<span>they are: *the rise of Christianity in Europe *the fall of the roman empire</span>
C
The potential energy is mgh, she knows the mass, she needs the acceleration due to gravity and the height of the ball
Answer:
option A
Explanation:
given,
light is incident on the plane surface at (i) = 55°
angle of refraction (r) = 37°
μ is the refractive index of the material
using Snell's law
The refractive index of the material is
hence, the correct answer is option A
Answer:
Cuolomb is SI unit of charge
1 e=1.6022E-19 C
1 C = 6.2415E+18 e
Explanation:
Coulomb(C) is the SI unit for measuring electric charge and is given as the product of current and time. To convert Cuolomb to electron, we multiply each cuolomb of charge by 1 C = 6.2415E+18 e while to convert electron into charge, we multiply the electrons by 1e=1.6022E-19 C