Procyon lies about 13 light-years distant, thus its parallax is about
A) 0.01".
B) 0.25".
C) 0.40".
D) 0.65".
E) 1.3".
B
You might also like to view...
A handball of mass 0.10 kg, traveling horizontally at 25. m/s, strikes a wall and rebounds at 19. m/s. What is the change in the momentum of the ball?
A) 4.4 N-s B) 72 N-s C) 1.2 N-s D) 1.8 N-s E) 5.4 N-s
A geophysicist measures the magnetic force on a proton that is moving vertically downward at a point 1.996 km/s at the earth's equator. At that location, the earth's magnetic magnetic field is horizontal and has a strength of 0.40 × 10-4 T
What are the magnitude and direction of the force she will measure? (e = 1.60 × 10-19 C)
Avogadro's number is related to the universal gas constant R and the number of moles n by:
a. NA = Rn b. NA = R/n c. NA = n/R d. Avogadro's number cannot be related to these two quantities alone.
A liquid cannot be heated simultaneously by conduction, convection, and radiation
a. True b. False Indicate whether the statement is true or false