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4 years ago

Is it possible to have motion in the absence of a net force?

Physics

1 answer:

Vsevolod [243]4 years ago

8 0

Answer:

It is impossible...

Explanation:

Under no circumstances this is possible because of the Newton’s 1st law of motion that states that a body shall continue its motion forever except the net fore is zero. When two opposing forces contract each other, they cancel out the action of each other and ultimately the net force become zero. If one body has a slightly more or less force then the net force will not be zero and the net magnitude of force will have a direction of motion.

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Talja [164]

I don't know

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3 years ago

3. Write the numbers given below in scientific notation.

KIM [24]

Answer:
a) 3 * 10^9 ms
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c) 6.4 * 10^6 m
d) 5.48 * 10^5 s
Explanation:
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2 years ago

Identify which method of thermal energy transfer would be fastest through a vacuum, which would be fastest through a gas, and wh

Blizzard [7]

Answer:

vacuum-radiation

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Explanation:

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3 years ago

For resistors in series, the equivalent resistance is _____ of their values.

Stels [109]

Answer: The correct answer is "the same as the sum".

Explanation:

The expression for the equivalent resistance in the series combination of the circuit is as follows;

$R'=R_{1} +R_{2} +R_{3}$

Here, R' is the equivalent resistance, $R_{1},R_{2},R_{3}$ are the resistances.

The expression for the equivalent resistance in the parallel combination of the circuit is as follows;

$\frac{1}{R'} =\frac{1}{R_{1}} +\frac{1}{R_{2}}+\frac{1}{R_{3}}$

Here, R' is the equivalent resistance, $R_{1},R_{2},R_{3}$ are the resistances.

In the series combination of the circuit, the equivalent resistance is more than the equivalent resistance in the parallel combination of the circuit.

In the series combination of the circuit, the same amount of current flows across the resistance but the voltage is different across the resistances.

Therefore, for resistor in series, the equivalent resistance is the same as the sum.

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3 years ago

Will plane flat mirror will make a real or virtual image? Real Virtual

Varvara68 [4.7K]

Image formed by a plane mirror is always virtual which means that the light rays do not actually come from the image but upright and these of the same shape and size are the object it is reflecting.

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3 years ago