Question

pls tell these answers ​

Answer 1

Answer:

1. False

2. True

In the first one ,Because the TSA =2(LB+BH+LH)

but the lateral surface area is 2H(L+B) +2×B won't be equal to TSA of Cuboid .

In the second one , Yes if we compare both the figures it us same so the are will be same

hope this will help you but plz check before doing it

Answer 2

Buoyancy (/ˈbɔɪənsi, ˈbuːjənsi/)[1][2] or upthrust, is an upward force exerted by a fluid that opposes the weight of a partially or fully immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus the pressure at the bottom of a column of fluid is greater than at the top of the column. Similarly, the pressure at the bottom of an object submerged in a fluid is greater than at the top of the object. The pressure difference results in a net upward force on the object. The magnitude of the force is proportional to the pressure difference, and (as explained by Archimedes' principle) is equivalent to the weight of the fluid that would otherwise occupy the submerged volume of the object, i.e. the displaced fluid.

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