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In Exercise 6 if the government applies a luxury tax of 20% per coat, how are profits affected?
Exercise 6
A fur dealer finds that when coats sell for $4000, monthly sales are 6 coats. When the price increases to $5000, the demand is for 5 coats. Assume that the demand equation is linear.
(a) Find the demand and revenue equations.
(b) If overhead is $2500 per month and the production cost per coat is $2000, find the cost equation and profit equation.
(c) Find the level of production that maximizes profit.
This bar is made of AISI 1006 cold-drawn steel and is loaded by the forces F=0.55 kN and T=25.N.m. Use both the maximum-shear theory and the distortion-energy theory to design the bar diameter D.
A current of 5A flows through a resistor connected in series with choke coil. It is supplied with 250 V , 50Hz supply . If potential difference across resistor is 125 and across choke coil is 200 volt .
Design a finite state machine that has an input (w) and an output(z). The machine is a sequence detector that produces (z =1). when the previous two values of (w) were (00 or 11); otherwise (z = 1). Assume the initial state is unknown past with (z..
In a bipolar junction transistor amplifier with a base resistor of about 10 kW and a collector resistor of about 1 kW, roughly estimate these capacitors for an audio amplifier
Assume a computer has a 16Kx18 memory, and each instruction can only occupy one memory location. How many bits should its PC have. How many different instructions could this computer have at most
In a unity feedback system, the open-loop transfer function is of the form G_ol(s)=k/(1+s/Omega_p) Calculate the bandwidth of the closed-loop transfer function. How does the bandwidth depend on k and Omega_p
Frequency Response
Calculate the size of Q3. The magnitudes of the three charges are in the exact ratios of 1 to 2 to 3.
A He-Xe mixture containing 0.75 mole fraction of helium is used for cooling of electronics in an avionics application. At a temperature of 300 K and atmospheric pressure, calculate the mass fraction of helium and the mass density.
Determine the transmission line parameters of a coaxial cable that uses aluminum inner and outer conductors with radii a = 2.5 mm and b = 5 mm, respectively, and polystyrene (which is nonmagnetic) as an insulator.
The motor whose torque-speed characteristics are are shown below drives the load shown in the diagram. Some of the gears have inertia. Find the transfer function.
Problem: A load has 10 A current at a lagging power factor of 50%. Voltage is 120 V, and frequency is 60Hz. What size capacitor must be used to bring power factor to 90%?
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