You add 400 ml of water at 30c to 100 ml of water at 80c. what is the most likely final temperature of the mixture?

An ambulance emits a frequency of 450 hz from its siren. what frequency is heard by a man as the ambulance moves toward him? less than 450 hz more than 450 hz 450 hz 0 hz

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25? , b) el tiempo que el balón permanece en el aire.