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kirill115 [55]
3 years ago
14

A capacitor with a capacitance of 50µf when connected to a battery of 400 V. The charge and energy stored on it is? a. 0.05 C an

d 5 J b. 0.05 C and 10 J c. 0.02 C and 4 J d. 0.08 C and 12 J
Physics
1 answer:
nekit [7.7K]3 years ago
3 0

Answer:

c. 0.02 C and 4 J

Explanation:

Applying,

Q = CV................ Equation 1

Where Q = Charge, C = Capacitance of the capacitor, V = Voltage.

From the question,

Given: C = 50 μF = 50×10⁻⁶ F, V = 400 V

Substitute these values into equation 1

Q = (50×10⁻⁶)(400)

Q = 0.02 C.

Also Applying

E = CV²/2............. Equation 2

Where E = Energy stored.

Therefore,

E = (50×10⁻⁶ )(400²)/2

E = 4 J

Hence the right option is c. 0.02 C and 4 J

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Flow around curved height contours requires the incorporation of the centrifugal force. What is the general term to describe the
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Answer: Gradient Wind

Explanation:

Gradient wind, is the wind that accounts for air flow along a curved trajectory. It is an extension of the concept of geostrophic wind; for example the wind assumed to move along straight and parallel isobars (lines of equal pressure). The gradient wind represents the actual wind better than the geostrophic wind, especially when both wind speed and trajectory curvature are large, because they are in hurricanes and jet streams.

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3 years ago
List and define 4-5 waste materials from copper ore processing
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<span>Four waste materials from copper ore processing are: ore minerals, unwanted rock or gangue, uranium, and pyrite/sulfide minerals. Ore minerals are contained in rock and have potential to be economically extracted, gangue may contain silicate minerals for which there is no economic value, uranium is a frequently-occurring radionuclide found in ore bodies, and pyrite and sulfide minerals may be found in tailings piles during copper processing.</span>
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4 years ago
A scientist conducted research and plotted his results in the histogram shown below. Which of the
ludmilkaskok [199]

Answer:

Median

Explanation:

  • we commonly use mean as the measure of the center of the data.
  • But Median is better measure than mean.

<u>Extra</u><u> </u><u>information</u><u>:</u><u>-</u>

<u>Median</u><u> </u><u>formula</u><u>:</u><u>-</u>

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6 0
3 years ago
all bearings are made by lebng spherical drops of molten metal fall inside a tall tower – called a shot tower – and solidify as
Wewaii [24]

Answer:

Part b)

h = 78.5 m

Part c)

v = 39.24 m/s

Explanation:

Part b)

If ball need t = 0 to t = 4 s then height of the tower is the total displacement of the ball in t = 4 s interval

here if ball start from rest

then its displacement is given as

\Delta y = \frac{1}{2}gt^2

\Delta y = \frac{1}{2}(9.81)(4^2)

\Delta y = 78.5 m

Part c)

Speed of the bearing at the end of the motion of the ball

v_f = v_i + at

v_f = 0 + (9.81)(4)

v_f = 39.24 m/s

7 0
3 years ago
The FDA protects the US public from __________.
Furkat [3]
Hello.

The answer is harmful prescription.
<span>
The FDA  protects the US public from </span> harmful prescription.

They also protect form people absing drugs and montires people to not use drugs.

Have a nice day.
3 0
3 years ago
Read 2 more answers
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