Convert Definition and 586 Threads

I am planning to plot all the observations made by a satellite in two respective grid boxes. One grid located at the equator and one grid located at the mid latitudes... Each grid box will be a 10° x 10° box. However, due to the shape of the Earth the area of each box will indeed not be the...

Homework Statement I have this set of equation: My''+Cy'+Ky=0 but C=0 M is a matrix consist of {(-m) (0)/( -1/12mb^2) (-1/12mb^3)} and K is a matrix of {(-K1-K2) (-K2b)/ ((K1b-K2b)/(2)) (-K2b^2/2)} and y is a coordinate system which is (x1,θ) Now i have to convert these...

I have a complete brain freeze sorry, and cannot work this out. I have a helium atom of 4.0 amu and there are 6.0 x 10^24 atoms. How do I calculate the total mass in kg please? Thanks

Hello All, I would like to convert a partial diff equation in time domain into frequency domain, however there is a term of the form: Re(∇(E1.E2*) exp(j[ω][/0]t)) where E1 and E2 are the magnitudes of the electric field and [ω][/0] is the angular frequency. Can someone please help me to...

Homework Statement Identify the reagents you would use to perform the following transformation: Toluene -> Benzoic acid Homework Equations N/A The Attempt at a Solution I'm not exactly sure how I solve this type of thing. I was considering reacting this with an ordinary oxidizing agent, but...

Homework Statement We're given pressure (Which is mass/volume) and G constant Looking for minimum r, given pressure, that would produce a certain F value in Newtons... 2. Homework Equations F=ma Blanking here* Honestly everyone this is my first physics intense college course and i have no...

Hi guys, I am currently having a problem in converting, my .f90 and .txt and output files into a single pdf. Dose anyone have any ideas?

Homework Statement The problem is from D'Inverno's book on GR, problem 5.6. We're using the Jacobian/transformation matrix to convert the tangent to a circle centered at the origin of radius A from Cartesian to polar coordinates. I can do the problem and get the book answer, that's okay...

how to convert MNCP F4 tally to neutron flux (n/cm2s). and how to calculate average neutron produced per fission from given nuclear fuel mixture (eg. mixture of 80.8% enriched U-235 and U-238 as fuel material).

Hi I have an engine that has three phase 18 pole stator for DC fired cdi system . I want to install it this engine in another bike frame the issue is that that frame has ac fired cdi wiring system. Where there is a special coil for the Ignition, lightning and charging. Can i covert the...

Homework Statement I'd like to know how to convert Maxwell's Equations from Differencial form to Integral form. Homework Equations Gauss' Law Gauss' Law for Magnetism Faraday's Law The Ampere-Maxwell Law The Attempt at a Solution Convert using properties of vector analysis (as Divergence and...

Given are the following predicate symbols: Member(x) : x is a member of the bicycle club Chairman(x) : x is the chairman of the bicycle club Bicycle(x) : x is a bicycle Brand(x, y) : the brand of x is y Owns(x, y) : x is the owner of y a. Statement: every member of the bicycle club has the same...

I have a PDF file in which different pages are of different size because I made it up from images of different sizes. For printing purpose I want all the pages to be of A5 size, How can I do that ? Sorry if this is silly but I have no experience in working with PDF, this is the first time I...

Part of the question says: An unit cell has a cell edge of 288 pm. I got to the part where volume (288 pm)^3 = (288 x 10^-10 cm)^3 I have no idea how that equals 2.39 x 10^-23 cm^3 Only the Bold part ^

Homework Statement and the solution (just to check my work) Homework Equations None specifically. There seems to be many ways to solve these problems, but the one used in class seemed to be partial fractions and Taylor series. The Attempt at a Solution The first step seems to be expanding...

How to convert volumetric flow rate to mass flow rate?

