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##### Question 21 ptsConsider the weak acids below and their Ka values:HFKa = 7.2* 10-4HNOzKa 4.5*10-4HCNKa = 6.2 x 10-10Arrange the conjugate bases of these weak acids in order of increasing base strengthNOz CNNOz < F- CNCN- < F- NOzCN- NOz

Question 2 1 pts Consider the weak acids below and their Ka values: HF Ka = 7.2* 10-4 HNOz Ka 4.5*10-4 HCN Ka = 6.2 x 10-10 Arrange the conjugate bases of these weak acids in order of increasing base strength NOz CN NOz < F- CN CN- < F- NOz CN- NOz...

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##### PHY 251 SP 193/4/19Name:PROBLEM 1object falling vertically in . resisting fluld the differential equation of motion For an mg cv , c Is a constantemdvld: mg cv2mdvldt mBFind Its terminal velocity: Solve Equation (3) for time assuming the object is released from rest: Using this previous result = find an analytical expression for Its velocity: What are the units of c?

PHY 251 SP 19 3/4/19 Name: PROBLEM 1 object falling vertically in . resisting fluld the differential equation of motion For an mg cv , c Is a constant emdvld: mg cv2 mdvldt mB Find Its terminal velocity: Solve Equation (3) for time assuming the object is released from rest: Using this previous resul...

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##### 6) a Using SHtL/difference idlentities , determine the following donble augle icleutities: â‚¬os and 5in(20 } h. Suppose that csc(0) -13/ and that tan(&) What cos(0 " Determine sin(0). Sketeh (cos(0) , sin(0))_ Caleulate exact Values for Cos(20= Au sin(20} . In what quadrant is (cs("28) , sin(20)) located: what quadrant is (c0s/20 sin( 20 #)) located? Using interval notation. describe the values of in [0.25} for #hich sin?(r} Cos" cut? (2) csc"(): iii. tan?kr +1 = sc?

6) a Using SHtL/difference idlentities , determine the following donble augle icleutities: â‚¬os and 5in(20 } h. Suppose that csc(0) -13/ and that tan(&) What cos(0 " Determine sin(0). Sketeh (cos(0) , sin(0))_ Caleulate exact Values for Cos(20= Au sin(20} . In what quadrant is (cs(&quo...

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##### Acidity or Basicity of Salt Solutions:Will 0.10 M aqueous solutions of the following salts be acidic basic or neutral? (Assume a solution is neutral if its pH is 7.00+0.05)_ Equilibrium constants may be found in an appendix to your text;neutralsodium sulfate (NazSO4) ammonium formate (NHACHOz) ammonium sulfate ((NH4)2SO4) sodium monohydrogen citrate (NazHC6HsOz) sodium chloride (NaCl)acidicacidicbasicneutral

Acidity or Basicity of Salt Solutions: Will 0.10 M aqueous solutions of the following salts be acidic basic or neutral? (Assume a solution is neutral if its pH is 7.00+0.05)_ Equilibrium constants may be found in an appendix to your text; neutral sodium sulfate (NazSO4) ammonium formate (NHACHOz) am...

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##### Fid 24 andLeawe your arshers poalan18(czr 110" BreZdeEinudy Nna4o Wat 6 the produci? OlD snD] (smdky YOJt ensher anyaralc Melaies DeuieeIhitor GqLal I0 0 and less than 360 |Whaibt qlolicnn? Dl~E-DI (Emplly Youi Anstvers Hype aNyarain Mcasure? 0e3ieesHicnininnalm @and(tjn 360)Eeniet YoUr 3nscech 0lLE nnslt hoxoz

Fid 24 and Leawe your arshers poalan 18(czr 110" BreZde Einudy Nna4o Wat 6 the produci? OlD snD] (smdky YOJt ensher anyaralc Melaies Deuiee Ihitor GqLal I0 0 and less than 360 | Whaibt qlolicnn? Dl~E-DI (Emplly Youi Anstvers Hype aNyarain Mcasure? 0e3iees Hicnini nnalm @and (tjn 360) Eeniet Yo...

