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Jlenok [28]
3 years ago
10

If a 75 W lightbulb operates at a voltage of 120 V, what is the current in the

Physics
1 answer:
zheka24 [161]3 years ago
4 0

Answer:

Option D. 0.63 A

Explanation:

The following were obtained from the question:

P = 75W

V = 120 V

I =?

But,

P = IV

I = P / V

I = 75 / 120

I = 0.63A

The current in the bulb is 0.63A.

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Answer:

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Explanation:

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An open rectangular tank 1 m wide and 2 m long contains gasoline to a depth of 1 m. If the height of the tank sides is 1.5 m, wh
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Answer:

a_y = 4.9\ m/s^2

Explanation:

Given,

Width of rectangular tank, b = 1 m

Length of the tank, l = 2 m

height of the tank, d = 1.5 m

Depth of gasoline on the tank, h = 1 m

\dfrac{dz}{dy}=-\dfrac{1.5-1}{1}

\dfrac{dz}{dy}=-0.5

The differential form with the acceleration

\dfrac{dz}{dy}=\dfrac{-a_y}{a_z + g}

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0.5=\dfrac{a_y}{0 + 9.8}

a_y = 9.8\times 0.5

a_y = 4.9\ m/s^2

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3 years ago
A car with a mass of 833 kg rounds an unbanked curve in the road at a speed of 28.0 m/s. If the
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The energy due to Earth pulling down on an object is called ___.
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Select all the statements regarding electric field line drawings that are correct.
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Answer:

All statement are correct.

Explanation:

1. Electric field lines are the same thing as electric field vectors, electric field are mathematically vectors quantity. These vectors point in the direction in which a positive test charge would move.

2.  Electric field line drawings allow you to determine the approximate direction of the electric field at a point in space. Yes it is correct tangent drawn at any point on these lines gives the direction of electric filed at that point.

3. The number of electric field lines that start or end at a charged particle is proportional to the magnitude of charge on the particle, is a correct statement.

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3 years ago
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