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A bead of mass m = 5.0 kg is released from point A and slides on the frictionless track shown above. A bead of mass m = 5.0 kg is released from point A and slides on the frictionless track shown above. Note that the bead slides, it doesn't roll, because there's no friction at all.
(a) Determine the bead's speed at point B.
(b) Determine the bead's speed at point C.
(c) Determine the net work done on the bead in moving it from A to C.
Electric vehicle supercapacitor. a. A 3000 F capacitor has initial voltage 200 V. If the capacitor is discharged at a constant 60 A, what is the voltage across the capacitor during discharge. b. How long will it take the capacitor to discharge to 5..
If a silicon diffusion is doped with phosphorus (donors) at a concentration of 0.6 x 10^17/cm^3, what is the concentration of holes in this piece of silicon per cm^3 Assume ni = 1.45 x 10^10/cm^3, n = 1000 cm^2/V-s, p = 400 cm^2/V-s
A sinusoidal current is zero at t = - 625 s and increasing at a rate of 8000 A/s. The maximum amplitude of the current is 20 A. a) What is the frequency of i in radians per second
The penalty for main memory access is 100 clock periods for both data and instructions. The probability of an instruction cache miss is 2%. The probability of a data cache read miss is 5%. The data cache has a write-back
A photoresistor is connected series to a battery of 10 V with internal resistance of 5 Ohms. The ohmic resistance of the photoresistor changes by time through the day and expressed as: RLDR=20-(10/t) .
Two watt-meters connected to read the total power drawn by a balanced three-phase load. If the two readings are 1000 W and -1000 W, what is the total power drawn by the load
Explain briefly from what you notice about the digital output values in (a) why a digital output value of an A/D converter is rarely the exact same digital value as the analogue input value.
A permanent-magnet automotive fan motor draws 20 A from a 12-V source when the rotor is locked (i.e., held motionless). Find the armature resistance.
A wooden cylinder 30.0 cm highs gloats vertically in a tube of water (density = 1.00 g/cm cube). The top of the cylinder is 14.1 cm above the surface of the liquid. What is the density of the wood
a)What is the voltage across a 220-ohm resistor if the current through it is 5.6 mA b)What is the current through a 6.8-ohm resistor if the voltage drop across it is 24V c) What is the power delivered by a 6 V battery if the current drain is 750mA
design op amp circuit to produce output vout which is related to inputs v1, v2 and v3 by expression vout= -(3v1+5v2+8v3). assume max permitted resistor value= 200k. use only one op amp
The source has an abc-phase sequence. At the wye-connected load, the phase-a voltage Va'n' has phase angle (theta)a'n' = 60 degrees and the phase impedance is (10 + j15) ohms. Further, the line impedance per phase is (1.1+ j1.5) ohms
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