As the dress is black it will absorb all colors with all different wavelengths
In short, Your Answer would be Option A
Hope this helps!
Answer:
the final potential energy of this system is 3U0/10
Explanation:
We are given
charge at left end and another test charge at point p
Potential energy is given by =
where k is electrostatics constant = 
Q1 = first charge , Q2= test charge
R= distance between charges
potential at point p
U0 = k*Q1*Q2 /3 ⇒ kq1q2 = 3U0 ..............1
now the test charge moves to point R
using Pytahgoreou theorem
R(distance) =
= 10
New Potential energy
U1 = kq1*q2 / 10
substituting kq1q2 = 3U0 from 1
U1 = 3U0/10
So this is the final potential energy of this system.
It will be 80 miles and it can be done only in 16 min
The answer is true. The blowing fan force the hot air to go through the process of convection .
It’s C
solar
correct me if i’m wrong though