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1. Write down the equations for the reverse active mode by inspection without doing any algebra.
2. Are there any currents flowing in the cutoff mode? What is their magnitude if there are?
3. Obtain the saturation voltage expressions for CB and CE configurations of a n/p/n BJT by inspection of the results listed in the text for the p/n/p BJT. Estimate the magnitude and give the sign following the procedure and assumed parameter values given in the text.
air with a static temperature of 223 k entering a gas turbine engine intake at v1300ms accelerates to a new velocity vx
find the direction and magnitude of the work and heat transfer.
a three-blade helicopter blade rotates at 200 rpm. if each blade is 12 ft long and 1.5 ft wide estimate the torque
the rockwell hardness of a metal is determined by impressing a hardened point into the surface of the metal and then
A glider w ith mass m = 0.20 kg sits on a frictionless horizontal air truck, connected to a spring w ith force constant K = 5.00 N/m. You pull on the glider, stretching the spring 0.100m, and then release it w ith no initial velocity.
r-134a fills a 0.1 m3 capsule at 20oc 200 kpa. it is placed in a deep freezer where it is cooled to -10oc. the deep
A shredder is to reduce the particle size of 80% passing 10 cm to 80% passing 2 cm at a solids flow rate of 10 tonnes (10,000 kg) per hour. Size the motor for this shredder.
Draw the front view and right view and the down-view.
Consider a model of a building whose base moves as a result of an earthquake. The building can be modeled as a single-degree-of-freedom spring-mass system where the building mass is lumped on top of two beams used to model the walls of the building.
If the wall is fabricated from a high-temperature material for which k = 15 W/m · K, what is the minimum thickness L needed to ensure that the outer surface temperature does not exceed Ts,o = 1000 K? What is the collection efficiency associated wi..
two cars simultaneosly enter an intersection with 35 degrees between their headings. the car on the left weighs 5000
A 20 MW back-pressure steam turbine receives steam at stagnation pressure of 4 MPa and stagnation temperature of 300oC, exhausting from the last stage at stagnation pressure of 0.35 MPa. The turbine isentropic efficiency is 0.884, and mechanical loss..
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