Recent content by wizzkids

This is a good question. The answer is, "It depends". I think you need to separate the data into two categories. You only need the values for volume and moles to calculate the K for the reaction. They each have 3 sig. figs so you are justified to use three significant figures for K. Now...

Where does it say that the loop is moving? The loop isn't moving. You need to practice reading exam questions carefully and answering exactly the question you are given, not the question that you have memorised.

You could investigate the film "Lawrence of Arabia" directed by David Lean. You could investigate the works of Leni Riefenstahl.

Yes, almost certainly if your degree is from a respected Australian University you won't have a problem. Accreditation is all about the planning and execution by the University. It's not you that needs to be accredited. It's the faculty, their curriculum, their assessment practices and their...

Geez, this is a wacko question. Where did you get it? One way to solve the problem is to treat it as a lumped system. Determine the total moving mass of the system, determine the net force on the system, and from that work out the acceleration of the whole system. Then knowing the acceleration...

Accreditation matters if you are looking to have your qualifications recognised by a Professional Engineering Institution (such as IE Aust or the American Nuclear Society) and it might have an effect if you apply for a post-grad placement overseas. As far as entering the workforce goes, it would...

Module 1 is "Properties of Matter" and it includes flame tests of different ionic solutions of metals, and spectral evidence supporting the Bohr model of the atom. I suppose you could ask a student to recount a first-hand investigation of flame test for potassium ions and copper ions. Recall the...

I think you could say, "Planck showed that there was a decreasing intensity of radiation for frequency f > kT/h because radiant energy was quantized according to E = hf and if E >>kT then it could not be emitted."

Good questions - this shows you are really engaging. (i) Something I didn't mention before it is extremely unlikely that all the oscillators will have exactly the average energy kT. Entropy will make sure that this doesn't happen. There is a spread of energies or a distribution function for...

Firstly, let's clear up your description of the "classical" intensity distribution function. The "classical" intensity distribution function was derived by Lord Rayleigh and Sir James Jeans around 1905 - 1910. This function plots the intensity (watts per square metre per steradian) versus...

Reynolds 853 is a low-carbon steel alloy containing manganese, chromium, molybdenum, copper and silicon. 853 tubes are manufactured in very thin wall thicknesses, like 0.5 mm to 0.4 mm. They are weldable by conventional tungsten-inert-gas (TIG) welding and gas-metal-arc-welding (GMAW). Tubes are...

Have you thought about Mining Engineering? There are plenty of jobs and they pay way above market rates for good people.

dy/dx (x) is proportional to the magnitude of instantaneous vertical component of velocity of the projectile. It will have a magnitude of zero at the point of inflection when the projectile achieves it's maximum altitude.

LASER stands for Light Amplification by Stimulated Emission of Radiation. LASER devices are monochromatic by nature because the light amplification effect only occurs at one particular photon energy and one particular photon wavelength. The photons that are emitted are coherent and monochromatic.

I think you are right. However, this is a weird question. To construct an electrochemical cell you would normally construct it from two half-cells. Each half-cell would contain a metal electrode in equilibrium with a solution of its own ions. The two half-cells would be connected by a...