Momentum Equation Q1: What force components F, Fy are required to hold the block box in figure (1) below stationary all pressure are zero gauge, water density 1000 Kg/m³. (876.41 N, 66.817 N) Q4=0.02 m³/sec V4= 45 m/sec QI Q₁=0.03 Fy 60 m³/s V₂=18 m/s Q₁=0.024 m³/s V₁ = 36m/s LEX Fx Q₂ = 0.03 m³/s V₂=30m/s

M T M H₂0 2 blocks in water The figure shows two blocks of wood (A and B) connected by a string in a tank of water. The masses are equal (M 0.5 kg). 75% of block A is under water. The volume of block B is 454 cm^3. (a) Determine the tension force of the string. (b) Determine the density of block A. =

P6.2 A 1:80 scale model of an aircraft was tested in air at 20C°moves with speed 40m/s a- What is the speed model if its submerged in water at 26C°, Vair = 14.86 * 10-6 m Vwater = 0.864 * 10-6" m2 [V=2.325 m/s] b- Determine the air resistance to the prototype if model water resistance is 7.43N. [Fp=2.643 N]

In this question, assume the "additional displacement" is in the positive u direction. A mass weighing 16 lbs stretches a spring 8 inches. The mass is in a medium that exerts a viscous resistance of 1 lbs when the mass has a velocity of 2 ft/sec. Suppose the object is displaced an additional 5 inches and released. Find an equation for the object's displacement, u(t), in feet after t seconds. u(t) =