Aforce of 11 n is applied to the handle of a screwdriver being used to pry off the lid of a paint can. as the input force moves through a distance 0.3 m, the screwdriver does 3 j of work on the lid. what is the efficiency of the screwdriver? show your work

Answer : The efficiency of the screwdriver is

Explanation :

Applied force on the handle of screwdriver, F = 11 N

Distance covered by the input force, d = 0.3 m

Output work,

Efficiency of the screwdriver is given by the following relation :

Hence, this is the required solution.

the answer is b, have negligible mass

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.