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Air at 25°C flows over a 10-mm-diameter sphere with a velocity of 25 m/s, while the surface of the sphere is maintained at 75°C
(a) What is the drag force on the sphere?
(b) What is the rate of heat transfer from the sphere?
(c) Generate a plot of the heat transfer from the sphere as a function of the air velocity for the range to 25 m/s.
A priority decimal-to-BCD encoder has active-LOW inputs andoutputs. If there are LOWs only on decimal inputs 2, 5, and 8, what BCD code appears on the outputs
Find the system transfer function of a causal LSI system whose impulse response is given byh[n] = (-0.5)^n-1 sin[0.5(n-2)]u[n-2] and express the result in positive powers of z. Hint: The transfer function is just the z-transform of impulse respon..
Reduce the two functions given below and implement them using fewest 8x2 ROM's. Draw a neat labeled diagram showing interconnection between the ROM's address and data lines, and content of each ROM.
Two points are given P1 (1,0,1) and P2 (6,-3,0) Calculate: a) The scalar components of the vector pointing from P1 to P2. b)The scalar components of the vector pointing from the origin to P1. c) The magnitude of the vector pointing from P1 to P2 ..
Describe what cross-over distortion is. What types of amplifiers is itmost prevalent in. How can it be controlled. When is itmost troublesome. How might it's level be specified inan amplifier design.
A voltage of 60cos(4πt) V appears across the terminals of a 3 m-F capacitor. Calculate the current through the capacitor and the energy stored in it from t=0 to t=0.125 sec.
An electron is moving with a velocity of 2*10^6 cm/s. Determine the electron energy (in eV)), momentum, and de Broglie wavelength (in angstrom).
Compare the field at the center of a Helmholtz coil pair and at the center of a solenoid, if both use the same total length of wire and carry the same current.Take the solenoid length equal to the spacing between the Helmholtz coils
What is the smallest integer number of time constants required for an exponential to decay to less than 10 percent of its initial value what percentage of its initial value is it at this time
Write a program in C that reads 20 integers from the user and sums the odd numbers together and the even numbers together. The program is to output the ratio of the odd numbers to the even numbers with a precision of up to 3 decimal digits.
Suppose that the sequence 110010011 is used as a synchronization sequence preamble to a data packet. Propose a method that can be used to allow the channel to distinguish the synchronization sequence from an identical data sequence within the pack..
You are driving your car, and the traffic light ahead turns red. You apply the brakes for 2.70 s, and the velocity of the car decreases to + 4.71 m/s. The car's deceleration has a magnitude of 3.41 m/s2 during this time. What is the car's displace..
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