Author Question: The HertzprungRussell diagram is a plot of A) radial velocity against distance B) apparent ... (Read 15 times)

burton19126 · **on:** Jul 27, 2018

The HertzprungRussell diagram is a plot of

A) radial velocity against distance
B) apparent brightness against time
C) luminosity against distance
D) luminosity against surface temperature

Question 2

A skier, of mass 60. kg, pushes off the top of a frictionless hill with an initial speed of 4.0 m/s. How fast will she be moving after dropping 10. m in elevation?

A) 0.20 km/s
B) 15. m/s
C) 10. m/s
D) 0.15 km/s
E) 49. m/s