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##### Suppose 70% af kids who vicit doclor have Tovat and 4593 ol kid; wih fever have s0r0 Ihroats Whal : the prcbability lever and sore throar?kid who gpesdoctur hrasThe probability is (Round t0 throe decimal placos needed )

Suppose 70% af kids who vicit doclor have Tovat and 4593 ol kid; wih fever have s0r0 Ihroats Whal : the prcbability lever and sore throar? kid who gpes doctur hras The probability is (Round t0 throe decimal placos needed )...

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##### Randan sample males, it was tound Inal wre Mh Ihef keIt hands und 212 do not andom lest the clalmn Ihat the raba oilei-nandadnese samiple of fe friales, nmong males less Ihan that Iound Ihal umong [e ndle 5 Conplele pants Idenun (a) bhough belov les StaleicIneir left hands and 436 do noL Use . 0 01 signlicance(Ronnodecimal places needed | Identify Ihe AateP-alue (Round tet decimalplaces neaded } Whal ( te conclusion based Ihe hypothesis lest? ~alue Oreole Ine spmlicance Iate among lemale eletech

randan sample males, it was tound Inal wre Mh Ihef keIt hands und 212 do not andom lest the clalmn Ihat the raba oilei-nandadnese samiple of fe friales, nmong males less Ihan that Iound Ihal umong [e ndle 5 Conplele pants Idenun (a) bhough belov les Staleic Ineir left hands and 436 do noL Use . 0 01...

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##### Solve each inequality. Graph the solution set, and write it using interval notation. $4 x-(6 x+1) \leq 8 x+2(x-3)$

Solve each inequality. Graph the solution set, and write it using interval notation. $4 x-(6 x+1) \leq 8 x+2(x-3)$...

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##### Problem 3 Let 2 be F HTotient Function_ Find 6(4620)

Problem 3 Let 2 be F HTotient Function_ Find 6(4620)...

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##### Qusian %poiniWhkh oi the {clloting &4oys QUe IOI ntegsble Mnco9nsSrx)dx Wrere Ax)-0 AxldxAx)Jitx) gxlJax = J Kxlax: dxldxJitx) - Axllax = Axlax - fnxlaxM[tx) + Axllax = Axlax * JaxlaxQusicn %1FointSuppose _ Fls contnucus Oocheclosed nterval3]-If Fis en antlderherive Di f , wnlch oi the tclowing equel( ceintenceoneI(xJax?F(3) - 7( - DF( - 1) + F(3}7(3)+ F- 1)F( - 1) - F(3)

Qusian % poini Whkh oi the {clloting &4oys QUe IOI ntegsble Mnco9ns Srx)dx Wrere Ax)-0 Axldx Ax) Jitx) gxlJax = J Kxlax: dxldx Jitx) - Axllax = Axlax - fnxlax M[tx) + Axllax = Axlax * Jaxlax Qusicn % 1Foint Suppose _ Fls contnucus Oocheclosed nterval 3]-If Fis en antlderherive Di f , wnlch oi th...

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##### R-9 cm; m;-0.7kg7p74 cm; mp-0.S0kgrwF7.5 cm mx74 kg0-2206.A 4kg wheel held in a frame of negligible mass rolls down a 229 ramp. The frame is attached to a massless string; which in turn is threaded over a pulley of 4 cm radius and 0.50 kg mass. The string is then wound around a uniform hollow spherical globe (shell) having radius of 15 cm and a mass of 0.07 kg; rotates about its vertical axis On frictionless bearings. Assuming the wheel starts from rest; find its velocity after it has travelled

r-9 cm; m;-0.7kg 7p74 cm; mp-0.S0kg rwF7.5 cm mx74 kg 0-220 6.A 4kg wheel held in a frame of negligible mass rolls down a 229 ramp. The frame is attached to a massless string; which in turn is threaded over a pulley of 4 cm radius and 0.50 kg mass. The string is then wound around a uniform hollow sp...

