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Burka [1]
4 years ago
13

When a wire is made smaller, the resistance increases. Which happens to the electric current?

Physics
1 answer:
Katarina [22]4 years ago
3 0
Any time the resistance in a circuit increases, for any reason, the
current in the circuit decreases, unless the voltage is increased
to compensate for the greater resistance.
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What is the public storm warning signal that carries winds of 30 to 60 km/hr and can cause no damage to very light damage
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Answer:

I know u need this

Explanation:

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7 0
3 years ago
How many newtons does a 5-kg backpack weigh on Earth?
zvonat [6]
A 5kg backpack will weigh 49 newtons on earth
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3 years ago
Acceleration involves a change in __________.
uysha [10]

"Acceleration" is any change in speed or direction of motion ...
slowing down, speeding up, or curving away from a straight line.

You and I, and all other students of Physics, must re-educate
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7 0
3 years ago
Read 2 more answers
In uniform circular motion, which of the following are constant:Check all that apply.Check all that apply.the speed is constantt
AlladinOne [14]

Answer:

The speed, magnitude of the velocity, magnitude of the angular velocity, magnitude of the centripetal acceleration, magnitude of the net force and direction of the angular velocity are constant.

Explanation:

In uniform circular motion we have a centripetal acceleration of constant magnitude but changing direction (since it points to the center of the circle from the object). The same goes for the net (centripetal) force since F=ma. This makes the magnitude of the velocity (speed) constant but its direction changes, although keeping spinning in the same direction, which makes its angular velocity constant in both magnitude and direction.

3 0
4 years ago
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From Doppler shifts of the spectral lines in the light coming from the east and west edges of the Sun, astronomers find that the
Gala2k [10]

Answer:

T= 37 day

Explanation:

To solve this exercise we will use the definition of angular velocity as the angular distance, which for a full period is 2pi between time.

    w = T / t

The relationship between angular and linear velocity is

    v = w r

    w = v / r

We substitute everything in the first equation

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Let's reduce to the SI system

    V = 2 km / s (1000m / 1km) = 2 10³ m / s

    r= R = 6.96 10⁸ m

Let's calculate

    t = 2π 6.96 10⁸/2 10³

    t = 3.2 10⁶ s

    T = t = 3.2 10⁶ s ( 1h/3600s) (1 day/24 h)

    T= 37 day

3 0
3 years ago
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