Most pulsars have a measured mass of
A) about 1.4 solar masses.
B) 5.2 solar masses.
C) greater than 10 solar masses.
D) less than 1.0 solar masses.
E) between 2 and 4 solar masses.
A
You might also like to view...
A galaxy's spectrum has a redshift of 30,000 kilometers per second. If the Hubble constant is 75 kilometers per second per megaparsec, how far away from Earth is the galaxy?
A. 1,000 megaparsecs B. 106 megaparsecs C. 400 megaparsecs D. 20 megaparsecs E. 50 megaparsecs
Why are so few molecules observed in visible light? Where are most observed, and why?
What will be an ideal response?
A long straight wire is parallel to one edge and is in the plane of a single-turn rectangular loop as shown. If the loop is changing width so that the distance x changes at a constant rate of 4.0 cm/s, what is the magnitude of the emf induced in the loop at an instant when x = 6.0 cm? Let a = 2.0 cm, b = 1.2 m, and I = 30 A.
A. 5.3 ?V B. 2.4 ?V C. 4.8 ?V D. 2.6 ?V E. 1.3 ?V
Just above the surface of the Earth, the direction of the gravitational field is away from the Earth
a. True b. False Indicate whether the statement is true or false