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A landscaper tries to plumb a tree by applying a 240-N force as shown.
(a) Replace that force with an equivalent force-couple system at C.
(b) Two helpers attempt to plumb the same tree, with one applying a horizontal force at C and the other pulling at B. Determine these two forces if they are to be equivalent to the single force of part a.
How will the reading of two ammeters compare if they are placed in series in a circuit Will the answer to this question be different if the resistance of the two ammeters is not the same
On a certain aircraft, the main control circuit on an autopilot fails with probability p. A redundant backup circuit fails independently with probability q. The aircraft can fly if at least one of the circuits is functioning.
A PN junction has Na=10^19 cm^-3 and Nd= 10^16 cm^-3. a) with V=0 what are the minority carrier densities at the depletion region edges Assume V= 0.6 V for (b)-(d). b) What are the minority carrier densities at the depletion region edges
A voltage source is in series with a 1 MΩ resistor and a100 picofarad capacitor. The voltage source is 10cos(2π*10^3t - π/6). What is the voltage across the capacitor
design a combinational circuit that has four inputs (ABCD) and one output(Z). The output equals one when the Gray coded number represented by ABCD is less than five. Reduce the function using SOP or POS forms and then partially factor if possible.
If you were the operator for an squirrel cage induction machine, what options could you consider to control speed Describe and mention pluses and minuses of each.
Contrast the electron and hole drift velocities through a 10 um (micro meter) layer of intrinsic silicon across which a voltage of 5V is imposed. Let up = 480cm2/Vs and un=1350cm2/Vs.
A capacitor bank is required that can be charged to 5 kV and store at least 250 K of energy. Design a series/parallel combination that meets the voltage and energy requirements using 20-μF capacitors each rated at 2 kV max.
Analysing an RF splitter and power levels, A splitter is a device that has a single input and several outputs. It is used to send a signal to several different locations
(c) Use a single 4-to-1 multiplexer with an active low enable and an active high output and a minimum of additional gates. Show the function expansion both algebraically and on a Karnaugh map.
The voltage and current at the terminals of the circuit element are zero for t = 0 they are v = (10,000t+ 5)e^-400t V. and i = (40t + 0.05)e^-400t A. a) at what instant of time is maximum power delivered to the element
You are working with a design team on a new product and are assigned to design the power supply. The requirements for the power supply are as follows: Input AC: 115 V AC +- 10%, 50-60 Hz Outputs: +5 V DC at 100 ma, +-12 V DC
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