Asap:

which of the following would you expect to see in the death of a star that is less than 0.5 solar mass?
a) white dwarf
b) supernova
c) planetary nebula
d) red giant

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

What is the magnitude of the resultant vector round your answer to the nearest tenth

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final