A mass hangs from a spring that is fixed to the ceiling. The mass is now pulled down and released so the mass oscillates up and down. Which of the following statements is true?
A. The gravitational force on the mass oscillates at the same frequency as the mass
B. The kinetic energy of the oscillating mass is a constant
C. Adding mass to the spring will make it oscillate faster
D. The restoring force of the spring is equal to the weight of the mass
E. None of these choices are true
Answer: E
You might also like to view...
The orbits of population I stars I. are confined to disk of the galaxy. II. are very elliptical. III. are nearly circular. IV. are randomly inclined to the disk of the galaxy
a. I b. IV c. I & IV d. II & IV e. I & III
How many colors of ink are used to print full-color pictures?
A) one plus black B) two plus black C) three plus black D) four plus black E) six plus black
An object is placed in front of a thin lens. Which statements are correct in describing the image formed by the lens? (There could be more than one correct choice.)
A) If the lens is convex, the image will never be virtual. B) If the image is real, then it is also inverted. C) If the image is real, then it is also upright. D) If the lens is concave, the image must be virtual. E) If the lens is convex, the image must be real.
At the point of fission, a nucleus of U-238, with 92 protons is divided into two smaller spheres each with 46 protons and a radius of 5.9 × 10^?15 m. What is the repulsive force pushing the two spheres apart when they are just touching one another? (The mass of the U-238 nucleus is 3.98 × 10^?25 kg.)