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What is the steady state rate of heat flow through a pane of glass that is 40.0 cm by 30.0 cm with a thickness of 4.00 mm when the outside temperature of the glass is -10.0oC and its inside temperature is 25.0oC? The thermal conductivity of glass is 0.105 W/(mΩK), the specific heat of glass is 0.180 cal/(gxoC), and 1 cal = 4.190 J.
A brick is thrown upward from the top of a building at an angle of 45° to the horizontal and with an initial speed of 10 m/s. If the brick is in flight for 2.8 s, how tall is the building.
The bumpers on a train engine consist of two springs. If the 2 x 105 kg train engine is travelling at 15 m/s, What is the spring constant of the bumper springs
The efficiency of a Carnot engine is 27%. The engine absorbs 795 J of heat per cycle from a hot reservoir at 499 K. Determine the heat expelled per cycle and the temperature of the cold reservoir.
Calculate the capacitance of two flat metal pie pans 22.0 cm in diameter separated by 2.1 mm
A block of mass m1 = 0.420 kilogram is released from rest at the top of a curved shaped, frictionless wedge of mass m2 =3.00 kilogram, Find what is the height h of the wedge
A flask disk 1.0 diameter is oriented so that the plane of the disk makes an angle of pi/6 radians with a uniform electric field. If the field strength is 147 N/C find the electric flux through the surface.
two coconuts fall from rest at the same time one from a tree twice as high as the other.1-if the coconut from the
Derive equations to compute component fugacity coefficients in a binary mixture using the virial equation of state truncated after the second virial coefficient. The mixture second virial coefficient is given as B = Y1B1 + Y2B2 + Y1Y2? 12 where? 12 =..
What must be the distance in meters between point charge q1 = 26.8 µC and point charge q2 = -58.7 µC for the electrostatic force between them to have a magnitude of 6.69 N
a 600 ton Boeing business jet is flying at 500 mph at a constant altitude of 35,00 ft. what is the lifting force acting on the jet provided by the air
A 190 g block hangs from a spring with spring constant 15 N/m. At t=0s, the block is 13 cm below the equilibrium point and moving upward with a speed of 98.0 cm/s.
Two wires in figure P19.5 carry currents of 3A and 5A in the direction indicated (out of the page). a) find the direction and the magnitude of the magnetic field at a point midway between the two wires. b) find the magnitude and the direction of the ..
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