Von bertalanffy's equation states that the rate of growth in length of an individual fish is proportional to the difference between the current length l and the asymptotic length lt (in cm). (a) write a differential equation that expresses this idea. (let k be the proportionality constant.)

50 inches should be the resultant vector

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

current flows in a wire