Accuracy is a general concept while precision is more of a mathematical concept.
Answer:
12 or 24
Explanation:
i think it is i hope it is right
Answer: Physical
Explanation: There are no changes being done to the salt. Think of it this way, if you dissolve the salt in water then boil the water completely, you will have the same salt you started with.
"B" When an object moves away from us, the light is shifted to the red end of the spectrum, as its wavelengths get longer.
Impulse=force x time
force=mass x acceleration due to gravity
force=

impulse =3000 x 2.5= ( sorry i don't have a calculator right now so you must calculate this yourself)
I converted from kg to g because it is the standard.
Hope this helps you.