1.A solid wooden cube (.5*.5*.5 m^3) is floating in water and 0.2 of the cube extends above the water surface. Determine the specific weight of the wood.
2.A 5000 lb truck is being used to lift a 1000 lb boulder B that is on a 200lb pallet A. Knowing the acceleration of the truck is 1ft/s^2, determine a) the horizontal force between the tires and the ground, b) the force between the boulder and the pallet
3.H= .1 cm and V= 1 cm/s. Pressure is atmospheric throughout. It asks me to find the shear stress for air and water at 20 Celcius, then to describe if the Temperature being raised to 80 will cause the shear stress to increase or decrease. Please help! We haven't covered the material yet.