The radius of one of the planets in the solar system is r = 4.5 × 1012 m and its orbital period is T = 165 years. What is the magnitude of the orbital velocity of this planet around the sun, assuming a circular orbit? A. 2.17 × 103 m/s
B. 8.24 × 104 m/s
C. 6.33 × 102 m/s
D. 5.43 × 103 m/s

Abug is 12 cm from the center of a turntable that is rotating with a frequency of 45 rev/min . what minimum coefficient friction is required so that the bug stays on the turntable?

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

How to tell if a molecule is polar or nonpolar with electronegativity