quando o brasileiro Joaquim Cruz ganhou a medalha de ouro nas olimpíadas de Los Angeles, correu 800m em 100s. Qual foi sua velocidade média?​

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.

In which of the following is positive work done by a person on a suitcase