It could shock you since the battery could overheat
As density = mass/volume
So
Mass = density *volume
Mass = 25,365.4 * 2.7 = 68,486.58 g
<span>Mass of the granite monument to the nearest tenth
= 68,485.6 g</span>
For all antinodal positions we know that

now we also know the relation between phase difference and path difference

now we will have

now from above equation we will have

now for the first anti node position
N = 1

Option D is correct
Answer:
W = 0
Explanation:
When an electron moves perpendicular to a uniform B-field. If the field is in a vacuum, the magnetic field B is the dominant factor determining the motion. Since the magnetic force F is perpendicular to the direction of travel, an electron follows a curved path in a magnetic field. The electron continues to follow this curved path until it forms a complete circle. Another way to look at this is that the magnetic force F is always perpendicular to velocity v, so that it does no work on the charged particle. The particle’s kinetic energy and speed thus remain constant. The direction of motion is affected but not the speed.
W = F*d*Cos ∅ = F*d*Cos 90° = 0 where d is the displacement.
The pic shown can help to understand the explanation.