(a) A force of 15 N applied to a spring compresses it by 4 cm. What is the potential energy of the spring in the compressed position?
(b) A force of 15 N applied to a spring stretches it by 4 cm. What is the potential energy of the spring in the stretched position?
(a) 0.3 J
(b) 0.3 J
You might also like to view...
The age of the solar system is believed to be approximately 4.6 billion years based on the data from
a. samples of lunar rocks. b. samples of Earth rocks. c. samples of meteorites. d. all of the above e. none of the above
Who first used RR Lyrae variable stars to determine distances in our Milky Way galaxy?
a. Henrietta Leavitt b. Edwin Hubble c. John Glenn d. Carl Sagan e. Harlow Shapley
An isotope is simply an atom that
A) is electrically charged. B) has different numbers of neutrons for the same element. C) both of these D) neither of these
What energy must be added or given off in a reaction where a helium atom is separated into two hydrogen atoms and two neutrons? (Atomic masses for each: hydrogen, 1.007825 u; neutron, 1.008665 u; helium, 4.002602 u; also, 1 u = 931.5 MeV/c2.)
a. 28.3 MeV given off b. 20.7 MeV added c. 20.7 MeV given off d. 28.3 MeV added