we neglect the air resistance acting on the balloon of a volley-ball .A player hits the baloon that is situated at point A and throws it with velocity v0 of magnitude 15m/s making an angle 20(degree) with horizontal. The point A is at a height of H=3m from the ground the net is at D=12m from the player ,the height of the net is H=2.4m. 1)show that the service succeeds 2)A player situated at 2m from the net wants to intercept the balloon. at which height H should he put his hands in the plane of the trajectory of the balloon

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.