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melamori03 [73]
2 years ago
14

4. A lamp is connected to a 230 V mains supply. A current of 4 A flows through the

Physics
2 answers:
White raven [17]2 years ago
4 0

Explanation:Example

A 500 W television set is switched on for 4 hours. Calculate the energy transferred.

500 W = 500/1000 = 0.5 kW

energy transferred = power × time

= 0.5 × 4

= 2 kWh

sasho [114]2 years ago
3 0

Answer:

I= Q ÷ T

Explanation:

I: Current measured in amperes

Q: Charge flow measured in coulombs

T: Time measured in seconds

I hope you find this helpful.

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Answer:

M.A = load/ effort

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2 years ago
A position vector with magnitude 10 m points to the right and up. its x-component is 6.0 m. part a what is the value of its y-co
lidiya [134]

The position vector can be transcribed as:

A<span> = 6 i + y j                           </span>

i <span>points in the x-direction and j points in the y-direction.</span>

The magnitude of the vector is its dot product with itself:

<span>|A|2 = A·A</span>

<span>102  = (6 i + y j)•(6 i+ y j)            Note that i•j = 0, and  i•i  = j•j = 1 </span>

<span>100  = 36 + y2       </span>

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<span>get the square root of 64 = 8</span>

<span>The vertical component of the vector is 8 cm.</span>

3 0
2 years ago
Determine the amount of potential energy of a 4.2 kg book that is placed on a shelf with a height of 0.9 meters. Round your answ
swat32

Answer:

that is a correct answer maybe .

5 0
3 years ago
In the combined gas law, if the volume is decreased, what happens to the temperature if pressure remains constant?
erastovalidia [21]
A. The temperature decreases.
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Pick the correct answer
Marat540 [252]

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