a boat loaded with scrap iron floats in a swimming pool when the iron is thrown overboard ,the pool level?

Question

a)rises
b)falls
c)remains unchainged

Answer 1

b) Simple displacement.
Because of the wording it could be a)b) or c).
If the scrap iron has large area, it would or could take up space and displace more water.
If scrap iron is ingots,rails or flat panels, water level would fall as the boat requires less displacement area.
Placeing the boat in makes it rise,decreasing the area for bouyancy, weight off, makes the level fall.
If the pool was built around the boat, well that would be a math problem, and kinda stoopid.
So it could be a),b) or c)
If the boat floats, it works. nuff said.
But good problem!

Answer 2

I'd say it depends upon what kind of boat it is, and the shape of the iron. The displacement of the hull will be dependent upon its shape/design, bouyancy, and the wieght of the iron. The water displacement of the iron itself may or may not be relative to its weight. Since you designated scrap iron, and not shredded scrap iron it is impossible to answer your question without an actual sample (scrap iron that has a certain shape might float and displace far less out of the boat ex. tanks, boilers, gutters, etc.), although my instinct is that in general it would displace less in the water than in the boat. I'm no physicist, but that's my answer, b.

Answer 3

c
The weight of the iron in the water was displacing some of the water (up the side of the pool.) Its doing the same job as its sits on the bottom of the pool. The boat is displacing less water by an equivalent amount.

Only a very insecure scientist would mess up their pool this way.

Answer 4

b) falls, basic fluid statics, iron is more dens than water

Answer 5

a

Answer 6

c

Answer 7

b. It falls.

Now *you* need to figure out why ☺

Doug

Answer 8

rises