 2 more answers

Please help on this one someone

Nonamiya [84]

Valence electrons are the electrons in the outermost energy level of an atom — in the energy level that is farthest away from the nucleus.

I think it's A.