Dois corpos, A e B, de massas diferentes (mA = 3 mB) foram lançados verticalmente para cima com velocidades iniciais diferentes. Um deles (A) atingiu uma altura quatro
vezes maior do que o outro (B). Desprezando as resistências impostas ao movimento,
quantas vezes é a sua velocidade inicial superior a do outro?
a) V0(A) = 2 V0(B)
b) V0(A) = 4 V0(B)
c) V0(A) = V0(B)
d) V0(B) = 2 V0(A)
e) V0(B) = 4 V0(A)

An air-standard stirling cycle operates with a maximum pressure of 600 psia and a minimum pressure of 10 psia. the maximum volume of the air is 10 times the minimum volume. the temperature during the heat rejection process is 100°f. calculate the specific heat added to and rejected by this cycle, as well as the net specific work produced by the cycle. use constant specific heats at room temperature. the properties of air at room temperature are r

Convection occurs when thermal energy is transferred by the movement of

At the negative terminal of the battery the electron has electric potential energy. what happens to this energy as the electron jumps from the negative to the positive terminal?