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Carbon dioxide enters an adiabatic nozzle steadily at 1 MPa and 500°C with a mass flow rate of 6000 kg/h and leaves at 100 kPa and 450 m/s. The inlet area of the nozzle is 40 cm2 Determine (a) the inlet velocity and (b) the exit temperature.
A spring with an unstrained length of 0.069 m and a spring constant of 2.7 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring.
A crane drops a 1.0 kg steel ball onto a steel plate. The balls speed just before impact is 2.0m/s. what is the bounce back speed right after the impact
Derive the 5 volt reference from a 5 volt source. Apply a 1 KHz sine wave. Vary the amplitude of the input voltage and sketch the input and output waveforms.
A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead the pipe's diameter is 56.1 cm and the flow speed of the petroleum is 13.1 m/s. what is the pipe's diameter at the refinery
A cylinder of radius a = 9.4 cm and height h = 9.5 cm is aligned with its axis along the y-axis as shown. What is the total flux ? that passes through the cylindrical surface? Enter a positive number if the net flux leaves the cylinder and a negat..
The starship Enterprise speeds by you at a speed of 0.960c. It is measure in your frame to be 100 m long. What will be it's length at rest
A teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 13.1 rpm in 10.7 s. what force is required at the edge
A 1000kg truck is driving up a 10 degree slope. A 10g ornament hangs by a massless string from the rear-view mirror in truck.
An aluninum wire has a length of 8 m and a cross-sectional radius of 0.004 m. Calculate the weight of a hanging object
Mounted on a low-mass rod of length 0.52 m are four balls. Two balls each of mass 0.89 kg, are mounted at opposite ends of the rod. What is the moment of inertia of the device about its center
A scuba tank has a volume of cm2. For every deep dives, the tank is filled with (by volume) pure oxygen and 50% pure helium. What is the ratio of the rms speeds of the two types of molecules
A student could either pull or push, at an angle of 30? from the horizontal, a 55kg crate on a horizontal surface, Calculate the minimum work required for both pulling and pushing
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