Ablock of wood is floating in water; it is depressed slightly and then released to oscillate up and down. assume that the top and bottom of the block are parallel planes which remain horizontal during the oscillations and that the sides of the block are vertical. show that the period of the motion (neglecting friction) is 2π ph/g, where h is the vertical height of the part of the block under water when it is floating at rest. hint: recall that the buoyant force is equal to the weight of displaced water.

Explanation:

Equilibrium position in y direction:

W = Fb (Weight of the block is equal to buoyant force)

m*g = V*p*g

V under water = A*h

hence,

m = A*h*p

Using Newton 2nd Law

Hence, T time period

T = 2*pi*sqrt ( h / g )

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d

in physics zero. in muscle fatigue could be high