Pe fundul unui vas cu apa (napa= 4/3) de adancime 15 em se afla o sursa de lumina punctiforma. Determina raza cercului luminos care se observa pe suprafata apei (naer = 1).

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

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

A10-kg isto a of 10 m at aa0.9 kg/m.30 kg of ,at aas10-m .. ( 9.8 m/s2 g.)