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azamat
3 years ago
14

A 6.00 μF capacitor that is initially uncharged is connected in series with a 4.00 Ω resistor and an emf source with EMF = 60.0

V and negligible internal resistance. . At the instant when the resistor is dissipating electrical energy at a rate of 300 W, how much energy has been stored in the capacitor?

Physics
1 answer:
vesna_86 [32]3 years ago
5 0

Explanation:

Below is an attachment containing the solution.

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a person dives off the edge of aa cliff 33m above the surface of the sea. assuming that air resistance is negligible, how long d
USPshnik [31]

Answer:

The time is t = 2.595 \  s

The speed is v = 25.43 \ m/s

Explanation:

From the question we are told that

    The height of the cliff is  h =  33 \  m

 Generally from kinematic equation we have that

       h  =  ut + \frac{1}{2} gt^2

before the jump the persons initial velocity is  u =  0 m/s

 So

        33   =  0 * t + \frac{1}{2} 9.8 * t^2

=>      t = 2.595 \  s

Generally from kinematic equation

     v= u + gt

=>  v= 0 + 9.8 * 2.595

=>  v = 25.43 \ m/s

3 0
3 years ago
Give reasons.<br>a) Sunlight does not fall on the ground where cloud forms shadow.​
Viefleur [7K]

Answer:

Sunlight passing through a cloud is scattered in various directions. Some photons eventually find their way out the bottom of the cloud, some are reflected upwards, and some are absorbed, serving to warm the cloud. Since only a fraction of the light makes it to ground level, you have a shadow.

Explanation:

Hope it helps you

4 0
3 years ago
Energy can do blank or bring about change
Mrac [35]

Work

Explanation:

Energy can do work or bring about change.

Energy is simply the ability to do work. When work is done, changes occur in a body.

  • There are different forms of energy and they are all related to work done.
  • When work is done on a body, a force causes a change in that body.
  • Both potential and kinetic energy are the same as work done.
  • Energy is needed to do work.
  • Work is done when a body changes energy.

Learn more:

Energy brainly.com/question/5416146

#learnwithBrainly

4 0
2 years ago
A wave is traveling at a speed of 18 m/s with a frequency of 3 Hz. A second wave is traveling at a speed of 16 m/s with a freque
Alik [6]

Answer:

2Hz

Explanation:

8 0
3 years ago
Using a scale of 1 cm to represent 10 N, find the size and direction of the resultant of forces of 50 N
marta [7]

Answer:

74.31\ \text{N}

16.59^{\circ}

Explanation:

P = 50 N

Q = 30 N

\theta = Angle between the vectors = 45^{\circ}

Resultant is given by

R=\sqrt{P^2+Q^2+2PQ\cos\theta}\\\Rightarrow R=\sqrt{50^2+30^2+2\times 50\times 30\times \cos45^{\circ}}\\\Rightarrow R=74.31\ \text{N}

Angle of resultant

\phi=\tan^{-1}\dfrac{Q\sin\theta}{P+Q\cos\theta}\\\Rightarrow \phi=\tan^{-1}\dfrac{30\times \sin45^{\circ}}{50+30\cos45^{\circ}}\\\Rightarrow \phi=16.59^{\circ}

Magnitude of the resultant is 74.31\ \text{N}

Direction of the resultant is 16.59^{\circ}

4 0
3 years ago
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