Un gas ocupa un volumen de 200ml a una temperatura de 40°c¿que volumen ocupara si se disminuye la temperatura en 30°c y se mantiene una presion constante

Identify the type of synthetic material used in each object

How to calculate voltage drop in a series circuit

Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)