please do both 1.A buoy is a solid cylinder 0.26 m in diameter and 1.20 m long. It is made of a material with a specific weight of 7.70 kN/m3 and floats in water.  Required Calculate ymc to the nearest 10th of an millimeter.  2.

1. In calibrating a 10-mL pipet, a measured volume of water was transferred to a tared flask and weighed, yielding a mass of 9.9814 g. (a) Calculate, with and without correcting for buoyancy, the volume of water delivered by the pipet. Assume that the density of water is 0.99707 g/cm3 and that the density of the weights is 8.40 g/cm3. (b) What are the absolute and relative errors introduced by failing to account for the effect of buoyancy? Is this a significant source of determinate error for the calibration of a pipet? Explain. 2. Repeat the questions in problem 1 for the case when a mass of 0.2500 g is measured for a solid that has a density of 2.50 g/cm3. 3. Is the failure to correct for buoyancy a constant or proportional source of determinate error?

The Menard-type pressuremeter consists of the probe. Describe in detail about probe.

(Buoyancy, force on plane surface) A cube, 3.5 ft on a side, weighs 3190 lb and floats half- submerged in an open tank as shown in the figure below. For a liquid depth of 10.8 ft, determine (a) the magnitude and (b) the location of the force of the liquid on the inclined section AB of the tank wall. The width of the wall is 8.7 ft. Show the magnitude, direction, and location of the force on a sketch. 10.8 ft (a) FR = enterline est YR = 3.5 ft Liquid Cube A 27° lb on Wall width ft along