PLZZZ suppose you increase the voltage in the coils of the solenoid of an electromagnet. what happens the the electromagnet?

A. its strength becomes less

B. its strength decreases then increases

C. its strength becomes greater

D. its strength remains the same

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.

According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?

What was the purpose of the apollo program? to put a man in orbit to launch a spy satellite to launch a space station to put man on the moon