Astar has a size of 0.1 solar radius. how many times larger is the sun than this star?

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.