The illustration shows the basic unit of life it is
2 answers:
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Answer:
Part a)
Part b)
Explanation:
Part a)
As we know that electric field intensity due to some given charge distribution is given as
now electric flux through a spherical surface of radius r is given as
now by Guass law we know that
now volume charge density is given as
Part b)
Total charge inside the radius R is given as
Explanation:
Given that,
Mass of a skier, m = 55 kg
The vertical distance between start and finish is 10 m.
(a) The potential energy of a skier is given by :
(b) When she reaches the bottom of the hill, the potential energy is converted to kinetic energy. So,
Hence, her potential energy is 5390 J and at the bottom of the hill she is moving with a speed of 14 m/s.