The questions above I got incorrect these are the ones that are highlighted. Ple

Question

The questions above I got incorrect these are the ones that are highlighted. Please use the answers provided to answer the questions. Thanks!

Incorrect Question 1 0 1 pts Which has a greater buoyant force on it and why, a 25cm piece of wood floating with part of its volume above water or a 25cm3 piece of completely submerged iron? The submerged iron because it displaces more water It is impossible to tell without knowing their weights. It is impossible to tell without knowing their exact densities. The floating wood because a larger buoyant force is needed to make an object float The submerged iron because it's weight is larger

Explanation / Answer

1)

Buoyant force = density of water * volume of water displaced * acceleration due to gravity

here, completely submerged iron displaces 25 cm^3 of water while floating wood displaces less than 25 cm^3

So, the answer is

The submerged iron because it displaces more water

4)

Since both iron and wood have same volume and they are completely submerged, they displaces equal amount of water and hence the buoyant force will be same on both

Answer: option 3

I am allowed to answer only 1 question at a time

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