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VMariaS [17]
3 years ago
8

The force between two magnetic poles varies directly with the distance of separation. True False

Physics
2 answers:
Doss [256]3 years ago
7 0
I believe it is True....hope this helps!
max2010maxim [7]3 years ago
3 0
This is true because they are the same type of pole.

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Hernando builds a simple DC series circuit with a standard D-cell battery and uses an ammeter to determine that the total curren
HACTEHA [7]

Answer: I = 9.0 A

Explanation: <u>Ohm's</u> <u>Law</u> is defined as the relationship between voltage and current: in a circuit, the voltage accross a conductor is directly proportional to the current.

The constant of proportionality is Resistance, whose unit is ohm (Ω).

so, Ohm's Law is

V = R.I

It is asked for the current, so, rearraging:

I=\frac{V}{R}

When added two more batteries, the voltage of the circuit triples:

V_{final}=3V_{initial}

Since they are directly proportional, if voltage triples, so does current:

I_{final}=3I_{initial}

I_{final}=3(3.0)

I_{final}= 9.0

The new current, when driven by 3 batteries is 9.0 A.

3 0
3 years ago
How much force is required to accelerate a .6 kg object at 5 m/s^2
vodomira [7]

Answer:

.

» 30 N

Explanation:

<u>Given</u> :

Mass → m → 6kg

Acceleration → a →

5 {ms}^{ - 2}

<u>To</u><u> </u><u>find</u> :

The formula for force

F = m • a

F = 6 • 5

F = 30 N

7 0
3 years ago
The sound level in a certain seat at the movie theater is higher than the level in the surrounding seats. Which wave interaction
Grace [21]

Answer: constructive interference

Explanation: plz mark Brainly

6 0
3 years ago
Read 2 more answers
If two persons do the same amount of work , they may have different power ? why ? ​
iris [78.8K]

Hey there mate :)

Even if two persons are given the same work load, the speed of the work done gets different by the energy of those persons.

No one is sure that he/she can complete the work within the time. He may or may not.

Also, the physical characteristics makes the work different. If one person has so much power to work all day, the other person may not have.

Therefore, <em>even if two persons do the same amount of work , they may have different power</em><em>.</em>

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What type of volcano forms when there is a series of violent and gentle eruptions resulting in layering of lava and ash?
Andre45 [30]
Ciner forms when there is a series of violent and gentle eruptions resulting in layering of lava and ash
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3 years ago
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