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##### A safety specialist at the registry of motor vehicles hasimplemented the following policy for license plates. Each platemust have 6 characters. The first 3 characters must be letters withno repeats allowed. The last 3 characters must be digits (notincluding the digit zero) with no repeats allowed. How many uniquelicense plates are possible?

A safety specialist at the registry of motor vehicles has implemented the following policy for license plates. Each plate must have 6 characters. The first 3 characters must be letters with no repeats allowed. The last 3 characters must be digits (not including the digit zero) with no repeats allowe...

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##### Name:_Student ID:_Phys 115 Homework #1O Fall 2019 Due at the start of Tuesday; 26 Nov 2019 at 14.30Justify your answer. Neatness and legibility will be taken into account in gradingAn electromagnetic WaVC with wavelength of 500nm is travelling in space: Its magnetic field is given as B(z,t) = Bo cos(kz + wt) , with Bo = (0.002Ti + 0.003Tj) Givc the corresponding clectric field E(z,t) for this WaVC _ Give YOur anSwcr aS a similar function aS B(z,t) WalS givel; specifying amnplitude and any other

Name:_ Student ID:_ Phys 115 Homework #1O Fall 2019 Due at the start of Tuesday; 26 Nov 2019 at 14.30 Justify your answer. Neatness and legibility will be taken into account in grading An electromagnetic WaVC with wavelength of 500nm is travelling in space: Its magnetic field is given as B(z,t) = Bo...

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##### Q-1. [5x4 marks] a) How many three-digit numbers can be formed from the digits 0,1,2,3,4, 5,and 62 b) How many three-digit numbers can be formed from the digits 0,1,2,3,4, 5,and 6 if each digit can be used only once? c) How many odd numbers can be formed from the digits 0, 1,2,3,4,5,and 6 if = each digit can be used only once? d) How many three-digit numbers greater than 330 can be formed from the digits 0, 1,2,3,4,5,and 62 e) How many three-digit numbers greater than 330 can be formed from the

Q-1. [5x4 marks] a) How many three-digit numbers can be formed from the digits 0,1,2,3,4, 5,and 62 b) How many three-digit numbers can be formed from the digits 0,1,2,3,4, 5,and 6 if each digit can be used only once? c) How many odd numbers can be formed from the digits 0, 1,2,3,4,5,and 6 if = each ...

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##### Find (u, % Ilull: Ilvll, and dtu; %) for the given inner product delined on R u = (155 8) , V = (-5, 12} (W, v) = M (u, v

Find (u, % Ilull: Ilvll, and dtu; %) for the given inner product delined on R u = (155 8) , V = (-5, 12} (W, v) = M (u, v...

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##### Gulainne @llowing inkgb 3iom all work 6Fare 4 of $Jn &Itsin*Srhrb (bx)

Gulainne @llowing inkgb 3iom all work 6 Fare 4 of $ Jn & Itsin* Srhrb (bx)...

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##### Block mass m = %,7 kgis kopt = Hnchnacemnne Lanaie 0 Inste 0nyator movino dowr trictcl bCIhat Iot Ina blcck movc down conea velociyrenien Intelevator" Maal mt0.90

block mass m = %,7 kgis kopt = Hnchnacemnne Lanaie 0 Inste 0nyator movino dowr trictcl bCIhat Iot Ina blcck movc down conea velociyrenien Intelevator" Maal mt 0.90...

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##### Question (1 point) What the ass piece of magnesium wire that produces 44.7 mL of hydrogen gas llected over water at 22.2*C and at pressure of 751 torr? Assume the water vapor pressure at 22.2oC is 23.0 torr.Your Answer:Answerunits

Question (1 point) What the ass piece of magnesium wire that produces 44.7 mL of hydrogen gas llected over water at 22.2*C and at pressure of 751 torr? Assume the water vapor pressure at 22.2oC is 23.0 torr. Your Answer: Answer units...

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##### 1. Find the equation of the line tangent to the function f(c) at â‚¬ = 4f(z) 22 _ 4

1. Find the equation of the line tangent to the function f(c) at â‚¬ = 4 f(z) 22 _ 4...