What is the maximum value of the magnetic field at a
distance2.5m from a 100-w light bulb?

To solve this problem we will apply the concepts related to the intensity included as the power transferred per unit area, where the area is the perpendicular plane in the direction of energy propagation.

Since the propagation occurs in an area of spherical figure we will have to

Replacing with the given power of the Bulb of 100W and the radius of 2.5m we have that

The relation between intensity I and

Here,

= Permeability constant

c = Speed of light

Rearranging for the Maximum Energy and substituting we have then,

Finally the maximum magnetic field is given as the change in the Energy per light speed, that is,

Therefore the maximum value of the magnetic field is

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.