Neutron stars must ____

a. rotate very rapidly
b. be very luminous
c. have weak magnetic fields
d. have a mass greater than three solar masses
e. have about the same surface temperature as the star that created them


a

Physics & Space Science

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The Jovian planets formed beyond the _______________, where water vapor, methane, and ammonia could freeze to form ice particles

Fill in the blank(s) with correct word

Physics & Space Science

A proton moves around a circular path (radius = 2.0 mm) in a uniform 0.25-T magnetic field. What total distance does this proton travel during a 1.0-s time interval? (m = 1.67 × 10^?27 kg, q = 1.6 × 10^?19 C)

a. 82 km b. 59 km c. 71 km d. 48 km e. 7.5 km

Physics & Space Science

What happens when a planet passes in front of its star (i.e. between the star and us)?

a) The star increases in brightness and the star moves away from us b) The star increases in brightness and the star moves towards us c) The star decreases in brightness and the star moves towards us d) The star does not change in brightness or move relative to us e) The star decreases in brightness and the star moves away fromus

Physics & Space Science

Deuterium and helium could be made only during the nuclear epoch

Indicate whether the statement is true or false

Physics & Space Science