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A system with an initial volume of 2 m is filled with water at 3 MPa, 400 deg C.
It is now cooled at constant volume to 200 deg C. This process is followed by an isothermal process ending at the saturated liquid state. Determine the total heat transfer required in kJ.
q1. a cylindrical container with a cross-sectional area of 65.2 cm2 holds the fluid of density 846 kgm3. at the bottom
if a hot air balloon floats at a constant elevation it has reached equilibrium where the local atmospheric pressure is
A perfectly reflecting flat mirror is uniformly illuminated by light striking it perpendicularly. Calculate the intensity of the light
What is the electric potential at the surface of a gold atom’s nucleus, which is assumed to be spherical? The radius of a gold nucleus is 6.6*10^-15 meters and the atomic number of gold is 79.
q1. a 1190-n uniform beam is attached to the vertical wall at one end and is supported by a cable at the other end. a
To determine the location of her center of mass, a physics student lies on a lightweight plank supported by two scales 2.50M apart, Find the students mass
A new record for running the stairs of the Empire State Building was set on February 3, 2003. If the height gain of each step was 0.20 m , and the mass of the runner was 72 kg, what was his average power output during the climb
A hydraulic jack is made with a small piston 1.2 cm in diameter that is used to move a large piston 6.1 cm in diameter. how heavy a load can he lift with the jack
What is the physics behind everyday sayings
Find the force to keep object moving.
A 4.0 kg ball is traveling at 3.0 m/s and strkes a wall. The 4.0 kg ball bounces off the wall with a velocity of 4.0 m/s. determine the average force on the ball
Four solid plastic cylinders all have radius 2.75 cm and length 6.42 cm. Find the charge of each cylinder given the following additional information about each one.
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