Peak Definition and 233 Threads

Homework Statement A 5 Micro-F Capacitor, a 65mH Inductor, and a 10 Ohm resistor are connected in series Find the resonant frequency of this circuit. Determine the peak current at resonance, if the peak voltage is 100V Homework Equations Fr = (1/2Pi) Square Root(1/LC) I don't know...

Homework Statement An LC circuit starts at t=0 with its 2000 microF capacitor at its peak voltage of 14V. At t=35 ms the voltage has dropped to 8.5 V. a) What will be the peak current? b) At what time will the peak current occur? c) What must be the value of the inductor in the circuit?The...

Hey guys. The question I have to answer is What is the color of the peak frequency of solar radiation? Now is there a certain way to figure this out or...very hard to find on the internet... best zach

hi, I am 21 years old 180cm tall and 73kg, I'm an ex smoker. I'm in the process of an army application but need to improve my peak flow. will increasing my vo2 max help and are there any other ways to increase peak flow.

For the circuit shown a. What is the resonance frequency? b. At resonance, what is the peak current through the circuit? http://img218.imageshack.us/img218/2971/p56dr3.png I solved for resonance frequency knowing that when Xc=XL you get a resonance frequency. my set up was 2pifL=1/(2pifC)...

[SOLVED] Determining Peak Current Homework Statement A light bulb uses 75 watts of power when a lamp is plugged into a wall socket (RMS voltage = 110 volts alternating at a frequency of 60 hertz) Determine the electrical resistance of the light bulb filament. Determine the peak current...

:-p http://www.cbc.ca/consumer/story/2007/09/26/helium-shortage.html

hello i want to find the peak point of a quadratic bezier curve. one approach is finding all distance between "start point","any point on curve","end point" and then choosing then maximum distance between them. but this approach get much time when implementing on computer is there any...

About 200 days ago i made a thread on this forum about peak oil the thread was called hubbert peak. in that post i asked if you realized that peak oil was coming and got by and large a negative response. things like "no peak oil is myth" and "we will find other energy sources" i...

Homework Statement I am assigning m/z peaks on a mass spectrum, and there are 3 peaks not on the chart given by the instructor, and I was wondering if anyone can help me determined their identities. The peaks I am unsure of are found at 95 m/z, 109 m/z, and 123 m/z; I already figured out the...

Homework Statement A circuit contains only 0.197 H inductor. An AC voltage of peak value 166 V and frequency 60.5 Hz is applied to the circuit. When the voltage is 166 V, what is AC current? Answer in units of A. Homework Equations The Attempt at a Solution we know that...

An integral \int\limits_{-\infty}^{\infty} \sqrt{1+x^2} e^{-Ax^2+Bx} dx is the problem. Anyone knowing the solution?

In 1956, Hubbert proposed that fossil fuel production in a given region over time would follow a bell-shaped curve without giving a precise formula; he later used the Hubbert curve, the derivative of the logistic curve, for estimating future production. Hubbert assumed that after fossil fuel...

Homework Statement A 400 loop circular armature coil with a diameter of 5cm rotates at 60rev/s in a uniform magnetic field of strength 1T. a) What is the peak voltage output of the generator? b) What is the RMS voltage output of the generator? The Attempt at a Solution a) My answer...

hi i was wondering if anyone could tell me of any good dc peak detection circuits. the voltages i am measuring are varying by one hundredth of a volt. i have been using the peak detector on the wqikipedia website but the circuit doesn't seem to store the peak voltage as the reading on the dmm...

What is the peak frequency of the Cosmic Microwave Background? Using Wien's Displacement (#1) and then converting the wavelength of frequency (#2), I get 282 GHz. #1. 0.0028977685 / 2.728 = 0.00106223185483871 Meters (1 millimeter) #2. 299792458 / 0.00106223185483871 =...

If a fireworks rocket has an initial upward speed of 58 m/s when launched, for how long will it coast before reaching its peak? So could I use the equation t=v0z/g? When I use this I get the peak to be 5.9s. Is v0z = 58 m/s or would that be 0? Am I approaching this correctly?

Probably they do. However, I've heard there is a difference between guys and girls in that respect.

What are the prerequisites for great new scientific ideas? Intelligence and creativity? Assuming these two variables-feel free to add more if you wish-does the mind ever peak at a certain age in either of these two areas, be it physically or simply subjectively? It seems the true geniuses do...

In the last couple of days I have been searching for information concerning the Hubbert Peak Theory. Most of the information about peak oil seems to be alarmist and/or conspitacy theorist make-preparations-now-or-you're-gonna-die stuff. I have read that most oil companies and the US...

http://www.physorg.com/news8441.html" Sorry folks, but if his right, it means it’s all down hill from here.

Hi, My Question: If the peak value of the magnetic field of an EM wave is 2 x 10^-7 T. Calculate the peak value of the E-field. Work: C=E/B so, 3*10^8 m/s=(E)/(2*10^-7 T) (3*10^8 m/s)(2*10^-7 T)=E E= 60 N/C Is this right ? Thank You

I took a Fathers day hike, thought I'd share the view. Marys Peak is about 20mi west of my home, I haven't been up there in many years, thought it was time for a revisit. these are just some shots along the way. First the requisite waterfalls...

A one bar electric fire has a power rating of 1000W (1kW). If the RMS voltage of the mains is 240V, find the RMS value of the current flowing in the fire and the peak values of current and voltage? Can some one please help me??..Its a past exam question and i don't even know how to start...

The coil of a generator has a radius of 0.14 m. When this coil is unwound, the wire from which it is made has a length of 5.7 m. The magnetic field of the generator is 0.20 T, and the coil rotates at an angular speed of 25 rad/s. What is the peak emf of this generator? Please help me get...

I am always confused with rms value and peak value, so here is the problem: What will be the peak value of the current of a well-insulated 0.03\mu F capacitor connected to a 2.0-kV(rms) 720-Hz line? So first I find the reactance of the capacitor, which is: X_c=\frac{1}{2\pi fC} 7.4k...

There is a projectile that explodes into equal mass fragments at its highest point. One falls vertically with initial speed. I need to find where the other will strike the ground and the energy released during the explosion. I am given the mass(19.6kg), angle (56 degress), initial...

I am really curious as to what the minds on this forum think about Peak Oil. Set to hit around 2010, Peak Oil seems to get an insanely small amount of attention, especially considering that the 1970's oil crash was due to just a 5% decrease in oil production. After Peak Oil, it is...

I have in other threads assumed that the pessimists are correct and that peak oil is happening this decade. Do anyone have more information if this is correct? Can alternatives like tar sands, oil shale or abiogenic oil be dismissed? The peak-oil-this-decade theory is advocated here...

How far from the peak wave do objects emit electromagnetic radiation? Humans emit infrared radiation, but I read that we also emit some microwave also.

how many peak sensitivity of the human eye?

Today is Saturday and it is an unwritten law that on Saturdays one is permitted to post sonnets. Here are the last 6 lines of one by Keats: ... Then felt I like some watcher of the skies When a new planet swims into his ken; Or like stout Cortez when with eagle eyes He stared at the...

I took some measurements for a Physics lab and don't recall whether the Voltmeter I used reports the peak voltage or rms voltage. I need rms voltage to calculate the rms current. Can anyone tell me what the norm is for voltmeters: peak or rms? To divide by the [squ]2 or not to divide by the...