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Suppose that under severe operation conditions, the lifetime, in months, of a transisitor is exponentially distributed with parameter ? = 0.2.
a. Find the probability that such a transistor lasts longer than 8 months.
b. Find the probability that the lifetime of a transistor is between 4 and 10 months.
c. Suppose 10 transistors are operating independently. Find the probability that at least 2 of them last longer than 8 months.
d. Find the probability that more than 8 fail before 10 months.
Neon gas at 50 degrees C in a vertical cylinder of diameter 150 mm has a 6 kg frictionless piston mounted. The outside pressure is 98kPa and the neon volume is 4000cm^3. Find the mass of neon.
design a horizontal curve for a two-lane road. The road has 12-ft. lanes. Due to expansive excavation, it is determined that a maximum of 34 ft. can be cleared from the road's centerline toward the inside lane to provide for stopping sight distanc..
equation for pressure in bottom layer of a 2 layer fluid is: pressure,p =( specific weight of fluid 1,y1*thickness of fluid 1,h1) + ( specific weight of fluid 2,y2 * ( depth below the free surface at which the pressure is being determined, h - thi..
calculate the amplitude F0 of the sinusoidal excitation force that is necessary to produce a steady-state vibration with a velocity amplitude of 10 m/s at resonance
Air at 200 kPa and 950 K enters an adiabatic nozzle at low velocity and is discharged at a pressure of 80 kPa. If the isentropic efficiency of the nozzle is 92%, determine the temperature and velocity of the air at the exit.
A company manufactures a brand of light bulbs with a lifetime in month that is normally distribute with a mean=3 and a variance=1. A consumer buys a number of these bulbs with the intention of replacing them successively as they burn out.
A vehicle is traveling on a curved section of a road of radius 2500 feet at a speed of 60 mi/h. The motorist suddenly applies their brakes, causing the automobile to slow down at a constant rate. After 8 seconds the speed has been reduced to 45 mi..
Write an essay on the topic "application of geophysical techniques using electromagnetic induction as a tool for sustainable soil and water management of agricultural fields in the humid tropic Caribbean. components:
A stone A is dropped from rest down a well, and in 1 second another stone B is dropped from rest. Determine the distance between the stones another second later.
Generate a table of conversions from degrees to radians. The first line should contain the value for 0 degrees and last line should contain the value for 360 degrees. allow user to enter the increment to use between the lines in the table
The particle has a mass of 0.6 and is confined to move along the smooth horizontal slot due to the rotation of the arm .Determine the force of the rod on the particle and the normal force of the slot on the particle when = 35.
An irrigation channel is constructed of earth and is 8.1km long and has a capacity of 10 m^3/s for a flow depth of 2m. The cross section is trapezoidal with a bid width of 8 m and side slopes of 2 horizontal to 1 vertical.
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