A single-lens reflex camera is a camera that has a reflecting mirror that reflects the incoming light in such a way that the scene viewed by the viewer through the viewfinder is the same as what's framed by the lens; professional photographers often choose this type of digital camera.

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

What is the primary force that suspension bridges use cables to hold their spans up? a. tension force b. resistance force c. normal force d. elastic force e. applied force

Abeverage can is made of 3004-h19 aluminum alloy (elastic modulus 69 gpa, tensile yield strength 285 mpa, density 2.72 g/cm^3). the dimensions on the can are approximated as a thin-walled cylinder with a height of 4.83 inches, diameter of 2.60 inches. empty the can has a mass of 14.2 g. determine: a. the wall thickness of the cylinder b. assuming a pinned-pinned condition what is the critical load? c. assuming a fixed-fixed condition what is the critical load?