What is Brownian motion, and relate how the kinetic theory applies to it. Give two real-life examples where the kinetic theory is used to our advantage or when it might be a disadvantage.

Using powder X-ray diffraction to analyse a metal compound, a simple pattern of peaks resulted, where the largest peak existed at an angle of 2θ= 19.8°. However, when a similar sample was analysed that contained a metallic impurity, this 2θ value became 22.4°. What does this suggest is happening to the crystal lattice and why?

You place a crate of mass 31.6 kg on a frictionless 3.00-meter-long incline. You release the crate from rest, and it begins to slide down, eventually reaching the bottom 1.34 s after you released it. What is the angle of the incline?

A) 24.9 degrees

B) 19.9 degrees

c) 29.9 degrees

D) 44.9 degrees

Suppose you are using a multimeter (one designed to measure a range of voltages, currents, and resistances) to measure current in a circuit and you inadvertently leave it in a voltmeter mode. What effect will the meter have on the circuit? What would happen if you were measuring voltage but accidentally put the meter in the ammeter mode?

Question 6 – Audit opinions For each of the following four independent scenarios, indicate: • the type of audit opinion you would express in your audit report; • the reason(s) supporting your choice of opinion; and • which ASA (number is sufficient) most influences your choice. (a) Slocum Limited has changed its method of valuing closing inventory for the current financial reporting period from first-in-first out to weighted average. Inventory is a material proportion of Total Assets for Slocum Limited and the effect of the change has been a material increase in the year-end value of inventory. Those charged with governance have signed-off the change and disclosed the reason as a truer reflection of net income (profit) by better matching revenue and costs. As an auditor you have had extended discussions on the issue with the audit committee and are satisfied with the disclosures. Type of opinion: Reason(s): Supporting ASA number: (b) Joshua Pty. Ltd. is a long-time large proprietary company client of your practice, operating a charter fleet of houseboats. For the current financial reporting period, a new financial director has convinced the Board, to change the method of determining the useful lives of the company’s fleet of houseboats – the most material asset on their balance sheet. The effect has been a material reduction of the depreciation expense and consequent impact on the net income (profit) for the period. In your professional opinion the change is not justified, however, you have been unable to convince Those Charged with Governance. The change has been adequately disclosed in accordance with AASB 108. Type of opinion: Reason(s): Supporting ASA number: (c) Helping Hand is a not-for-profit providing support for the disadvantaged in your local region. As part of your professional firm’s corporate social responsibility obligations, they provide pro-bono audit services to Helping Hand. Your audit documentation shows sufficient and appropriate audit evidence has been obtained for material financial statement items with the exception of a portion of the revenue account. Approximately 40% of Helping Hand’s revenue is raised by soliciting door-to-door cash contributions by volunteers, several times during the year. Your evidence supports the effective operation of internal controls over cash once it is received at headquarters. Type of opinion: Reason(s): Supporting ASA number: (d) Pillager Limited is a retail audit client. A global pandemic has seen a dramatic decline in their trading activity for the current financial reporting period. They have been fortunate to be able to mitigate the impact to some extent by adopting some trading activity to their currently developing online platform and taking advantage of government support programs. The resulting cash flow difficulties have required successful renegotiation of an already fully drawn borrowing facility with their bank. Those charged with governance are adamant company remains viable and have also drawn up contingency plans for capital expenditure cutbacks, additional off-balance sheet finance options & further options for re-scheduling current borrowing obligations. All these details have been disclosed in a going concern note included with Significant Accounting Policies in their annual financial report. Your review of this key audit matter led you to conclude the going concern assumptions of management are sound. Type of opinion: Reason(s): Supporting ASA number:

1. Define magnetic north, geographic north, magnetic declination and magnetic inclina- tion.
2. What features of a solenoid change the magnetic field strength? What is the equation for the magnetic field of a solenoid?

Interpreted and discuss the difference between the working principle of supercapacitor and lithium-ion battery.

Considering that galactic evolution requires thinking about time periods far beyond human experience, if our species survives several billion years, where might we expect our own evolution to take us?

what is the principle axis of a system of particles? how can it be calculated?

• Please find an Oversized volumes of objects that are too big for the vertical scale differences they represent graph

Why does Flame expansion occur for premixed combustion ? Use Science direct to write about this matter. 150-250 words please

A 5.00 g sample of aluminum (specific heat capacity = 0.89 J °C-1 g-1) and a
10.00 g sample of iron (specific heat capacity = 0.45 J °C-1 g-1) are heated to
100.0 °C. The mixture of hot iron and aluminum is then dropped into 91.9 g of
water at 23.7 °C.
i) State the conditions for phase equilibrium of this system.

NOTE: For an isolated system, the equilibrium state corresponds to the state with maximum entropy.

Briefly describe an example of a possible scientific experiment, and identify both the independent and the dependent variable. please don't hand write the answer.

1. Discuss propulsion subsystem of a typical satellite station?                                        
2. A satellite uplink link has a RSL(receive signal level) of -100.57 dBW. The receiver has a 15 MHz bandwidth, and its noise figure is 6 dB. If the downlink also offers 30dB CNR. What is the total CNR of this single hop wireless link?                                                              
3. A VSAT antenna must have a gain of 40 dB at a frequency of 11.5 GHz. Assume the 3dB beam-widths Ө₁ = Ө₂ and use the approximate expression for the gain to calculate:
4. 1. The antenna diameter.                                                                                              
   2. The antenna beam width; and                                                                                  

• What is the importance of knowing the steps involved in creating an image? Why can’t the technologist just place the patient under the collimator light and press the exposure button?
• How many different types of X-ray machines will you be working with as a student technologist or as a technologist? What should you expect to be similar, and what may be different?