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Double slit interference "missing" maximum problem Homework Statement In the double slit interference experiment, d is the distance between the center of the slits and w is the width of each slit. For incident plane waves, an interference maximum is "missing" when what relationship between d...

Homework Statement The maximum displacement at the tip of the tine of a tuning fork oscillating at 440 Hz is 0.1 mm. What is the maximum acceleration in g’s? Homework Equations (1 g = 9.8m/sec2) The Attempt at a Solution

Homework Statement Two small identical discs, each of mass ##m##, lie on a smooth horizontal plane. The discs are interconnected by a light non-deformed spring of length ##l_0## and stiffness ##k##. At a certain moment one of the discs is set in motion in a horizontal direction perpendicular...

Hey guys. I have an unusual question. Lets say the universe is 100,000,000,000 Light years across. (100 billion I think) Lets say there are only 2 bodies that have mass in said universe. One body is at one end of this universe and the other body is at the opposite end. Do these 2...

Homework Statement A locked door handle is composed of a solid circular shaft AB with a diameter of b = 108mm and a flat plate BC with a force P = 69N applied at point C as shown. Let c = 532mm , d = 126mm , and e = 153mm . Homework Equations \taumax = \frac{Tc}{J} T = internal torque...

Homework Statement There is a fire in a building, so the fireman connects a hose to a hydrant that pumps 2 litres of water per second. The exit of the hose has and area of 15cm^2. Which is the maximum floor of the building that the water can reach considering that it exits the hose at an...

Homework Statement a) For the circuit shown, determine the impedance ZL that results in maximum average power transfer to the ZL b) What is the maximum average power transferred to the load impedance?Homework EquationsThevenin, Norton procedures, voltage division, current division, etc etcMax...

I need to find the maximum ##\theta## value with given constant "a" of this function. f(\theta)=\frac{\cos(a\cos\theta)-\cos a}{\sin\theta} So I take the derivative of the function: \frac{d f(\theta)}{d\theta}=\frac d {d\theta}\left(\frac{\cos(a\cos\theta)}{\sin\theta}\right)-\frac d...

Homework Statement \dfrac{tan\left( \theta + 2\pi /3 \right) - tan\left( \theta + \pi /6 \right) + cos\left( \theta + \pi /6 \right)}{\sqrt{3}} \\ \theta \in \left( -5 \pi /12, - \pi /3 \right) The Attempt at a Solution At maximum, f'(x)=0 sin(θ+∏/6)=0 But there is no theta in...

In SHM , we can only have negative acceleration, and maximum accelration is zero. Is that correct? What is the maximum acceleration here? http://answers.yahoo.com/question/index?qid=20110207103646AAij3SF Thank you.

θHomework Statement The attached diagram depicts a sphere with several variables: the height of the cylinder, the radius of the cylinder and an angle. All that has been given to me is the hypotenuse of a triangle used. Homework Equations To my knowledge I was told to use 2sinθcosθ=sin2θ...

A system is constructed as illustrated. Each resistor is rated at 0.50 watts. What is the maximum Voltage that can pass through the circuit without burning out a resistor. http://i.imgur.com/uowKVxU.jpg I'm assuming you'd have to narrow it down to which resistor would burn out first, however...

Homework Statement An object of mass 50kg rests on a rough plane incline at an angle alpha to the horizontal. It is supported in this position by a light string parallel to the plane. The string has a breaking strain of 200N and the coefficient of friction between the object and the plane is...

Hi Please can someone help me calculate the minimal thickness and width that will resist bending in each of the aluminium beams that are fixed on one end and support a 0.0013734 Newton load on the other. The axis passes through the center of the octagonal shape and goes into the page...

Homework Statement Drawing of the Problem An electron rests on plate A and is accelerated by a 400V Plate (B). From there, Calculate the Maximum Voltage a 3cm plate (C) can be charged before the electron makes contact with the plate. Directly opposite Plate (C), is a +100V Charged Plate...

Homework Statement A turntable is rotating at a constant angular velocity of ω = 4.0 rad/s in the direction of a clockwise fashion. There is a ten-cent coin on the turntable, at a distance of 5 cm from the axis of rotation. Consider the time interval during which the turntable is...

