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Art [367]
3 years ago
9

What is voltage and current?

Physics
2 answers:
MrMuchimi3 years ago
4 0

Voltage - An electromotive force or potential difference expressed in volts.

Current - A flow of electricity which results from the ordered directional movement of electrically charged particles.

vladimir1956 [14]3 years ago
4 0
Current is a rate at which electric charge flows past a point in a circuit. Voltage is the potential difference in charge between two points in an electrical field.
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A sound wave travels through water.what best describes the direction of the water particles?
bazaltina [42]
The water particles move perpendicular to the source of the sound wave. The water particles move in the same direction as the vibrating source of the sound wave. The water particles move in random patterns because the sound is diffracted in many directions
5 0
3 years ago
HELP !!!!!
prohojiy [21]

Answer:D

Explanation:

6 0
3 years ago
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Olin [163]

No force is required to lift that balloon. In fact, force is required to hold it down, and if you let go, it's up, up, and away.

Since the balloon's density is less than the density of the air around it, it's lighter than the air it displaces, there is a net upward buoyant force acting on it, and it floats up !

3 0
4 years ago
How could you figure out how fast you can run
Arlecino [84]
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7 0
3 years ago
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Find the circumference of a circle whose area is 452.16 square meters. (Use 3.1416 as the value of .)
kakasveta [241]

1) The area of a circle is given by

A=\pi r^2

where r is the radius of the circle. In this problem, we are told that the area is

A=452.16 m^2

so we can rearrange the previous equation to calculate the radius:

r=\sqrt{\frac{A}{\pi}}=\sqrt{\frac{452.16 m^2}{3.1416}}=12.0 m


And now we can find the circumference, by using the formula:

c=2 \pi r=2 \pi (12.0 m)=75.3984 m

Therefore, the correct answer is D. 75.3984 meters.



2) The volume of a cube is given by:

V=L^3

where L is the length of the edge. In this problem, L=6 cm, therefore the volume of the cube is

V=L^3=(6 cm)^3=216 cm^3


and so, the correct answer is A. 216 cu. cm.

5 0
4 years ago
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