Review Test Submission_ Home work 3 – PHYS1112_

4. Compute the linear attenuation coefficient of iron oxide (Fe304) at 1 MeV. Use the figures provided and the following information; µc = (Opp x Z?), PPi = g/mole, AFe NeocZ, µpe = Nope (Ope X 2"), Mрp — Nopр 11.3 g/cm³, pre304 = 5.8 g/cm³, Zp = 82, ZFe = 26, Zo = 8, Ap6 = 207.19 = 55.85 g/mole, Ao = 16 g/mole. (Note: µFe304 = µFe+ µ0).

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a.Calculate the specific absorptivity if the absorbance, A is 0.209, the path length of solution, b, is a 1.00 cm and the concentration, c is 10ug/mL?What will be the absorbance if the path length of the original solution increased to 5.00cm? b.A solution thickness 2.00cm transmits 40% incident light.Calculate the concentration of the solution, given that a = 6000dm mol-lem-1,

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The specific reaction rate constant k is a strong function of temperature according to the following equation: 1 In the equation above, the reaction rate constant k is expressed in R is the universal gas constant 8.314- What is the unit of A? O mol m OK Om O J O mol K J mol 01 S Pa.m ³ m k=Axexp- Pa.m³ constant (1.314 P-²). mol. K E RT and T is the absolute temperature in K. The equation is dimensionally homogenous.

WP ← → C Help Centre myMapúa: Welcome Microsoft Office Ho... QuestoIT 2J UT JU View Policies education.wiley.com/was/ui/v2/assessment-player/index.html?launchid=544b29a3-e451-4a76-95da-d923ade34b8b#/question/22 Courses Microsoft Teams - L...Mail-ALLYSON VIV... ParentPortal | Mapu.... Number i O b Success Confirmation of Questio x + Save for Later 34°C Mostly sunny - = Units Current Attempt in Progress Two spherical objects are separated by a distance of 2.47 × 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a result, each object experiences an electrostatic force that has a magnitude of 8.49 x 10-21 N. How many electrons did it take to produce the charge on one of the objects? Q Search MathWorks - Make.... ps Turning Point - Parti.... a 14 Explore GitHub T * ENG US 0 X ■ ⠀ 33 Attempts: 0 of 3 used Submit Answer 2:34 pm 18/03/2023

Pd Pd 1. Let's consider a toy model of nuclear fission. Suppose an nucleus of Uranium-235 (92 protons, molar weight of 235 g/mole) "splits" into two "daughter" nuclei of Palladium (46 protons each) – this is not how it really happens, but it's a very simple model that actually gives fairly accurate results. The radius of the original U-235 nucleus is about 7.4 x 10-15 m. (a) If the Pd nuclei each have half the volume of the U nucleus, which is reasonable, and they are "touching" right after the split, how far apart are their centers? (b) Using conservation of energy, what will be the sum of the kinetic energies of the Pd nuclei when they are far apart from each other? (c) That's energy of one atom undergoing fission, so what, then, is the energy released by the fission of 1 kg of U-235? Express this in Joules and also in kilotons of TNT, where 1 kt = 4.2x1012 J. (The Hiroshima bomb yielded about 15 kt) (d) How many kwh (kilowatt-hours) of energy is this, (1 kwh = 3.6x10° J), and (if…

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Stan Moneymaker needs 15 gallons of gasoline to top off his automobile’s gas tank. If he drives an extra eight miles (round trip) to a gas station on the outskirts of town, Stan can save $0.10 per gallon on the price of gasoline. Suppose gasoline costs $3.90 per gallon and Stan’s car gets 25 mpg for intown driving. Should Stan make the trip to get less expensive gasoline? Each mile that Stan drives creates one pound of carbon dioxide. Each pound of CO2 has a cost impact of $0.02 on the environment. What other factors (cost and otherwise) should Stan consider in his decision-making?

