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An electronics assembly firm buys its microchips from three different suppliers; half of them are bought from firm X , whilst firms Y and Z supply 30% and 20%, respectively. The suppliers use different quality-control procedures and the percentages of defective chips are 2%, 4% and 4% for X , Y and Z , respectively. The probabilities that a defective chip will fail two or more assembly-line tests are 40%, 60% and 80%, respectively, whilst all defective chips have a 10% chance of escaping detection. An assembler finds a chip that fails only one test. What is the probability that it came from supplier X ?
A monatomic ideal gas expands from 1.00 m^3 to 2.5 m^3 at a constant pressure of 2.5 x 10^5 Pa. find the change in internal energy of the gas
An ultrasound unit sends a 2.4 MHz sound wave into a 35cm long tube filled with an unkown liquid. What is the speed of the sound in the liquid
A 99919 lb force is applied to a surface that measures 77 in long and 84 in wide. Find the pressure exerted on surface by force in both psi and pa
A block of mass 2 kg is kept at rest as it compresses a horizontal massless spring (k = 120 N/m) by 8.52 cm. As the block is released, it travels 0.611 m on a rough horizontal surface before stopping. The acceleration of gravity is 9.8 m/s2 . Calcula..
The range of human hearing extends from approximately 20 Hz to 20000 Hz. Find out the wavelengths of these extremes while speed of sound in air is equal to 348 m/s.
Suppose that a high-energy particle accelerator accelerates an electron to such great speed that its relativistic mass becomes as large as the rest mass of a proton. Calculate the speed of this electron
A tuning fork with a frequency of 440 Hz is held above a resonance tube that is partially filled with water. Where will the nodes and antinodes occur
What is the magnitude of apparent weight of a 83-kg astronaut 3200km from the center of the Earth's Moon in a space vehicle accelerating toward the Moon at 3.8 m/s^2.
At a certain time an object's position was observed to be 10 meters due west. 4 seconds later the position was observed to be 5 meters due east
the current in the windings of a toroidal solenoid is 2.400 a. there are 500 turns and the mean radius is 25.00 cm. the
Two planes approach each other head-on. Each has a speed of 790km/h , How much time do the pilots have to take evasive action
two movers push horizontally on a refrigerator. one pushes due north with a force of 150 n and the other pushes due
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