According to relativity theory, if a space trip finds a son or daughter biologically older than his or her parents, then the space trip is taken by the
a. according to relativity theory, if a space trip finds a son or daughter biologically older than his or her parents, then the space trip is taken by theb. parents. c. eitherd. neither, it can't be done

B. parents

Explanation:

one of the conclusions from Einsteins relativity theory for his equation E= (where E is energy, m is mass and C is the speed of light),

is that time moves relative to the observer. Time moves more slowly when the observer is in motion (time dilation), therefore an individual in motion ages more slowly than someone at rest. This in fact happened when astronaut Scot Kelly spent nearly a year on board the international space station and on his return, his twin brother had aged slightly faster than him. In conclusion, if a space trip finds a son or daughter is biologically older than his or her parents, the space trip was taken by the parents.

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.

it is called kinetic energy