Spider silk is one of the most fascinating natural materials known to humans. It is more flexible than rubber yet tougher ...

Hearing begins with the stretching of elastic molecular "springs" that open ion channels in the sensory hair cells of the ear ...

A spring has a spring constant of 3 N/m. It is stretched until it is extended by 50 cm. Calculate the energy transferred during the stretching, assuming it is not stretched beyond the elastic limit.