Um cientista para realizar um experimento, coloca um termômetro em um recipiente contendo uma porção de água, que acabou de tirar da torneira da sua casa. Supondo que o recipiente esteja num local ao nível do mar, a única leitura que pode ter sido feita pelo aluno no termômetro é:

Arock is dropped from a cliff and reaches the ground in 2.70s. at the same time another rock is thrown horizontally from the same height with initial x velocity of 0.95 m/s. what distance will in x will the second rock cover?

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.