Em um longo trecho retilíneo de uma estrada, um automóvel se desloca a 100 km/h e um caminhão a 80 km/h, ambos no mesmo sentido e em movimento uniforme. Em determinado instante, o automóvel encontra-se 50 km atrás do caminhão. O intervalo de tempo necessário para que o automóvel alcance o caminhão é cerca de:

An object has a weight of 500 on earth what is the mass of this object

Disney, viacom and aol time warner are examples of

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.