They do in fact help build up coral reefs.
Answer:
Explanation:
Torque on a loop in a magnetic field
Maximum torque = M B
M is magnetic moment of loop and B is magnetic field
M = area x current
= 3.14 x .10² x i
Maximum torque = M B
1 x 10⁻³ = 3.14 x .10² x i x .65 x 10⁻⁴
i = 490 A
Current = 490 A.
a) Cumulus is 100% the correct answer
There’s frictional force acting on the sphere, which causes it to gradually slow down, and eventually come to a stop.
