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love history [14]
2 years ago
5

Choose the items that help to fully describe voltage.

Physics
1 answer:
Zina [86]2 years ago
8 0

Answer:

the easy way to describe this is to use a light as an example.

Explanation:

Voltage is pretty much the loop used to help use a lightbulb to emit light. Without voltage, we would be unable to use lightbulbs. This applies to much more than a lightbulb, but it's the easiest way to describe how voltage works.

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A roller coaster car (mass = m) is on a track that forms a circular loop (radius = r) in the vertical plane. If the car is to ju
Helen [10]

Answer:v=\sqrt{gr}

Explanation:

Given

mass of coaster car =m

radius of loop is r

At highest point weight Provides the centripetal Force

weight will act downward and centripetal force in upward direction.

centripetal force=\frac{mv^2}{r}

mg=\frac{mv^2}{r}

v=\sqrt{gr}

8 0
3 years ago
Explain the benefits of understanding sound waves properties in real life.
Tems11 [23]

Answer:

The vibrations from sound waves cause our ears to send signals to our brains to create sound. The speed of sound waves will determine the sound's pitch, or how high or low something sounds. Sound waves are important because they allow us to hear important messages and emergency signals to protect ourselves.

Explanation:

I hope this helps :)

4 0
3 years ago
A proton, traveling with a velocity of 4.6 × 106 m/s due east, experiences a magnetic force that has a maximum magnitude of 6.0
Kobotan [32]

Answer:

B = 0.0815 T

since the direction of force is along south so the magnetic field must be upwards

Explanation:

Force on moving charge in magnetic field is given as

F = q(\vec v \times \vec B)

here we know this is force on proton

so we have

q = 1.6 \times 10^{-19} C

F = 6.0 \times 10^{-14} (-\hat j) N

also we know that the velocity of charge is

v = 4.6 \times 10^6 \hat i m/s

now from above formula we have

(6.0 \times 10^{-14}) = (1.6 \times 10^{-19})(4.6 \times 10^6)B

B = 0.0815 T

since the direction of force is along south so the magnetic field must be upwards

6 0
4 years ago
Which type of wire would have the least resistance?
telo118 [61]
The answer is E. Short and thick while cold.
4 0
4 years ago
Compute the density in g/cm^3 of a piece of metal that had mass of 0.485 kg and a volume of 52cm^3
steposvetlana [31]

Answer:

9.3 g/cm³

Explanation:

First, convert kg to g:

0.485 kg × (1000 g / kg) = 485 g

Density is mass divided by volume:

D = (485 g) / (52 cm³)

D = 9.33 g/cm³

Rounding to two significant figures, the density is 9.3 g/cm³.

8 0
3 years ago
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