Why do pulsars "pulse"?
A. Their surface expands and contracts rapidly, causing changes in brightness.
B. They have extremely fast rotation rates.
C. Their rotation axis is misaligned with their magnetic field axis.
D. They have extremely strong magnetic fields.
Answer: C
You might also like to view...
Energy and Mass: One of the first atomic explosion released approximately 1.0 × 1014 J of energy. How much matter had to be changed into energy to produce this yield? (c = 3.0 × 108 m/s)
A. 1.1 g B. 23 g C. 13 g D. 0.45 kg E. 1.1 kg
Using your social media profile to create an account on a website generally is a violation of your privacy.
Answer the following statement true (T) or false (F)
Two harmonic waves traveling in opposite directions interfere to produce a standing wave described by y = 4sin(5x)cos(6t) where x is in m and t is in s. What is the approximate frequency of the interfering waves?
a. 3 Hz b. 1 Hz c. 6 Hz d. 12 Hz e. 5 Hz
A metal block sits on top of a floating wooden block. If the metal block is suspended from the bottom of the wooden block, what happens to the volume of the wooden block that is submerged in the water?