Please answer this problems.

Problem 2

The radius of the aorta is about 1 cm and the blood flowing through it has a speed of about 30 cm/s . Calculate the average speed of the blood in the capillaries given the total cross section of all the capillaries is about 2000 cm^2.

Problem 3:

A hydraulic lift has the following specification:

Area of small cylinder A1 = 0.0042 m^2, Area of large cylinder A2 = 0.064 m^2. If we want to lift a 1200 N object atop the large cylinder, how much input force must we apply to the small cylinder?

Problem 4:

What is the buoyant force acting on small boat that displaces 90 m^3 volume of water? (1.0 m^3 of water weighs 9 800 N).

Problem 5:

A 40-cm tall glass is filled with water to a depth of 30 cm. a. What is the gauge pressure at the bottom of the glass? b. What is the absolute pressure at the bottom of the glass?

Problem 6:

A box has a weight of 150 lbs and the bottom of the box is 12 in^2. What is the pressure the box exerts on the floor in Pascal?