The information on a can of pop indicates that the can contains 355 ml. the mass of a full can of pop is 0.369 kg, while an empty can weighs 0.153 n. determine the specific weight, density, and specific gravity of the pop and compare your results with the corresponding values for water at 20° c. express your results in si units. (a) what is the relation between the weight w of an object, the mass m, and gravitational attraction g? w = (b) what is the weight of the can with pop at sea level in newtons (n)?

As part of an industrial process, air as an ideal gas at 10 bar, 400k expands at steady state through a valve to a pressure of 4 bar. the mass flow rate of air is 0.5 kg/s. the air then passes through a heat exchanger where it is cooled to a temperature of 295k with negligible change in pressure. the valve can be modeled as a throttling process, and kinetic and potential energy effects can be neglected. (a) for a control volume enclosing the valve and heat exchanger and enough of the local surroundings that the heat transfer occurs at the ambient temperature of 295 k, determine the rate of entropy production, in kw/k. (b) if the expansion valve were replaced by an adiabatic turbine operating isentropically, what would be the entropy production? compare the results of parts (a) and (b) and discuss.

Which are true about beta reactions? there will be more than one answer. a. it has no change b. it doesn't change the mass of the number c. it has a mass of 0.0005 atoms d. it causes transmutation.

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?