Range Definition and 979 Threads

Hello all, This is just a question i have... I need to know the frequency (in order to meter it) from an electromagnetic source, and i know that a neodymium magnet will disrupts it. so, i want to know what range the neodymium will disrupt, in order to know what device will need to meter...

With a 5W FM transmitter and a normal dipole antenna , to what range can I transmit. To be more specific, what will be the radiation pattern like (Can I get signal uniformly as in a circle where the center is antenna). Using which antenna, can I achieve maximum range omnidirectionally...

Can anyone explain to me why (when air resistance is ignored), that 45° angle is the ideal angle for the longest range? Is it because if it is over 45° then gravity will be acting on it longer therefore will be dragged down sooner? Also as "u cos >45" produces a lower exit...

For example: f(x) = 2 - √(x+9), x ≥ -9 I'm asked to find the inverse and the domain of the inverse which is the range of f(x). I've found the inverse but for the domain, I put x ε ℝ however the answer is x≥2 I can see how they got the answer but why is my answer incorrect. This is how I'm...

Homework Statement i meet problem below in control system : G(s)= K(s+4)/s(s+1)(s+2) its a unity feedback system. 1. determine the range of K that keeps the system stable. 2. determine the range of K that makes the system oscillate 3. calculate the frequency of oscillation when the...

Good Day Everybody, Please assist me on these problems 1. I wish to put six plots on the same plot using matlab. The details of each plot are stated below PLOT 1 x axis range 0:1 y axis range 0:1 PLOT 2 x axis range 0:1 y axis range 0:1 PLOT 3 x axis range 0:1 y axis range...

what happens if we input higher frequency signal to oscilloscope than its range. How will It respond. . .for example in oscilloscope range is 12 MHz how will it display a signal having rise time of say some 40 nano seconds ?

Homework Statement You are designing a firing range. The range will be 200 yards in length. You must build a backstop that is of sufficient height to contain the projectiles. There are .22 caliber long rifle ammo and .308 caliber center fire ammo used on the range. A shooter discharges a round...

hi all, Im currently a aerospace engineering and I have some questions that I have been wondered about the range equation. I just studied about the breguet range equation (R=v/sfc L/D ln(wi/wf)). The equation is pretty simple within many assumptions such as constant speed constant L/D...

Homework Statement Consider the left multiplication L_A:R^4->R^3 corresponding the matrix A: 1 2 -1 3 = 2 2 4 -1 6 = 5 0 1 0 2 = 3 What is the rank of L_A and the Range of L_a? Homework Equations The Attempt at a Solution I have two main problems with this question...

I am a physics teacher and am wondering something about the range equation. Wouldn't that equation work for complementary angles each time? The author of our book has us solving for one angle but shouldn't you solve for two?

Hi there, the full question is as follows: Suppose omega_m = 0.2. If we observe cosmic acceleration at z=0, what is the possible range of values of q_0? What is the minimum value of lambda? What is omega_total? so I'm having trouble with the relationship between q_{0}, \Omega_{m,0}, \lambda...

Homework Statement Determine the domain and range of the function y=5−e^(−x/2). I am having some trouble with this. Does any have some tips to get started, or a good link to a instructional video? My textbook does not have this section :( Thanks all! Homework Equations The...

I've been debating various Sci-Fi vs debates for a while now and I've decided to try and figure out how powerful the C-14 Gauss assault rifle from StarCraft needs to be in order to achieve the following feat: A league is 5.556km, so halfway up a 20 league vortex would be 55.56km from the...

Hello, I have some questions and i couldn't solve them can you help me? If y=5cos(x)+3 then what is the heap of ? (a) All real numbers (b) alpha<= y <= alpha (c) -2 <= y <= 10 ( d)-2 <= y <= 8 What is the solution? Thank you.

I am having a difficult time wrapping my mind around the differences between a codomain and a range. Could someone explain the difference between the two and possibly provide an example?

Homework Statement How to solve part (iv) & (v)Homework Equations general form : y = a(x-h)^2 + kThe Attempt at a Solution In part (iv) for finding domain and range I converted g(x) in general form and then compared it with general form.

