Physics, 25.05.2020 09:58 arguellesjavier15
Atividade 1 - Um caminhão de 20 m de comprimento desenvolve uma velocidade constante numa estrada retilínea e plana. Ele demora 10 s para atravessar uma ponte de 180 m de extensão. Calcule a velocidade do caminhão, em km/h.
Answers: 2
Physics, 22.06.2019 16:00
Agroup of monkeys is trying to cross the river in a rowboat. the maximum buoyant force on the rowboat is 2,000 n. the weight of the rowboat is 1,000 n. each monkey has a weight of 150 n. how many monkeys can safely cross in the rowboat at one time? explain your reasoning, including any calculations you used to find the answer.
Answers: 1
Physics, 22.06.2019 16:00
At what time will the interfering waves have an amplitudeof zero?
Answers: 1
Physics, 22.06.2019 19:20
Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
Answers: 1
Atividade 1 - Um caminhão de 20 m de comprimento desenvolve uma velocidade constante numa estrada re...
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