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77julia77 [94]
4 years ago
6

What is the internal resistor of the cell in closed circuit?

Physics
1 answer:
Drupady [299]4 years ago
5 0

Generally, the internal resistance of the new battery is small, about 0.2 euros, while the old battery is large, close to 1 euro ,

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A car is moving in uniform circular motion. If the cars speed were to double to keep the car moving with the same radius the acc
Stells [14]

Answer:

<em>The centripetal acceleration would increase by a factor of 4</em>

<em>Correct choice: B.</em>

Explanation:

<u>Circular Motion</u>

The circular motion is described when an object rotates about a fixed point called center. The distance from the object to the center is the radius. There are other magnitudes in the circular motion like the angular speed, tangent speed, and centripetal acceleration. The formulas are:

v_t=w\ r

\displaystyle a_c=\frac{v_t^2}{r}

If the speed is doubled and the radius is the same, then

\displaystyle a_c=\frac{(2v_t)^2}{r}

\displaystyle a_c=4\frac{v_t^2}{r}

The centripetal acceleration would increase by a factor of 4

Correct choice: B.

5 0
3 years ago
What is the difference between current and voltage besides their units of measurement
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"Voltage" is the "pressure" that makes electrons want to leave where they are
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8 0
3 years ago
Which important safety measures should be taken during a hurricane? Select two options.
Roman55 [17]

Answer:

1) move away from the windows.

When abrupt changes in pressure (produced by the hurricane) affect the windows, they can "explode" and be a serious danger for the people.

2) Go to the lowest level of the building.

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6 0
3 years ago
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An element carries a_____charge<br>​
ratelena [41]

Answer:

The charge of an element is equal to the number of protons minus the number of electrons. The number of protons is equal to the atomic number of the element given in the periodic table. The number of electrons is equal to the atomic number minus the charge of the atom.

Explanation:

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3 years ago
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The speedometer of a car moving to the east reads 100 km/h. It
Natali5045456 [20]

Answer:

if they move to their respective sides at the same time then they are moving at exactly the same velocity

so that means they have the same speed and velocity

Explanation:

Pls, mark me as brainliest. Pls be the first person to do so

7 0
4 years ago
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