Homework Statement http://i.imgur.com/haX3OW8.png Homework Equations The Attempt at a Solution I guess a) is 1/3 (probably wrong, because I assumed all the field lines that end at -q originates at +3q which is not necessarily true) but I can't figure out b)

Title: The title should actually read Finding the acceleration of a piston with respect to a cranks angle Homework Statement I have found a formula for calculating the acceleration of a piston, with respect to a cranks angle, however I've also found a couple of online calculators that give...

Hello I am currently working on a program that will take the values from a .csv file containing multiple data and analyzing them. The file can be found here: https://docs.google.com/file/d/0BzuDEPd26OcheVhiWlZ3STlZU0k/edit?usp=sharing The data in question starts in row 11 and is in the first 4...

Homework Statement Homework Equations The Attempt at a Solution I am not sure which equations to start with here. Let ##\mu## be the coefficient of friction. The maximum velocity is attained when it is just about to slip i.e \frac{mv_{max}^2}{R}=\mu mg where m is the mass...

Homework Statement In the badly loaded front-wheel-drive minibus shown in Figure Q26 the centre of gravity has been moved away from the driving wheels, determine the max acceleration possible in m/s2 if l=3.0 m, h=1 m, and the static co efficient of friction μs = 0.3. (Image is attached below)...

I have a successive approximation ADC converter (left) and is connected to a DAC converter. The Vref of the ADC is 10V and the Vref of the DAC is brought fom an internal leg of the SAR. This internal leg is the output of the SAR's internal DAC. The question is: what can be the maximum...

Magnetism of a bar magnet -- maximum rate of change? If a bar magnet is placed along the x-axis with (0,0) at its center, along which axis does the magnetic field fall off faster and why?

Homework Statement The uniform quarter-circular sector is released from rest with one edge vertical as shown. Determine its subsequent maximum angular velocity. The distance b is 560 mm. Homework Equations The Attempt at a Solution I know that I need to use: T1 + V1 + U'1-2...

Homework Statement A 275 KG steel mass is held by a long cable to the ceiling. Daniel hits the steel mass horizontally and gives it a horizontal speed of 1.75 m/s. Assuming there is no friction, determine the maximum height gain, in centimetres, of the steel mass after the collision...

So I've got a question that I can't seem to figure out. If the accretion efficiency of a black hole is L=εM(dot)c2 with ε=0.1 I have to set this to the Eddington luminosity which is Ledd = 4πcGMmp/σT to find the maximum rate at which a black hole can accrete by. I found that κ=mp/σT so I...

I've got a question that asks what the maximum scattering angle in \nu_\mu e \rightarrow \nu_\mu e is. The electron is stationary in the lab frame and after the collision has E >> m_e. The answer given is \sqrt{\frac{2 m_e}{E_e}}, independent of the neutrino's energy. How can I get...

Someone please help me with this question. I can't do and I have a calculus exam in the morning.

Homework Statement 2. A block of mass 35 kg is on a flat floor with a static friction coefficient of 0.36 and a kinetic friction coefficient of 0.29. A person attempts to slide the box from rest in a forward direction. Find the maximum frictional force experienced and the acceleration of...

Find the maximum of the expression $$x^4y+x^3y+x^2y+xy+xy^2+xy^3+xy^4$$ if $$x,\;y$$ are real numbers with $$x+y=2$$.

how do you prove that the maximum no. of electrons in the nth shell of an atom is twice of n squared (2n^2)

Homework Statement For the attached emitter follower circuit, calculate the maximum ac power (Sinusoidal signal) delivered to an attached load. I have already calculated Rout of the circuit as 19.2Ω, and the voltage at the emitter at operating point (no input signal) as 10.7V (I know...

Hi Folks I need a bit of help, My weakness is kirchhoffs law and algebra, I know but I still give it a try. For this task I am required to calculate the value of the load (RL) using kirchhoffs and then I have to find the maximum power transfer for the circuit. I have attempted to calculate the...

