Answer:
See explanation
Explanation:
Solution:-
- light reflected through calcite crystals difference occurs due to the polarity of the light passing through the crystal. Daylight is composed of light vibrating in all planes, whereas reflected light is often restricted to a single plane that is parallel to the surface from which the light is reflected.
- Light that is reflected from the flat surface of a dielectric (or insulating) material is often partially polarized, with the electric vectors of the reflected light vibrating in a plane that is parallel to the surface of the material.
- light waves that have the electric field vectors parallel to the surface are reflected to a greater degree than those with different orientations.
Complete question:
A long, straight wire lies along the z-axis and carries a 4.00-A current in the +z-direction. Find the magnetic field (magnitude and direction) produced at the following points by a 0.500-mm segment of the wire centered at the origin:
(a) x = 2.00 m, y = 0, z = 0;
(b) x = 0, y = 2.00 m, z = 0;
(c) x = 2.00 m, y = 2.00 m, z = 0; (d) x = 0, y = 0, z = 2.00 m.
Answer:
a) ;
b) ;
c) ;
d) 0
Explanation:
Given
I = 4.20A
P = 0.500mm
a) r= (2.00m) i
∆;
;
b) r = (2.00m) j
∆;
;
c) r = (2.00m) (i+j)
;
∆;
;
d) r = (2.00m) k
∆;
B = 0
Answer:
B. -38.2 m/s
Explanation:
Given parameters:
Time of fall = 4s
Unknown:
Final velocity of the rock = ?
Solution:
To solve this problem, we use the expression below;
V = U + gt
V is the final velocity
U is the initial velocity
g is the acceleration due to gravity = 9.8m/s²
t is the time taken
Now, insert the parameters and solve;
V = 0 + (9.8 x 4) = 39.2m/s
Answer:
Amplitude make wave property affect the loudness of sound