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Application: The dipole antenna. A dipole antenna is 1 m long and is fed with a current of amplitude 2 A. Find the radiated power of the antenna:
(a) At 540 kHz (lowest AM band frequency).
(b) At 1.6 MHz (highest AM band frequency).
(c) To what do you attribute the difference between the radiated powers in (a) and (b)?
a power drive shaft is designed with a safety factor of 8. the shaft is subjected only to torsional load torque. if the
Compute the corresponding volume flow rate if the diameter at A is 5.0 cm. The phenomenon that occurs at a when p2 falls to nearly zero is known as cavitations. The water vaporizes into smallbubbles.
Stanford University is adding on to their biological research facility. The new facility will be 40 ft x 40 ft x 8 ft and can house 3000 laboratory mice. The indoor conditions must be maintained 75 F, 60% relative humidity when the outdoor conditions..
a lake can freeze even if the temperature is above freezing. assuming a gentle breeze wind produces a convective heat
A certain servomechanism system has dynamics dominated by a pair of complex pole and no finite zeros. The time domain specifications on the rise time (tr), percent overshoot (Mp)m and settling times are given by: tr
a light inelastic string of length 1.5m fixed at one end carries a particle p of mass 4 kg at the other end. if the
saturated water vapor in a closed sysytem is condensed by cooling it at constant pressure to a saturated liquid at
ME 406 Manufacturing and Design - Provide type of matrix and fiber with fiber volume fraction. Provide analysis used to choose volume fraction. If computer model is used for analysis then present it.
a reversible carnot heat engine has 1.00 lbm of air as the working fluid. heat is received at 740 degrees f and
an industrial process requires an atmosphere having a rh of 88.4 at 22 degree c and involves a flow rate of 2000 m3h.
an adiabotic nozzle handling air ideal gas with constant specific heats has operating conditions as followsa1
If the maximum circumferential stress on the inside surface of the ring is limited to 240 MN/m2, determine the maximum speed at which the assembly can be rotated. It may be assumed that no relative slip occurs between the shaft and the ring
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