Factors Affecting the Natural Frequency. The actual frequency at which an object will vibrate at is determined by a variety of factors. Each of these factors will either affect the wavelength or the speed of the object. an alteration in either speed or wavelength will result in an alteration of the natural frequency.
Eight vital organs can be donated: heart, kidneys (2), pancreas, lungs (2), liver, and intestines. Hands and faces have also recently been added to the list. Tissue: cornea, skin, heart valves, bone, blood vessels, and connective tissue.
Most organ and tissue donations occur after the donor has died. But some organs and tissues can be donated while the donor is alive. Nearly 6,000 living donations take place each year. That's about 4 out of every 10 donations. Most living donations happen among family members or between close friends.