Pls ! how we calculate this?
you if you solve

0 μC

Explanation:

We need to convert each term to the same units.

1 mC = 1000 μC

1 μC = 1000 nC

First, convert the first term from mC to μC:

+3×10⁻³ mC × (1000 μC / 1 mC) = +3 μC

Next, convert the third term from nC to :

+3×10³ nC × (1 μC / 1000 nC) = +3 μC

Therefore:

(+3×10⁻³ mC) + (-6 μC) + (+3×10³ nC)

(+3 μC) + (-6 μC) + (+3 μC)

0 μC

The sum is 0 μC (or simply 0 C).

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation: