Q2) A car travelled 20km to east then 30 km to west in a total time of 0.5 h .find a) the distance
b) the displacement
c)the speed
d) the velocity

Compare the maximum rate of heat transfer to the basal metabolic rate by converting a bmr of 88 kcal/hr into watts. what is the value? from this comparison you should see why the body can accommodate a modes amount of activity in hot weather but strenuous activity would increase the metabolic rate above the body's ability to remove heat [12].