The spherical face shield of an astronaut’s helmet is made from polycarbonate with a yield strength of 108 MPa. The shield has an outside diameter of 360 mm and a thickness of 5.3 mm. If the shield is successfully pressure tested to 810 kPa on Earth, determine the factor of safety with respect to yielding.

The spherical face shield of an astronaut’s helmet is made from polycarbonate with a yield strength of 116 MPa. The shield has an outside diameter of 370 mm and a thickness of 4.5 mm. If the shield is successfully pressure tested to 875 kPa on Earth, determine the factor of safety with respect to yielding.

A point in a structural member is subjected to the following stress magnitudes. The stress directions are shown in the image. Determine εz.|σx| = 80 MPa|σy| = 40 MPa|τxy| = 85 MPa

A point in a structural member is subjected to plane strain. Determine the maximum shear strain in the x-y plane.εx = –150 μεεy = –640 μεγxy = –300 μrad

A point in a structural member is subjected to the following stress magnitudes. The stress directions are shown in the image. Determine the orientation of the principal planes, θp.|σx| = 85 MPa|σy| = 20 MPa|τxy| = 55 MPa

A driver accidentally bumped a fire hydrant creating a bending moment of 860 N·m in the pipe below. The pipe has an inside diameter of 155 mm and a wall thickness of 7 mm and is pressurized to 380 kPa. Determine the largest normal stress along the length of the pipe.

A Covid-19 positive patient has been brought to the ED by the paramedics in respiratory distress. The patient is suspected of having acute respiratory distress syndrome (ARDS). What intervention should the nurse first anticipate?

After the nurse gives IV atropine to a patient with symptomatic sinus bradycardia, which finding indicates that the medication has been effective?

 If lucky people earn Ylucky=100 and unlucky people earn Yunlucky=50 with a 50/50 chance symmetrical luck component μ, s.t.μlucky= -μunlucky what is the value of μ?

A nurse is caring for a patient who is being treated for Covid-19 pneumonia and ARDS and requires a mechanical ventilator. The physician orders an arterial blood gas, which provides the following results: pH = 7.18, pCO2= 48 mmHg, HCO3= 29 mEq/L, SaO2=92%. Based on these results, which of the following best describes this patient’s condition?