A yeast culture weighing 2 grams is removed from a refrigerator unit and is expected to grow at the rate of W' (t) = 0.2e0.4t grams per hour at a higher controlled temperature. How much will the weight of the culture increase during the first 7 hours of growth? How much will the weight of the culture increase from the end of the 7th hour to the end of the 14th hour of growth? grams. The weight increase during the first 7 hours is approximately (Type an integer or decimal rounded to three decimal places as needed.) The weight increase from the 7th to the 14th hour is approximately grams. (Type an integer or decimal rounded to three decimal places as needed.) CH

A commercial screen cloth of market grade is used to separate different fractions of 300 m3/hr of crystals obtained from crystallization via nucleation process in a cylindrical vessel of 3 m height and 9.25 m OD of thickness 3.6 cm. The properties of the slurry are: MT = 220 g/L; ρ = 1.26 g/mL; φ = kv = 0.97 Mesh Sizes  wt % -7 mesh +9 mesh  1.68 -9 mesh +12 mesh  2.31 -12 mesh +14 mesh  2.12 -14 mesh +18 mesh  13.90 -18 mesh +24 mesh  32.89 -24 mesh +40 mesh  45.78 -40 mesh   Find:a. Kinetic equationb. Dominant particlec. What is the cumulative weight fraction at 700 microns?

6. a. Prove that every polynomial of degree k, p(n) = aknk + ak−1nk−1 + ... + a0with ak > 0, belongs to (nk).b. Prove that exponential functions an have different orders of growth fordifferent values of base a > 0.

Una barra esta empotrada en su extremo A, tiene una fuerza de 15 kN en el punto B y otra fuerza de 91 kN en el punto C. Determine la elongación o contracción en la barra AC, en mm, positivo para elongación y negativo para contracción. A = 0.0035 m² E = 200 GPa C A -5 m- 2 m B

3. It has been suggested that the surface melting of ices plays a role in enabling speed skaters to achieve peak performance. Carry out the following calculation to test this hypothesis. At 1 atm pressure, ice melts at 273.15 K, AH fusion=6010 J mol-¹, the density of ice is 920 kg m-³, and the density of water is 997 kg m-³. A. What pressure is required to lower the melting point by 4 °C? B. Assume that the width of the skate in contact with the ice has been reduced by sharpening to 19x10-³ cm, and the length of the contact area is 18 cm. If a skater of mass 78 kg is balanced on one skate, what pressure is exerted at the interface of the skate and the ice? C. What is the melting point of ice under this pressure? D. If the temperature of the ice is -4°C, do you expect melting of the ice at the ice-skate interface occur?

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The escape velocity of any object from Earth is 11.2 km/s. (a) Express this speed in m/s and km/h. Speed, m/s: 11200 Speed, km/h: 40320 (b) At what temperature would oxygen molecules (molecular mass is equal to 32 g/mol) have an average velocity, v, 'ms' equal to Earth's escape velocity 11.2 km/s? Temperature: 1,89 ×108 K No, that's only partially correct

Determine the reactions at pin A and roller B.Assume M0 = 500 lb(ft) and L = 10ft.FBD drawn with straight edge required.

Physics Comet C/1995 O1 (Hale-Bopp) has a gas production rate for H2O of Q = 8.35 x 1030 molecules per second at 1.5 AU. Estimate the radius of its nucleus in km. (Use 3 sig. figs.)

The pressure, P of an ideal gas, can be expressed as P = nRT/V where n is the number of moles, T is the temperature, V is the volume and R = 8.314JK^-1 mol^-1 is the ideal gas constant. a) Find the expression for deltaP in terms of deltan, deltaT and deltaV: deltaP = deltan + deltaT + deltaV b) Suppose that n = 1, V = 1m^3 and T = 300K initially. If n and V change to 9/5 and 7/10m^3 respectively, estimate the change in T(K) required to keep P constant.

G: V,=10V Vz = 20 V R,:ス S2 Rzこ32 R: I, to I3 VR, to VRJ Pi to PJ %3D R, Vz In I, ドg 5r R3 Rq:72 Rs=G52 Re Nz

There is a colloid in which 300 nm particles are dispersed in water. Find the distance traveled by Brown diffusion(x=(2Dt)^1/2 ) and the distance traveled by sedimentation here, and tell me which is the main behavior between sedimentation and diffusion. here, D=1.0*10^-12m^2/s And particle density is 2.5 g/cm^3 There is stoke equation in picture.

1. A T-shaped bracket supports the four loads shown. Determine the reactions at A and B (a) if a = 10 in

Q4 A first order reaction A-B is being carried out in a CSTR. The feed stream containing reactant "A" at concentration C; is being fed at a constant rate F to reactor (Fig. Q2b). The volume (V) and temperature of the reactor are constant. Derive a transfer function relating concentration of "A" in the product stream (Co) to the feed stream concentration (C). The rate of reaction, r = k Co, Where k rate contant. Viume V

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