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Ierofanga [76]
3 years ago
8

A power source of 6.0 V is attached to the ends of a capacitor. The charge is 12 C.

Physics
2 answers:
Dmitry_Shevchenko [17]3 years ago
8 0
From your given, <span>A power source of 6.0 V is attached to the ends of a capacitor. The charge is 12 C., the answer would be </span><span>2.0 μF.
</span>
 The formula would be:
C=q/Vab
SOLUTON:Vab=6VQ=2uAC

C=12uAC/6=2uAF
ArbitrLikvidat [17]3 years ago
5 0
The electric field at any point in the region between the conductors is proportional to the magnitude Q of charge on each conductor. It follows that:

"The potential difference Vab between the conductors is also proportional to Q"

If we double the magnitude of charge on each conductor, the charge density at each point doubles, the electric field at each point doubles, and the potential difference between conductors doubles; however, the ratio of charge to potential difference does not change. This ratio is called the capacitance C of the capacitor:

C= \frac{Q}{V_{ab}}

Given that:

V_{ab}=6V and Q=12\mu C 

Lastly, the capacitance is given by:

C= \frac{12\mu C}{6V}=2\mu F 
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Answer:

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Explanation:

Given that,

The spring constant of the spring, k = 3086 N/m

The spring is stretched 18 cm or 0.18 m

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Potential energy of the spring, P_f=20\ J

To find,

The velocity of the car.

Solution,

It is a case of conservation of energy. The total energy of the system remains conserved. So,

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\dfrac{1}{2}kx^2=\dfrac{1}{2}mv^2+20

\dfrac{1}{2}\times 3086\times (0.18)^2=\dfrac{1}{2}mv^2+20

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v=\sqrt{\dfrac{60}{100}}

v = 0.774 m/s

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7 0
3 years ago
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<span>The gravity of earth depends on the magnetism from its core. as this magnetism increases, the magnitude of the gravity increases.</span>
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Q 2 Two mirrors meet at right angles. A ray of light is incident on one at an angle of 30°
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3 years ago
3 characteristics of chemical change
gtnhenbr [62]

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Read 2 more answers
1)the car's engine power is 44000W. Explain this number in a physical sense
Ratling [72]

Answer:

1) It expresses the rate (top speed) at which it can move with time.

2) P = 20 W

3) h = 18 km

Explanation:

1) Power is the rate of transfer of energy.

⇒ Power = \frac{Energy(or workdone)}{Time}

i.e P = \frac{E}{t}

Thus a car's engine power is 44000W implies that the engine of the car can propel the car at this rate. This expresses the rate (top speed) at which it can move with time.

2) m = 400g = 0.4 kg

    t = 20 s

h = 100m

g = 10 m/s^{2}

P = \frac{mgh}{t}

  = \frac{0.4*10*100}{20}

  = \frac{400}{20}

P = 20 W

3) u = 600 m/s

   g = 10 m/s^{2}

From the third equation of free fall,

V^{2} = U^{2} - 2gh

V is the final velocity, U is the initial velocity, h is the height.

0 = (600)^{2} - 2 x 10 x h

0 = 360000 - 20h

20h = 360000

h = \frac{360000}{20}

  = 18000

h = 18 km

The maximum height of the bullet would be 18 km.

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3 years ago
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