Homework Statement Let f(x)=x, 0≤x≤p (a.) Compute the half-range sine series (b.) Use the series to show that 1-(1/3)+(1/5)+...=π/4 Homework Equations bn=(2/L)*int(from 0 to L) f(x)*sin(nπx/L) dx The Attempt at a Solution bn=(2/p)*int(from 0 to p) x*sin(nπx/p) dx Using...

So I have derived a formula for the range of projectile in a vacuum fired from an arbitrary height h from above the ground as the following... R=(vcosθ/g)[vsinθ+sqrt((vsinθ)^2+2gh)]Now it seems all well and good, but when I try to play with it by multiplying the RHS by the congugate term over...

Homework Statement Calculate the range if a sniper stands and raises his barrel to an angle of 30 degrees above the horizontal with the end of the barrel 2.0 m above the ground. The muzzle velocity of his rifle is 800m/s. Known variables: U = 800ms^-1 Uv = 400m/s Uh = 692.8m/s a =...

The problem is attached. The problem is "find a basis for the range of the linear transformation T." p(x) are polynomials of at most degree 3. R(T)={p''+p'+p(0) of atmost degree 2} This is pretty much as far as I got. I'm not sure how to do the rest. I'm thinking of picking a...

Homework Statement If the maximum allowable width, w, of the wall is 100 cm, what are the domain and rand of the function? Remember to include units for both the domain and range. Homework Equations w(d)=2d w(d)=100, so 100=2d, there fore d=100/2 The Attempt at a Solution...

I have a question about domain and range.What are the domain and range of cos(e^{-×}) and \frac{\left|2×-1\right|}{sin(\frac{1}{2}\pi×-\pi)} ?? Thanks..

Range and Height Kinematics? What happens to range if the initial height is doubled. Say if something is shot at 2 ft and then its shot at 4 ft high, what happens to range?

What must actually be specified in order for a function to be fully defined / or in what combinations if not all 3 need to be specified? I.e - from knowing the function you can determine the co-domain - e.g - if it is specified that real functions are going in, and for something simple like 2x...

Homework Statement The initial kinetic energy imparted to a 0.0190 kg bullet is 1008 J. (a) Assuming it accelerated down a 1.00 m long rifle barrel, estimate the average power delivered to it during the firing. (b) Neglecting air resistance, find the range of this projectile when it is...

I'm in my third (final ) year in my Bs. in mechanical engineering .( we do a 3 year Bs. and a 2 year Ms. which is the equivalent of the 5 year BE. degree) .Anyways ,I have to present a senior project this year and I want to do something that is related to stuff i care about . My question is...

Hey there everyone, long time lurker but first time poster, with a question. I've been studying for an upcoming exam and I came across this question in my textbook and I'm absolutely stumped. Any advice would be much appreciated. An aircraft has a weight of 90,500 N, an aspect ratio of 5.5, a...

Homework Statement If |z|=1 and |ω-1|=1, where z, ω \in C, then find the range of |2z-1|^{2}+|2ω-1|^{2}. Homework Equations The Attempt at a Solution Since |ω-1|=1 Squaring both sides and simplifying |ω|^{2}=ω+\overline{ω} Also simplifying the expression given in the question...

how to find the range of rational functions like f(x) = \frac{1}{{x}^{2}-4} algebraically , i graphed it and seen that (-1/4,0] can not be in range . generally i am interested in how to find the range of functions and rational functions in particular

Homework Statement We are given two PRFs, say 300 and 400Hz, and asked what the ambiguous range is. Homework Equations The Attempt at a Solution None. The prof hasn't posted any notes, the book says nothing about multiple PRFs, and I can't find anything on the internet. There...

Homework Statement We have an alpha particle moving in the air (p=10^5 Pa). Its range is "d". What would be the range if the pressure was q=10 Pa only. Homework Equations x=d*(p/q) ? The Attempt at a Solution I think the particle is slowed down the more the more is the number of...

Why are we interested in looking at the kernel and range (image) of a linear transformation on a linear algebra course?

