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2 years ago

Why is it wrong to leave our light on

Physics

1 answer:

Dennis_Churaev [7]2 years ago

8 0

Answer:

you will get huge electricity bills ............

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2 years ago

Light year is a unit of?

IrinaVladis [17]

Light year is the unit of distance. It is the distance that an object travels in one year with the speed of light.

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3 years ago

A time-dependent but otherwise uniform magnetic field of magnitude B0(t) is confined in a cylindrical region of radius 6.5 cm. I

vodka [1.7K]

Answer:

a = 603.59 m/s^2

Explanation:

from the data given . the rate of change in magnetic field is as follow

$\frac{dB}{dt} = 280 G/s = 280 \times 10^{-4} T/s$

from the faraday's law of induction , the expression for the induced emf in region of radius r as follow

$\epsilon = \frac{d \phi}{dt}$

$\int E.dl = \frac{d(BA)}{dt}$

$E(2\pi r)= \pi r^2 \frac{dB}{dt}$

$E = \frac{r}{2} \frac{dB}{dt}$

electric field at point P_1 as follow

$E = \frac{r}{2} \frac{dB}{dt}$

$E = \frac{1.5\times 10^{-2}}{2} 280 \times 10^{-4}$

$E = 6.3\times 10^{-6} V/m$

from newton 2nd law of motion, the acceleration of proton is

F = ma

qE = ma

$a = \frac{qE}{m}$

$a = \frac{1.6 \times 10^{-19} (6.3\times 10^{-6})}{1.67\times 10^{-27}}$

a = 603.59 m/s^2

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3 years ago

What type of motion is shown with this graph? (5 points)

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It should be Constant speed. The line goes straight & doesn’t change within the graph.

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2 years ago

A Force Play is when the defense...

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2 years ago

Why is it wrong to leave our light on​

Why is it wrong to leave our light on