Albert Michelson is primarily remembered for A) proving length ...

[j.rubin]

Albert Michelson is primarily remembered for
 
  A) proving length contraction.
  B) not being able to detect an ether.
  C) his theory published in 1916.
  D) proving that the speed of light is not constant.
  E) proving time dilation.

Question 2

Alternating current and voltage (AC), rather than direct current and voltage (DC), are used for domestic electrical power. The reason for this is based on one of the following physical principles. Which one?
 
  A) When a current flows through a resistance, heat is generated.
  B) When a current flows through a wire, a magnetic field is created.
  C) When the number of magnetic field lines passing through a circuit changes, a voltage is generated in the circuit.
  D) When a current-carrying wire is placed in a magnetic field, it may experience a force if properly oriented.
  E) Opposite electric charges attract each other, and like charges repel each other.

[shewald78]

Answer to Question 1

B

Answer to Question 2

C

[j.rubin]

Gracias!

[bigcheese9]

Excellent