Using this series approximation, plot the temperature profiles on the same set of axes for a range of time steps in the dimensionless time interval $t\in [0,4]$ in order to visualize the process. $$ \begin{alignat*}{3} T(x,t) & = & 1.7624\cos(0.86x)e^{-0.86^2t} - 0.1638\cos(3.426x)e^{-3.426^2t}...

Homework Statement A car is parked near a cliff overlooking the ocean on an incline that makes an angle of 14 with the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline and has a velocity 5 m/s...

As I understand it, there are the terms: domain - variables that are input to a function range - the variable that is output to a function This works well in a canonical single equation system like z = f( x , y ), but breaks down in an implicit function or set of equations. I was...

So I want to know if MRI scan can be performed from a distance away. As far as I know MRI consists of a magnetic field to realign the hydrogen atoms in our body. After this the radio frequency pulse is applied and this energy is absorbed by some of the protons. When the radio frequency pulse is...

Homework Statement find the angle of the projection for which the maximum height is equal to half of the range Homework Equations vertical: h =(vsinθ)t-0.5(g)(t^2) horizontal: 2h =(vcosθ)t The Attempt at a Solution i know you set both equations equal to each other (vsinθ)t...

Homework Statement A ballista fires an arrow at an initial velocity of 325 m/s. What is the maximum range it can reach? How high would it get at maximum range? How long would it take? Homework Equations Rmax = (Vo^2)/g The Attempt at a Solution When I used the formula, I got the...

Homework Statement Find Time of Flight/Maximum height & horizontal range given Launch Angle and Initial Velocity. Using Launch angles: 9, 27, 45, 63 & 81. Initial Velocity: 25 m/s Homework Equations The Attempt at a Solution I used sine/cosine to find the Horizontal Range &...

Hello all. I am performing chemistry experiments and recording the times of various observed results. What I am doing currently is performing the test several times in order to determine what result is "normal." My goal is to determine a range as a standard by which all future tests will...

Homework Statement Find the domain and range of the following function without the use of a calculator: f(x) = sec (pi x/4) Homework Equations As far as I know, this problem doesn't specifically require "equations". Therefore I am leaving this section blank. Not because I am a...

Describe the range of p(z) = -2z^3 for z in the quarter disk |z| < 1, 0 <Argz < \frac{\pi}{2}. The answer is the circular sector |w| < -2, -\pi <Argw < \frac{\pi}{2} What's a good way of seeing why this is true?

Hi, I'm trying to write a short code in Mathematica that can generate random real numbers in - say 5 secs, and then plot this against any specified range I want. An additional complexity is that the function I'm generating the random numbers for is embedded in an integral. Here's an example...

If I am given a function: f(z) = w(x,y) = u(x,y) + iv(x,y) How do I find the domain and range of that function? Are there any good lectures online on this? I know I have to use two planes; One for u and v, and one for x and y. Besides that, I am lost.

Hello PF! I've got a strange question for you physics boffins; assuming for a moment that lasers obeyed the inverse square law, what range would a typical 1mW red laser have in the atmosphere?

I am a bit confused about this matter. While I was studying Calculus I saw an excercise like this: The domain of f(x) [0,2] and the range is [0,1], it also shows its graphic, though it is not important it is something like a parabola, its maximum point is (1,1) and its intersection points are...

Homework Statement Find the range of the following function. f(x)=abs(x)+x^3 Homework Equations The Attempt at a Solution f(x)=abs(x)+x^3 y=abs(x)+x^3 x=abs(y)+y^3How do I go about completing this algebraically? In fact how to I approach inverting an problem involving absolute values?

Would a bullet have longer trajectory,because the air helps it ''glide''?Does this mean that if you fire the same gun and bullet in vacuum and in the air the one fired in the vacuum will fall to the ground a lot more quickly?

For a chemical reaction we have, ΔH=-114.1kJ and ΔS=-146.4J/K ---> ΔS=-146.4·10^{-3}kJ/K. Question: Determine the temperature range at which the reaction is spontaneous. A reaction is spontaneous when ΔG is negative in the equation ΔG=ΔH-TΔS, so I do: ΔG=ΔH-TΔS 0>ΔH-TΔS -ΔH>-TΔS...