Answer:
138.4625 N/C
Explanation:
We have that the charge +4 nC is at the origin (0,0,0)
We have to find the electric field at point (-0.5,-0.1,0)
We know that distance between two points is given by
The electric field due to a point charge is given by
Answer:
option (a)
Explanation:
In an isothermal process, the temperature of the gas remains constant.
The internal energy of the gas is the function of change in temperature.
As the temperature is constant, so there is no change in the internal energy of the gas.
So, internal energy change is zero.
Answer:
θ_c = 36.87°
Explanation:
Index of refraction for index medium; n_i = 2
Index of refraction for Refractive medium; n_r = 1.2
Formula to find the critical angle is given;
n_i(sin θ_c) = n_r(sin 90)
Where θ_c is critical angle.
Thus;
2 × (sin θ_c) = 1.2 × 1
(sin θ_c) = 1.2/2
(sin θ_c) = 0.6
θ_c = sin^(-1) 0.6
θ_c = 36.87°
Answer;
how fast or slow something is done.
Explanation;
The term rate refers to how fast or slow something is done. For example; a higher rate shows how fast something is being done or is taking lace, lower rate shows how slow something is being done.
In other words it is a quantity measured with respect to another measured quantity; for instance; a rate of speed of 60 miles per hour.