A crane uses a system of pulleys with a mechanical advantage of 27. An input force of 8650 N is used to lift a pile of steel beams. What is the weight of the girders? ( show all work )
( do it very well and ill mark you brainlist )

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

the part of the wave he is travelling on is the crest

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.

the force represented by vector a is normal force. if the hockey puck is moving to the right, when it is hit with a significant force by the hockey stick the puck will move off in a different direction. correct on edge.