Two wooden boxes of equal mass but different density are held beneath the surface of a large container of water. Box A has a smaller average density than box B. When the boxes are released, they accelerate upward to the surface. Which box has the greater acceleration?

Box A

Explanation:

Let mass of each wooden box =m

Density of box A=

Density of box B =

Density,

Density of inversely proportional to volume.

The volume of box with smaller density is larger than the volume of box with large density.

When the boxes are submerged under water.

Then, the buoyant force=

Where V=Volume of displace fluid.

Density of fluid

Buoyant force of box A=

Buoyant force of box  B=

Force=Buoyant force

Acceleration is directly proportional to volume.

Therefore,the box with large volume has greater acceleration.

Hence, the box A has greater acceleration.

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..