A horizontal force of 120 N is used to push a 49 kg box 5.4 m on a rough, horizontal
surface.
The acceleration of gravity is 9.8 m/s
2.
1) If the box moves at constant speed, find the
work done by the 120 N force.
Answer in units of J.
2) How much energy is lost to friction?
Answer in units of J.
3) What is the coefficient of kinetic friction?

i don't know that i agree with that but what's the question ?

no

sodium is solid at rt

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.

d. platinum would have the greatest temperature increase because it has the lowest specific heat.