While testing the energy generated by a
liver implant assist device, Diana lost her
of computer crash. She saw a work formula on a piece of paper and wonders
if this is the work function of the device.
- The expression of the liver implant assist device is
w(t) = 17 - 15t + 9t2 - t3
- The unit for work, power and time is mJ (mil-Joules), mw (mil-watts),
and year respectively.
- The liver implant assist device needs to have positive energy
generating rate (power) when the device starts to work.