I will give the best answer brainliest. Question 1 (1 point)
The concept that the total amount of energy remains the same is called

A. Mechanical energy conservation

B. Elastic potential energy

C. Nuclear energy

D. Kinetic energy

the independent variable, or the one that is intentionally manipulated is the speed.

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.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2