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2 years ago

Which items are matter? Battery electricity mobile phone sound light heat

Physics

2 answers:

Margaret [11]2 years ago

8 0

Explanation:

Matter is defined as any object which occupies space and has volume.

A substance that is present in solid, liquid or gaseous state will be considered as a matter.

For example, a chair is a solid substance and hence it is a matter.

Whereas electricity is the flow of charges, sound, light and heat are all due to exchange of energy. Hence, they are not matter.

Thus, we can conclude that out of the given options battery and mobile phone are matter.

algol [13]2 years ago

4 0

BAttery mobile phone

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julia-pushkina [17]

Answer:

Number of days needed = 57

Explanation:

Depth of well = 115 feet

Distance traveled in day = 3 feet up

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When the snail reaches 112 feet up, the next 3 feet up motion on day will make it reach the top.

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2 years ago

There are four charges, each with a magnitude of 2.06 µC. Two are positive and two are negative. The charges are fixed to the co

mars1129 [50]

Answer:

0.208 N

Explanation:

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Distance,d=0.41 m

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Net force, $F_{net}=\sqrt{F^2_1+F^2_3+2F_1F_3cos90^{\circ}}-F_2$

$F_1=F_3=F$

$F_{net}=\sqrt{F^2+F^2+0}-F_2$

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$F_{net}=\frac{\sqrt 2kq^2}{d^2}-\frac{kq^2}{2d^2}=\frac{kq^2}{d^2}(\sqrt 2-\frac{1}{2})$

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2 years ago

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Answer:

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Explanation:

Given:

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