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The angle of the reflected light n=2.42 whose perfectle polarized? Find the reflectance of TE and TM of that angle
A 1.6 m tall girl stands 3.2 m from a convex mirror . What is the focal length of the mirror if her image appears to be 0.28 m tall?
A 50 cm horizontal straight wire is place in a uniform magnetic field of magnetic field strength 0.5 T which is directed into the page Determine the magnitude and direction of the current to enable the wire remain float in equilibrium. Given the mass of the wire is 2 g.
Explain the motion of rigid body with a fixed point under no forces
Two cars, A and B, start at the same point. A travels north at 10 mph and B at 8 mph due
southwest. Find in what direction and rate by which car B is moving, with regards to car A.
A fluid temperature rise of 18°C in the fluid cooled condenser is equivalent in °F to:
Calculate de broglie wavelength and velocity of an electron carrying kinetic energy 3keV
4. An automobile tire initially contains 0.25 lbm of air at 30 psig, 70 OF and have an automatic valve
that releases air whenever the pressure exceeds 32 psig. After driving, the temperature of air inside
rises to 120 OF, (a) what mass of air escapes to the atmosphere? lbm, (b) What is the tire gage
pressure when the remaining air inside has returned to 70 OF? psig
3. A steady state, steady flow compressor draws in 236 liters per second of air whose density is
1.268 kgm/m3 and discharges it with a density of 4.88 kgm/m3. At suction P1= 103.39 kPaa; at
discharge, P2 = 551.428 kPaa. The increase of specific internal energy is 78.45 kJ/kgm and the heat
from the air by cooling is 30.17 kJ/kgm. Neglecting the change in potential and kinetic energies,
determine the work in kJ/min.
2. A tank, initially empty, is in the form of a right circular cylinder with hemispherical ends. The overall
length of the cylinder tank is 3 meters and the diameter of the hemisphere is 1 meter. If a pump
discharges a fluid, whose density is 1.2 kgm/Liter, in this tank at a rate of 300 liters per minute
determine a.) Weight of liquid inside the tank after 5 minutes, KN, and b) total time to fill the tank,
min.
