In the return stroke of a typical lightning bolt, a current of 7.01×10^4 a (70.1 ka). exists for 20 μs. how much charge is transferred in this event ?

Charge, q = 1.402 C

Explanation:

Given that,

Current from lightning bolt,

Time, t =

Let q is the charge transferred in this event. We know that the total charge divided by time is called current. Mathematically, it is given by :

q = 1.402 C

So, 1.402 coulomb of charge is transferred in this event. Hence, this is the required solution.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000