Where are the statements?
Answer:
icebergs float on water because ice is less dense than water. The same is true for a boat: a boat floats on water because, overall, it is less dense than the water.
Explanation:
Answer: The magnetic field lines go in directions that cannot combine to form a magnetic field between the two north poles.
Explanation: that was the answer for me I just took it on ape x
Answer:
The gravitational potential energy, P.E = 3345484.8 J
Explanation:
Given,
The mass of the person, m = 64 kg
The elevation of the village, h = 5334 m
The gravitational potential energy is the energy possessed by the body due to its height from the surface of the Earth at sea level.
Therefore, the gravitational P.E at height h above sea level is given by the relation
<em>P.E = mgh joules</em>
Substituting the given values,
P.E = 64 kg x 9.8 m/s² x 5334 m
= 3345484.8 J
Hence, the gravitational potential energy associated with the person, P.E = 3345484.8 J
Refractive index(n)= speed of light in vacuum/ speed of light in medium.
Since refractive index is 1.11, and usually we know that the speed of light is 300,000km/s, simply divide 300,000km/s over 1.11. That is, 270,270.2703 when simply rounding, its 270,270 km/s.
