Gleise 581 is a star that shows a parallax of 159 milliarcseconds (mas), or 0.159 arcseconds (as). 1. How far away is Gleise 581 in parsecs?
astronomy

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

How much force was applied to an object if was moved 2 meters and the work done on the object was 8 joules? a. 0.25 n b. 4 n c. 6 n d. 16 n

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good