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Suppose that independent missiles A, B, C have probabilities .4, .5, and .6 of hitting the enemy's headquarters, respectively. Assume that the enemy's headquarters will be destroyed with a probability .3, if hit by a single missile, .6 if hit by two missiles, and 1 if hit by all three missiles.
(a) Find the probability that the headquarters is destroyed.
(b) Find the probability that the headquarters is destroyed by a single missile knowing that it is destroyed.
(c) Find the probability that the headquarters is destroyed by missile A knowing that it is destroyed.
A candidate material for a turbine blade application oxidizes by diffusion of metal atoms through the oxide to the metal surface, where metal and oxygen react to form the oxide. After 10 hours at 550*C, an oxide layer 8µm thick has formed.
Find the magnitude of the electric field at all points in space both inside and outside the slab, in terms of x, the distance measured from the central plane of the slab. What is the field for x = 1.00 cm What is the field for x = 8.00 cm
A permanent magnet DC motor has an armature resistance of 0.45 ohm and when a voltage of 120 V is applied to the motor it reaches a steady-state speed of rotation of 25 rev/s and draws 35 A.
The dimmer knob is adjusted such that it applies voltage to the load during the initial 28 % of each half cycle of the standard 120V/60 Hz AC voltage. Find the real (average) power dissipated on the load in watts.
A delta connected load consists of three identical impedances Z=45 at 60 degrees per phase. It is connected to a three phase, 208-V source by a three phase feeder with conductor impedance Zfeeder=(1.2+j1.6) Ohms per phase.
A sample of radiocactive material undergoes decay such that the number of atoms N(t) remaining in the unstable state at time t is related to the number No at t = 0 by the relation N(t) = No exp(t\tau)
A 6-bit DAC has an input 1001012 and uses a 10.0-V reference.
The excess charge in a certain medium decreases to one-third its initial value in 20s. (a) If the conductivity of the medium is10^(4)S/m, what is the dielectric constant of the medium(b) What is the relaxation time
Suppose the information portion of a packet contains 10 bytes consisting of the 8- bit unsigned binary ASCII representation of string "Link Layer".
A temperature sensor has a static transfer function of 0.15mV/degrees C and a time constant of 3.3 s. If a step change of 22 degress C to 50 degress C is applied at t = 0, find the output voltages at 0.5s, 2.0s, 3.3 s, and 9s.
(1) If you have a transformer that is not in a circuit, how can you tell/determine what the ratio is (2) How do you tell if a diode is forward or bias. How much voltage is assumed dropped across a forward biased silicon diode.
You have two biased coins. Coin A comes up heads with probability 1/4. Coin B comes up heads with probability 3/4. However, you are not sure which is which so you flip each coin once where the first coin you flip is chosen randomly.
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