What happens to a star after it goes supernova? does the remnant of the star form a dwarf star, neutron star, black hole, or something else? !

Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20

Matter that emits no light at any wavelength is called

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?