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Nuetrik [128]
3 years ago
14

There is a 28 ohm resistance in a heating element. It is plugged into a 110V circuit . How much current passes through the heati

ng element
Physics
2 answers:
Aloiza [94]3 years ago
6 0
14ohms 
cccccccccccccccccccccccccccccccccccccccccc
RSB [31]3 years ago
3 0
V = IR

V = 110V
R = 28Ω

I = V/R = 3.9 A

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An ideal air-filled parallel-plate capacitor has round plates and carries a fixed amount of equal but opposite charge on its pla
Vikentia [17]

Answer:

The new energy density is same as initial energy density u0 as it is independent of plate dimensions

Explanation:

As we know that energy density is total energy per unit volume

so we know that isolated plates of capacitor is placed here

C = \frac{\epsilon_0 A}{d}

here we have energy density given as

u = \frac{Q^2}{2(\epsilon_0 A/d)} Ad

so we have

u = \frac{Q^2d^2}{2\epsilon_0}

so it is independent of the dimensions of the plate while total charge on the plates is constant always

so energy density will not change and remains the same

8 0
3 years ago
The earth travels around the sun once a year in an approximately circular orbit whose radius is 1.50x10^11 m. From this data det
seraphim [82]
(a) Determine the circumference of the Earth through the equation,
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Hence, the orbital speed of the Earth is ~29883.307 m/s.

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8 0
4 years ago
A conservative force on a particle moving along the x axis is given by F = (3x^2-2x)i. Which of the following is a potential tha
ANTONII [103]

pck u

report me if you can

tex]\purple{\rule{45pt}{7pt}}\blue{\rule{45pt}{999999pt}}

5 0
2 years ago
What 2 parts of your foot do you use to dribble a soccer ball
Rasek [7]

Answer:

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Explanation:

thats how i do it

4 0
3 years ago
When a certain rubber band is stretched a distance x, it exerts a restoring force of magnitude f = ax, where a is a constant. th
Veseljchak [2.6K]
Given:
F = ax
where
x = distance by which the rubber band is stretched
a =  constant

The work done in stretching the rubber band from x = 0 to x = L is
W=\int_{0}^{L} Fdx = \int_{0}^{L}ax \, dx = \frac{a}{2}  [x^{2} ]_{0}^{L} =  \frac{aL^{2}}{2}

Answer:  \frac{aL^{2}}{2}

4 0
4 years ago
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