A68 kg hiker walks at 5.0 km/h up a 9% slope. the indicated incline is the ratio of the vertical distance and the horizontal distance expressed as percentage.

what is the necessary metabolic power?

hint: you can model her power needs as the sum of the 380 w power to walk on level ground plus the power needed to raise her body by the appropriate amount. assume that the efficiency of the body in using energy is 25%.

Newton's law of cooling states that the rate of change in the temperature t(t) of a body is proportional to the difference between the temperature of the medium m(t) and the temperature of the body. that is, startfraction dt over dt endfraction equals upper k left bracket upper m left parenthesis t right parenthesis minus upper t left parenthesis t right parenthesis right bracket , where k is a constant. let kequals0.04 left parenthesis min right parenthesis superscript negative 1 and the temperature of the medium be constant, m(t) font size decreased by 3 equivalent font size decreased by 3 294 kelvins. if the body is initially at 369 kelvins, use euler's method with hequals0.1 min to approximate the temperature of the body after (a) 30 minutes and (b) 60 minutes.