Other Engineering Answers

How do you determine Vo at a frequency one octave above the critical frequency if R=1 k ohm and C=0.01 micro Farrads in series Vin=10mV

Determine Voutput at a frequency one octave above the critical frequency.

A car of mass 1100 kg drives with a velocity such that it has a kinetic energy of 400 kJ. Find its speed. If the car is raised with a crane, how high should it be lifted in the standard gravitational field to have a potential energy that equals the kinetic energy?

Radius = ( (C * C ) / (8 * M ) + ( M / 2 ) * mean ? / mean ?

Write a 200- to 300-word response to the following question:

What are some techniques for developing effective, interactive, and visual web-based user manuals? What are the benefits and challenges of developing interactive user manuals?

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Why is it important to establish the necessary criteria before writing a user manual? What criteria are frequently missing or vague in user manuals and instruction? Provide examples of missing or vague criteria you have recently seen.

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Thermodynamics project
The design a device that converts heat produced by a candle into the work
of raising a 250g object to a height of 20cm vertically.Students are only allowed to use one or two tea light candles as their heat source. Not allowed to modify the candle in any way other than to reduce the overall weight by removing some wax. not allowed to design other sources of energy, (i.e. kinetic,
potential, electrical or chemical) into their project. This meant no other fuel sources may be
ignited, no springs, catapults, sling shots, fly-wheels, etc. that are pre-loaded and simply need to
be triggered, or other similar shenanigans. The candle could not be used to combust any other
material. The goal for the students was to come up with a design which converted the candle heat
into work.

I have a fluid dynamics question.

If I have a constant stream of water moving 7 ft/s that flows directly into a rectangular 8" x 6" opening (at the collection end) that tapers down over a 15" length to a 8" x 1-1/2" outlet, how much will the speed and pressure increase at the outlet.

Thanks a bunch,

Todd

Q5.Calculate the frequency of a sound wave which has wavelength of 0.7727m and a velocity of 340m/s

Q4.Calculate the wavelength of a 10kHz sound in air at a temperature of 300 .

Q3. Calculate the difference between sound levels measured at 10m and at 63 m from a perfect line source of sound.