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Steam enters at 4 MPa and 400 degrees C enters a nozzle steadily with a velocity of 60 m/s, and it leaves at 2 MPa and 300 degrees C. The inlet area of the nozzle is 50 cm^2, and the heat is being lost at a rate of 75 kJ/s. Determine the mass flow rate and exit velocity of the steam.
A nonconducting solid sphere of radius R carries a volume charge density that is proportional to the distance from the center: ? = Ar for r ? R, where A is a constant; ? = 0 for r > R. Find the total charge in the sphere
An air-core solenoid with 80 turns is 10.64 cm long and has a diameter of 1.09 cm. How much energy is stored in its magnetic field when it carries a current of 0.44 A
What is a stopping distance
Blocks of mass 20, 80, and 240 kg are lined up from left to right in that order on a frictionless surface so each block is touching the next one. What is the magnitude of the force that the left block exerts on the middle one
Suppose a capacitor in a video camera has a capacitance of 26.0 ?F, how much potential energy is stored in the capacitor
Fully stripped (all electrons removed) oxygen (16O) ions are accelerated from rest in a particle accelerator using a total potential difference of 10.0 MV. What is the total power the beam dump has to absorb
What is the vertical force on the support closest to the piano.
The density of a 3.0-m long rod can be described by the linear density function ?(x) = 105 g/m + 10.9x g/m2. Determine the center-of-mass coordinate
An inductor has a 57.0-? reactance when connected to a 60.0-Hz source. What is the maximum current in the inductor
define the speed with which the cart reaches positions 3, 2, and 1 (in that order). Neglect friction. Let g = 9.81 m/s2.
q. an ideal spring with a stiffness of 379nm is attached to a wall and its other end is attached to a block that has a
A car starts from rest at a stop sign. It accelerates at 4.0 m/s2 for 9 seconds, coasts for 6 s, How far apart are the stop signs
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