The diagram shows the electric field lines around two charges. Based on the field lines, what is the best description of the cha
rges ?
A.) they are negative, and they repel
B.) the left is negative and the right is positive, so they attract.
C.) the left is positive and the right is negative, so they attract.
D.) they are positive, they repel
A.) they are negative, and they repel
B.) the left is negative and the right is positive, so they attract.
C.) the left is positive and the right is negative, so they attract.
D.) they are positive, they repel
2 answers:
You might be interested in
Answer:
The shearing stress is 10208.3333 Pa
The shearing strain is 0.25
The shear modulus is 40833.3332 Pa
Explanation:
Given:
Block of gelatin of 120 mm x 120 mm by 40 mm
F = force = 49 N
Displacement = 10 mm
Questions: Find the shear modulus, Sm = ?, shearing stress, Ss = ?, shearing strain, SS = ?
The shearing stress is defined as the force applied to the block over the projected area, first, it is necessary to calculate the area:
A = 40*120 = 4800 mm² = 0.0048 m²
The shearing stress:
The shearing strain is defined as the tangent of the displacement that the block over its length:
Finally, the shear modulus is the division of the shearing stress over the shearing strain: