4.15 Compute the displacements, reactions, and internal forces for the system shown. E = 200,000 MPa. 4 m 40 kN -4 m -8m d b I =50x105 mm² A = 4×10³ mm² Problem 4.15 5 m [I =200 × 10 mm² =6×10³ m²

A structural member with a rectangular cross section as shown in the accompanying figure is used to support a load of 2500 N. What type of material do you recommend be used to carry the load safely? Base your calculations on the yield strength and a factor of safety of 2.0.

Obtain the values of vapor pressures of alcohol, water, and glycerin at a room temperature of 20 C.

An astronaut has a mass of 68 kg. What is the weight of the astronaut on Earth at sea level? What are the mass and the weight of the astronaut on the Moon, and on Mars? What is the ratio of the pressure exerted by the astronauts shoe on Earth to Mars?