Homework Statement A V_s=5V source, with Thevenin resistance R_s=1kΩ, drives a certain number h(fanout) gates, each of which is modeled as a C_g=100fF load. The gates are driven simultaneously (i.e., in parallel). You are given: V_OL= 1V, V_OH = 4V. Ignore the wire resistance. What is the...

Just finished an exam. One problem is bothering me and I want to be certain if it's right. Homework Statement What is the maximum velocity of an object dropped from a 20 m cliff? Assume no air friction and gravity is 10 m/s/s. Homework Equations None given, but I assume v=gt is...

Hey In many places on the Internet you can read how the Nyquist frequency must be at least as high as the signals bandwidth in order to properly reconstruct the signal. Isn't this a big misnomer, since it is not the bandwidth, but the highest frequency of the signal that determines the...

Homework Statement A crate of eggs is located on the back of a truck. The truck rounds a circular bend in the road with radius of 35 meters. If the coefficient of static friction between the crate and the truck is 0.6, what is the maximum speed the truck can go without the crate...

Homework Statement A locomotive (6.4 × 10^5 kg) is used to pull two railway cars (Figure 11). Railway car 1 (5.0 × 10^5 kg) is attached to railway car 2 (3.6 × 10^ kg) by a locking mechanism. A railway engineer tests the mechanism and estimates that it can only withstand 2.0 × 10^5 N of...

1. A block of mass 0.247 kg is placed on top of a light, vertical spring of force constant 5 050 N/m and pushed downward so that the spring is compressed by 0.109 m. After the block is released from rest, it travels upward and then leaves the spring. To what maximum height above the point of...

Homework Statement Two vertical forces are applied to a beam of the cross section shown. Determine the maximum tensile and compressive stresses in portion BC of the beam I have attached an image of the question Homework Equations σ = P/A +/- My/Ix Ix = Ix + Ad2 ---> parallel axis theorem...

Homework Statement Hi all, For my CW I have a question on a simple beam, ABCD and its cross-section. Please see attachment for figures The material of the beam is steel, where modulus of elasticity, E = 210 GN/m^2 I have been asked to calculate the principle stresses and the maximum shear...

Hi! What is the limit to how much you can electrically charge two plates? I want to create the maximum possible force between the two plates per kilogram of plate. Say that the plates are separated by a good vacuum, because that is the best insulator, right? The plates are also surrounded...

Homework Statement Atomic sodium is studied by photoelectron spectroscopy. What is the maximum wavelength of the incident radiation that will ionize the most weakly held electrons in sodium and scatter them so that their de Broglie wavelength measures 3.091e-10 m? Homework Equations...

If we are given a metallic conductor in a given Temperature(Room temperature here), Area of cross section A, is there an upper limit to the strength of the current through such a conductor due to the upper limit for drift velocity(v)?? I=nAve e=electron charge n=electron density

Homework Statement In special conditions, it is possible to measure the energy of a gamma ray photon to 1 part in 10^15. For a photon energy of 50 keV, estimate the maximum lifetime that could be determined be a direct measurement of the spread of photon energy. Homework Equations...

Why do gradient show rate of maximum increase not decrease always?

Homework Statement Calculate the Maximum Bending Moment of the bridge section using the values given. Ra = 61837.91667 N Rb = 78304.5833 N (please refer to attached diagram) Homework Equations shear force is = 0 when x = 13.755998 m (I worked this distance and the shear force equation out...

I have taken a time dependent fluorescence series of spectra for an ethylene glycol solution using a 532nm laser as the excitation source. I have attached the spectra to this post. Nothing looks unusual-there is a sharp notch near the 532nm line--this is due to a filter I have used to protect...

a) what is the maximum weight they can move at constant speed? I used 0.42xmg = 6000 x 360 mg = 5142857 N b)what is the maximum speed with which they can move this weight? im thinking power = F / v is used but I keep getting a large number also I've converted hp to watts.

Consider a bungee jumper of mass 65 kg with a 9.00-m cord tied to his ankles. When stretched, this cord may be treated as a spring, of spring constant 150 N/m. Note that the jump-off point is at x=9.00 m, and the origin for the x-coordinate is at the point where the rubber cord becomes taut...