3 years ago

When is a body said to be motion (movement )?

Physics

1 answer:

Stels [109]3 years ago

3 0

A body is said to be in motion when it's position changes continuously.

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A. l1 =20 A and l2 =24 A

Masteriza [31]

Answer:

when u find out pls lmk! i have the same question and I've been stuck for a while lol

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3 years ago

A kettle is rated at 1 kW, 220 V. Calculate the working resistance of the kettle.

Anna [14]

Explanation:

Power of electric kettle, P = 1 kW

Voltage, V = 220 V

(a) Electric power is given by the formula as follows :

$P=\dfrac{V^2}{R}$

R is resistance

$R=\dfrac{V^2}{P}\\\\R=\dfrac{(220)^2}{10^3}\\\\R=48.4\ \Omega$

(b) When connected to a 220 V supply, it takes 3 minutes for the water in the kettle to reach boiling point.

Energy supplied is given by :

$E=P\times t$

P is power, $P=\dfrac{V^2}{R}$

$E=\dfrac{V^2}{R}t\\\\E=\dfrac{(220)^2}{48.4}\times 180\\\\E=180000\ J\\\\E=180\ kJ$

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You're fishing for "polarization".

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4 years ago

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Explain how the Indian and Asian plates met and the kind of boundary that formed on their meeting. Describe what happened as a r

ANEK [815]

Answer:

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Explanation:

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Svetach [21]

Answer:

Explanation:

because if you add one to a one it would end up being 2 <3

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