I need help to convert 2 variables A,B into 1 representative variable C, which is used to filter A,B: Below is an example with C=A+B, which makes Set 2 the highest value: Set 1: A=65, B=75, C=140; Set 2: A=50, B=100, C=150; Set 3: A=54, B=90, C=144; Set 4: A=72, B=72, C=144; Set 5: A=71, B=73...

Okay, so maybe this is the wrong forum. I'm here as a last resort, I've been on 4Chan and ask websites for three hours just looking for ideas, or God willing, some real data. I've been tasked by a friend to convert horse power into duck power. It sounded easy at first but I'm stuck. I've barely...

I am trying to find the most efficient way to convert kinetic energy to heat. The first thing I know is friction, however friction cause wearing for long term use. The second is convert to electric energy(dynamo) and then convert to heat using electric coil, however I think that has low...

Can black holes convert dark matter into matter and vice versa? Presumably, a black hole can gain its mass from eating normal matter, or dark matter, or light. Then, it will eventually evaporate into Hawking radiation. I guess the Hawking radiation should include light as well as both matter...

hello guys, how to convert the water into a fuel

Hi PF! I have a .m4v video file that I want to convert frame-by-frame to .png files. Does anyone recommend software to do this? I'm using a Macintosh. Thanks so much! Josh

It's a well known fact that convergent and/or convergent-divergent nozzles convert internal enthalpy into forward motion i.e. dynamic pressure. But, enthalpy means both internal heat and the pressure-volume. I want to know whether the internal heat of a fluid can also be converted into forward...

For example, say I want to convert 1/7 to its representation as a repeating decimal? Is the fastest way just to do long division, or is there a faster way?

If I have a cluster with a mass measured in M_500c, then how do I go about converting that mass to M_200c given some concentration and an NFW profile?

I have a derivative of a function with respect to ##\log \left(r\right)##: \begin{equation*} \frac{dN\left(r\right)}{d \log\left(r\right)} = \frac{N}{\sqrt{2\pi} \log\left(\sigma\right)} \exp\left\{-\frac{\left[\log \left(r\right) - \log\left(r_M\right)\right]^2}{2...

Hi I was wondering if there is a way to produce energy using the movement of vehicles on the road. I do not know which principles can come into picture, but I believe Electromagnetism/ detection is the way to go? If someone could at least throw me in the right direction of which field to...

Homework Statement I need to find the work done by the force field: $$\vec{F}=(5x-8y\sqrt{x^2+y^2})\vec{i}+(4x+10y\sqrt{x^2+y^2})\vec{j}+z\vec{k}$$ moving a particle from a to b along a path given by: $$\vec{r}=\frac{1}{2}\cos(t)\vec{i}+\frac{1}{2}\sin(t)\vec{j}+4\arctan(t)\vec{k}$$ The Attempt...

How do you convert to "Of Date" or "Apparent" coordinates from "J2000" coordinates? The website: http://ssd.jpl.nasa.gov/horizons.cgi#results there are two options for displaying RA and DEC: Astrometric and Apparent. Astrometric is the J2000 coordinates and Apparent is the "Of Date"...

Homework Statement my spring constant is 85 N/cm and I have to convert to N/m Homework Equations why does stoichiometry not work on this? How would I approach conversions like this? The Attempt at a Solution I tried converting the 85 N/cm to N/m and ended up getting 85*10^2 N/m. This was...

Dear Group, I have a 30_sec_data.txt with weird characters in it and data.txt with nice numeric in it, Any one have any ideal to help me convert data from weird to regular data using Matlab. Thank you, Best regard,

orbital movement occupy more space than spin movement. If an object are running in both orbit and spin, how to stop orbit and transfer orbit energy to spin energy? Of course the total angular momentum conserves. I know new optical technology can convert spin energy into orbital energy, but it...

Hello, How do i convert USD/kg to USD/gallon? pl help Liquid A: Cost=1416 USD/gallon Specific Gravity=1.35 Liquid B: Cost=120 USD/Kg Specific Gravity=1.67 Thank you

If I know the angular size of the object in arcsecs let's say r, how can I convert it into steradians size? is it just that the size in steradians is r2?

