________ are hot compact remnant stars whose mass is typically between one and several times that of the Sun, but their size is only 10 km or less.

A. Neutron stars
B. White dwarfs
C. Pulsars
D. Black dwarfs


Answer: A

Physics & Space Science

You might also like to view...

During Solar System formation, solid particles contracted from the gas of the nebula as it cooled

a. True b. False Indicate whether the statement is true or false

Physics & Space Science

Two long parallel wires carry currents of 20 A and 5.0 A in opposite directions. The wires are separated by 0.20 m. At what point between the two wires are the contributions from the two wires the same?

A) 0.040 m from the 20 A wire B) 0.080 m from the 20 A wire C) 0.12 m from the 20 A wire D) 0.16 m from the 20 A wire E) 0.18 m from the 20 A wire

Physics & Space Science

When a 100-? resistor is connected to a battery of emf E and internal resistance r, the battery delivers a power P = 0.794 W. When a 200 ? resistance is connected to same battery it delivers a power P = 0.401 W

What are the emf and internal resistance of the battery? A) E = 10 V, r = 5 ? B) E = 4.5 V, r = 4 ? C) E = 18 V, r = 4 ? D) E = 9 V, r = 2 ? E) E = 12 V, r = 6 ?

Physics & Space Science

In the x-ray chemical analysis of the stainless-steel specimen in Figure 15.11, the Cr K? line with a wavelength of 0.2291 nm occurs at 99 degrees. What is the interplanar spacing of the crystal used in this wavelength dispersion experiment?

What will be an ideal response?

Physics & Space Science