In the equivalence principle,
A) all forces are equivalent.
B) all velocities are equivalent.
C) acceleration is equivalent to the gravitational force.
D) acceleration is equivalent to force.
E) velocity is equivalent to the gravitational force.
Question 2
Which of the following measures would help reduce the need for new electric power plants?
A) Energy storage methods at electric power plants.
B) More energy-efficient use of electricity.
C) Time-of-daypricing that charges more for electricity at the peak times.
D) All three of the above measures would help.
E) Both measures A and C would help, but not B.