A una presión de 2 atm un gas ocupa 40 L. Luego, isotérmicamente, su volumen se reduce a 16 L. Finalmente, se efectúa un proceso isocórico en el que su presión aumenta a 3 atm y su temperatura final es de 127°C. ¿Cuál esla temperatura inicial del gas? Utilizar la fórmula de la ley combinada de los gases.

Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?