Here is the question with two parts The fastest that a human has run is about 12 m/s. a) If a pole vaulter could run this fast and convert all of his or her kinetic energy into gravitational potential energy, how high would he or she go? 7pts b) Using the 1990 pole vault world record of 20...

hi, is there anyway to convert .CNF to .txt file? regards

I have done a search online to understand how to convert ECI to ECEF. I wanted to learn what the conversion is so I could just create a MATLAB script to make it happen. My problem is that most of the information I find assumes you already have some knowledge about ECI and ECEF. If I had more...

Homework Statement Consider the apparatus that Joule used in his experiments on the mechanical equivalent of heat, shown in the figure below. Suppose both blocks have a mass of 0.69 kg and that they fall through a distance of 0.45 m. Homework Equations (a) Find the expected rise in temperature...

Homework Statement Hi i have an assignment that is asking me to convert 3 temperatures in fahrenheit to celcius and vice versa. I am very new to programming only 2 weeks in(and i learn by playing with the program) so I do not know all of the terminology / principles. I am not allowed to use...

I have data which gives me the magnitude density (mag arcsec-2) of M31 as a function of radius. How can I convert this data to the (enclosed) mass at a given radius (for Velocity Curve analysis)?

I want to take a picture of an object. Then import the image into cad. And trace it. The issue I am having is the picture from the camera is a 3D perspective image. So it is impossible for me to trace in CAD. Is there a way to convert an image from perspective to orthogonal? Or create a...

Hi, I have some modelling code that uses data from Hitran 2012 (https://www.cfa.harvard.edu/hitran/Download/HITRAN2012.pdf). I want to use some data from Lifbase but unfortunately the absorption coefficient units do not match. Lifbase units are given in m3 J-1 s-2 whereas Hitran units are...

I know 1BTU = 1055J 1lb = 1/2.2046 kg 1 F = 255.928 K then 1 BTU/lbF should be 1055/(1.2046)*255.928. But I get 9 plugging this in the value is suppose to be 4186 J/kgK. this is the specific heat of water

I am not entirely sure how to convert the conservation of mass and momentum equations into the Lagrangian form using the mass coordinate h. The one dimensional Euler equations given by, \frac{\partial \rho}{\partial t} + u\frac{\partial \rho}{\partial x} + \rho\frac{\partial u}{\partial x} = 0...

...to a percentage? I know that 0.5 = 5/10 = 1/2 = 50%. But I'm not sure why multiplying 0.5 and 1/2 by 100 gives us them as a percentage. Take 1/2. Multiplying it by 100 means multiplying the numerator by 100. So 1/2 becomes 100/2 which gives 50 (50%). I can see that it works. But I don't...

$$-2 \sqrt{3}\cos\left({\theta}\right)+6\sin\left({\theta}\right) $$ Convert to $$A\sin\left({B\left[\theta-C\right]}\right)+D$$ I couldn't find an example how to do this coversion

Homework Statement Homework EquationsThe Attempt at a Solution -In order for me to figure out this problem I had to reverse the equality to isolate the Ө on the left side making the new equation 9cos(3Ө)=r^2. The first thing I’m going to do is change cos(3Ө) in terms of cos and sin. That will...

So, I recently joined a stargazing club, and for our summer activity, we're supposed to use a telescope, a photoresistor, and a multimeter to measure the luminosity of the moon. I know that luminosity can be calculated with the equation, L = σ AT 4, and that brightness can be measured with the...

Hi Is it possible to convert coulomb to joule without knowing volt?

I have researched that isobutanol has a heat of combustion of 35981 kJ/kg; however I need this to be in kJ/mol. From calculations, the molar mass of isobutanol was found to be 74g/mol. How would I go about in converting this? Relevant equations (?) #mols=mass/molarmass But how can I use this?