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4 years ago

What would increase the resistance of a copper wire?

1 answer:

3 0

R = ρl/A

From the equation above R = Resistance, l = length, A = Cross Sectional Area of wire.

From the equation, it can be seen that R would increase if the wire's area is reduced.

If the area of the wire is reduced, means the same thing as:

<span>A. decreasing the wire’s thickness</span>

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The case whereby sound waves are heard at either a higher or lower pitch due to an object's motion is called:

omeli [17]

Doppler effect!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! ! ! ! ! ! ! ! ! ! !

5 0

3 years ago

Read 2 more answers

What electric force would a stationary 3.8 C charge experience if it were far away from any other charges

MAVERICK [17]

Answer:

The electric force will be 0 N

Explanation:

From the question we are told that

The magnitude of the charge is $q_1 = 3.8 \ C$

Generally from Coulombs law the electric force between two charges is mathematically represented as

$F = \frac{ k * q_1 q_2 }{r^2}$

Here r is the distance of separation between that two charges.

Now from the question we are told that the charge is far away from any other charge hence we can say that the distance between the charge and any other charge is $r = \infty$

$F = \frac{ k * 3.8 * q_2 }{\infty^2}$

=> $F =0 \ N$

Hence the electric force will be 0 N

3 0

3 years ago

Is bleach heterogeneous

irga5000 [103]

No, bleach is not heterogeneous. Bleach is actually homogeneous.
Heterogeneous is if it the same throughout.
Homogeneous is if it is different (has chunks and clumps of different materials)

6 0

3 years ago

When waves of equal amplitude from two sources are in phase when they interact, it is called ________.?

8090 [49]

The answer is constructive interference. At the point when two waves meet such that their peaks line up together, then it's called productive obstruction. The subsequent wave has a higher adequacy. In dangerous obstruction, the peak of one wave meets the trough of another, and the outcome is a lower add up to adequacy.

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3 years ago

1. A 46000N helicopter feels a net force of 9200N. What litt force is exerted by the air on the propellers?

Lina20 [59]

Answer:

Force exerted by the air on the propellers = 46000 - 9200

= 36800 N

Hope this helps!

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4 years ago