Num determinado equipamento industrial, um líquido de calor específico 0,50 cal/g.°C, entra a 20 °C e sai a 80 °C. Se a vazão desse líquido no equipamento é de 50 kg/min, a potência térmica é, em kcal/min, de:

The person who proposed evolution as a scientific theory was

What can be predicted about the reflected rays? They will not follow the law of reflection. Each will reflect at the exact same angle of reflection. They will all travel in the same direction.

Peter starts out from a restaurant traveling at 24 mph. Alex leaves the restaurant 15 minutes later, traveling at 36 mph in the same direction.

What would happen to the speed of a sound wave if it moved from a cooler room to a warmer one

A 5.5 kg box is pushed across the lunch table. the net force applied to box is 9.7 N. what is the acceleration of the box?

The puzzle box is traditionally associated with the work of

A 0.95-kg sample of water at 11°C is in a calorimeter. You drop a piece of steel with a mass of 0.39 kg at 212°C into it.

Let the magnitudes of two displacement vectors be 4 m and 8 m, respectively. If the two vectors are added, the magnitude of the resultant vector. A. is exactly equal to 4 m. B. is exactly equal to 12 m. C. is greater than 12 m. D.

justin pushes basket of toys with 50N of force for 3 meters in 100 seconds. how much work did he do on the basket

In general, what can be said about metals.