3 years ago

What does it mean if a conductor is in "electrostatic equilibrium"? a) The conductor is at rest.

Physics

1 answer:

Margarita [4]3 years ago

3 0

Answer:

Explanation:

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A 60-W light bulb radiates electromagnetic waves uniformly in all directions. At a distance of 1.0 mm from the bulb, the light i

slega [8]

Answer:

The appropriate solution is:

(a) $\frac{1}{4}(I_o)$

(b) $\frac{1}{4} (u_o)$

(c) $\frac{1}{2}B_o$

Explanation:

According to the question, the value is:

Power of bulb,

= 60 W

Distance,

= 1.0 mm

Now,

(a)

⇒ $\frac{I}{I_o} =\frac{r_o_2}{r_2}$

On applying cross-multiplication, we get

⇒ $I=I_o\times \frac{1_2}{2^2}$

⇒ $=I_o\times \frac{1}{4}$

⇒ $=\frac{1}{4} (I_o)$

(b)

As we know,

⇒ $\frac{u}{u_o} =\frac{I}{I_o}$

By putting the values, we get

⇒ $u=\frac{1}{4}(u_o)$

(c)

⇒ $\frac{B^2}{B_o^2} =\frac{u}{u_o}$

$=\frac{I}{I_o}$

⇒ $B=B_o\times \sqrt{\frac{1}{4} }$

⇒ $=\frac{1}{2}(B_o)$

4 0

3 years ago

If an experiment used 945 j of heat, how many calories (cal) is that?

irina1246 [14]

There are approximately two hundred and twenty-five point seven five calories from using 945 j of heat

A: 225.75

5 0

3 years ago

Has anyone done the Physical Science B- Forces and Motion Unit Test?? If so could you please help me

Sedbober [7]

I haven't, but I'm sure @Porshia has!

4 0

3 years ago

Given that: = 2i + 9j +3k and = -i – 4k . Find

Igoryamba

Answer:

3i+9j= -7k

Explanation:

2i+I+9j=-4k-3k

3i+9j= -7k

7 0

2 years ago

A car of mass 487 kg travels around a flat, circular race track of radius 53.3 m. The coefficient of static friction between the

aleksklad [387]

Answer:

9.96 m/s

Explanation:

mass of car, m = 487 kg

radius of track, R = 53.3 m

coefficient of static friction, μ = 0.19

acceleration due to gravity, g = 9.8 m/s^2

let v be the maximum speed so that the car can go without flying off the track.

The formula for the maximum speed is given by

$v_{max}=\sqrt{\mu Rg}$

$v_{max}=\sqrt{0.19\times53.3\times9.8$

vmax = 9.96 m/s

8 0

3 years ago