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Illusion [34]
3 years ago
10

PLEASE HELP!!! Nico uses wire to connect a battery, a lightbulb, and a switch, but the bulb does not light up. Which might expla

in this problem? A. The battery has too much power. B. The wires are bent. C. The circuit is closed. D. The switch is open.
Physics
2 answers:
Wewaii [24]3 years ago
6 0
Its is C the answer is c lol
Oksi-84 [34.3K]3 years ago
5 0
(D) The switch is open , which implies that no current flows in the circuit.  (ANS)

Bent wires are of no problem unless the wires get cut which is not the case.

The circuit is closed, will actually help the bulb light up.

Much power depends on the bulb power rating which I am sure the examiner did not put in mind ( actually higher power = more light ) however, after the power given exceeds the power rating the bulb will burn out. 

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mezya [45]

5

if zero falls between two significant numbers it becomes significant.

6 0
4 years ago
For fully developed laminar pipe flow in a circular pipe, the velocity profile is u(r) = 2(1-r2 /R2 ) in m/s, where R is the inn
sdas [7]

Answer:

a) v_{max} = 2\ \textup{m/s}

b) v_{avg} = 1\ \textup{m/s}

c) Q = 1.256 × 10⁻³ m³/s

Explanation:

Given:

The velocity profile as:

u(r) = 2(1-\frac{r^2}{R^2} )

Now, the maximum velocity of the flow is obtained at the center of the pipe

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thus,

v_{max}=u(0) = 2(1-\frac{0^2}{R^2} )

or

v_{max} = 2\ \textup{m/s}

Now,

v_{avg} = \frac{v_{max}}{2}\ \textup{m/s}

or

v_{avg} = \frac{2}}{2}\ \textup{m/s}

or

v_{avg} = 1\ \textup{m/s}

Now, the flow rate is given as:

Q = Area of cross-section of pipe × v_{avg}

or

Q = \frac{\pi D^2}{4}\times v_{avg}

or

Q = \frac{\pi 0.04^2}{4}\times 1

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Q = 1.256 × 10⁻³ m³/s

7 0
3 years ago
0. The volume of a cube is 27cm3. Find the length of edge of cube.​
Dennis_Churaev [7]

Answer:

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Explanation:

7 0
3 years ago
Two extremely large nonconducting horizontal sheets each carry uniform charge density on the surfaces facing each other. The upp
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8 0
3 years ago
Help thank you...............
Sergeu [11.5K]

Answer:

do explain what u need help with?

3 0
3 years ago
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