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Mariana [72]
3 years ago
9

Electric energy can be transferred into other types of energy we often experiences transformation of energy in our every day liv

es the example that represents a transformation from electrical to sound energy is
Physics
1 answer:
Damm [24]3 years ago
7 0

An amplifier.

Electrical energy provided to an amplifier is converted into sound energy as it is "fed" or provided to the speaker portion of an amplifier.

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A pure substance has a/an
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Answer:

Element or a compound.

Explanation:

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3 years ago
When you improve your the ability of your muscles to repeatebly exert themselves you are improving your?
Irina-Kira [14]

It is muscular endurance.

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NaBr + CaF2 - NaF + CaBrz<br> es<br> What coefficients are needed to balance the chemical equation?
Dovator [93]

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4NaBr + 2CaF2 ---------- 4 NaF + 2CaBrz

Explanation:

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4 years ago
As in the video, we apply a charge + to the half-shell that carries the electroscope. This time, we also apply a charge – to the
horrorfan [7]

Note: Although the video is not provided in this question, it is not needed to answer the question.

Answer:

B) It does not deflect at all

Explanation:

Since both half shells contain opposite charges, the two shells become electrically neutral when they are brought together and the electroscope discharges. On separating the two half shells again, the needle does not deflect because the half shells have now lost their charges to become neutral.

8 0
3 years ago
A block of aluminum with a volume of 10 cm3 is placed in a beaker of water filled to the brim. Water overflows. The same is done
mihalych1998 [28]

Answer:

a) Both blocks displace the same amount of water.

Explanation:

Specific gravity (S.G.) is a quantity that tells how much and object is submerged on water and is given by:

S.G=\frac{\rho_{block}}{\rho_{fluid}}

with ρ the densities

Density of water is 997 \frac{kg}{m^{3}} and density of aluminum is 2712 \frac{kg}{m^{3}}

So:

S.G=\frac{2712}{997}=2.72

A S.G. value bigger than one means the object is totally submerged so the water displaced is equal to the volume of the cube.

For the lead (density = 11340\frac{kg}{m^{3}}) block we're going to calculate specific gravity in this case:

S.G=\frac{11340}{997}=11.37

Again S.G gravity is bigger than 1, so the lead block is totally submerged too, that implies the volume of water displaced is the volume of the block, that is the same volume as the aluminum block, so a is the correct one.

7 0
3 years ago
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