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(chatquestion)...10 m 40 m FIGURE 2.7 FIGURE 2.7 shows a stuntman who is moving horizontally takes off from a height of 10 m above the ground and lands 40 m away. Calculate the stuntman's a) b) time of flight take off speed...(Help me)

asked Aug 25, 2020 by 796279193

1 answer

(chatquestion)...5. A ball is thrown with velocity 40 m s1 at an angle 30° above the horizon from a building of height 170 m. Calculate: (a) The time of flight Sy= (b) The horizontal distance from the foot of the building S= (c) Its velocity when it hits the ground (d) Find...(Help me)

asked Aug 25, 2020 by 796279193

1 answer

(chatquestion)...(32. A compound of vanadium has a magnetic moment (u) of 1.73 BM. If the vanadium ion in the compound is present as V** then the value of x is? 2) 2 1) 1 3) 3 4)4

asked Aug 24, 2020 by 854968010

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(chatquestion)...22, The dissociation energy of H2 is 430.53 kJ/ mol. If H2 is dissociated by illumination with radiation of wavelength 253.7 nm. The fraction of the radiant energy which will be converted into kinetic energy is given by 1) 8.77% 2) 2.33% 3) 1.3%

asked Aug 24, 2020 by 854968010

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(chatquestion)...11. An element with mass number 235 contains compared to 55.44% more neutrons as protons. Find the symbol of the atom 235 Th 1) 90 235 Cm 2) 96 235 U 235 3) Pu 92 94

asked Aug 24, 2020 by 854968010

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(chatquestion)...37. The frequency of the characteristic X-ray of Ka line of metal target 'M' is 2500 sec and the graph between v vs 'Z' is as follows, then atomic number of M is Y OA = 1 450 A Vv X 1) 49 • 2) 50 3) 51 4) 25...(Idhuvum)

asked Aug 24, 2020 by 854968010

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(chatquestion)...1. Calculate the molality of 2.69 M sucrose, CaH:O if density of the solution is 1.25 g/mL. Ans: 8.15 mol/kg 2. A solution of 0.750 M sulphuric acid has a density of 1.046 g/mL. What is the molality of this solution? Ans: 0.771 mol kg'...(Help me)

asked Aug 24, 2020 by 796279193

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(chatquestion)...25.Two batteries, two resistors and two condensers arc connected as shown. If the charge on 2µF capacitor is (10k) µC, find k. 3uF E, = 18V = 10 40 15V-E, 2uF

asked Aug 22, 2020 by 736563939

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(chatquestion)...2. Solve the 3. Solve the equation, 32x+1-26(3*)-9= 0 2....(Help me)

asked Aug 21, 2020 by 796279193

1 answer

(chatquestion)...11. In the X-rays tube before striking the target we accelerate the electrons through a potential difference of U volt. For which of the following value of U. we will have X- rays of largest wavelength? (a) 10 kV (b) 20kV (с) 3kV (d) 40kV

asked Aug 21, 2020 by 736563939

1 answer

(chatquestion)...2x+9<x +2x< 24...(How to do this? The inequalities)

asked Aug 20, 2020 by 796279193

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(chatquestion)...t (2(K+1)) EA(K+1) K+3, E A( 2K+1 d. c. t (2K+3, 38. Find the capacitance between P and O (Fig. 4.172). Each capacitor has capacitance C. beleo a. 16 V 43. In the ci points X C. D Fig. 4.172 a. 2C b. 3C е. 8C d. 6C 39. In the circuit shown in Fig. 4.173, C, = 6 uF, C2 3 µF,

asked Aug 20, 2020 by 619669533

0 answers

(chatquestion)...Let z = a+bi be a nonzero complex number. (a) Show that. z zf mot osleen (b) Find the value of a and b if z(2-i) = (z+1)(1+i). %3D...(Help me)

asked Aug 18, 2020 by 796279193

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(chatquestion)...Let z= a+bi be a nonzero complex number. 1 (a) Show that

asked Aug 18, 2020 by 796279193

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Given $\sqrt{6+8i} = a + bi$ , where $a$ and $b$ are real numbers, find $a$ and $b$. (Help me)

asked Aug 17, 2020 by 796279193

1 answer

(chatquestion)...Q. Let y = sin (sin 8) - tan' (tan 10) + cos' (cos 12) - sec' (sec 9) +cot'(cot6)-cosec (cosec 7). If y simplifies to an + b then (a-b) is

asked Aug 15, 2020 by 736563939

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(chatquestion)...(a) Given that Int-2 lnu = 3 ln v express u in terms of t and v....(Help)

asked Aug 15, 2020 by 796279193

1 answer

(chatquestion)...vz[cos()+i sin() cos()-i sin() The complex number z = (a) Express z in the Cartesian form a + bi. (b) Find the modulus and argument of z. (c) Hence, express z in polar form....(Help)

asked Aug 14, 2020 by 796279193

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(chatquestion)...Q6. If 597 is divided by 52, then the remainder obtained is A 3 D O 4-

asked Aug 13, 2020 by 736563939

1 answer

(chatquestion)...1 English - Which of the following compound not decolourise the Br2 + H20 (Bromine water) 1 3 4 CH3 - C = CH

asked Aug 13, 2020 by 1084452675

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(chatquestion)...Chlorine isotopes occur naturally as $Cl and "Cl. The abundance ratio of these two 35 CI isotopes is "Cl 3.127. Based on the scale of carbon-12, the relative mass of CI and "Cl are 34.9689 and 36.9659 respectively. Calculate the relative atomic mass of chlorine. (ANS:35.45)...(Help)

asked Aug 12, 2020 by 796279193

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(chatquestion)...3. 4.8 m 20 30° 5.6 m FIGURE 1 Vector P and Q are shown in FIGURE 1. Determine the component P and Q [ Pe-4.85 m, Q=4.51 m ,Py=-2.80 m, Qy= 1.64 m ]...(Need help

asked Aug 10, 2020 by 796279193

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(chatquestion)...-ar +b Q. If lim 2+1 3D5, then a +b is equal to: %3D -4 B 5 C. -7 D 1

asked Aug 9, 2020 by 736563939

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(chatquestion)...(4) Accelerated towards the walls. Q.31 Pressure exerted by a gas is - (1) Independent of density of the gas. (2) Inversely proportional to the density of the gas. (3) Directly proportional to the density of the P Vzgas, (4) Directly proportional to the square root of the density of the gas. T inorongo0 ro10ing the on

asked Aug 8, 2020 by 504501305

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(chatquestion)...O. For an Isothermal expansion of a perfect gas, the value of AP is equal- -4 C.

asked Aug 7, 2020 by 736563939

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(chatquestion)...A parallel plate capacitor consists of two circular plates with radius R = 10 cm separated %3D by d = 0.5mm. The capacitor is being charged at a uniform rate by applying a changing potential difference between the two plates. Asume that the field is due to displacement current only and that the rate at which the electric field between the plates changes is 5 x 1013 (V/m-s). The displacement current in the capacitor is a) 1.39 A b) 13.9 A c) 139 A d) 0.139 A

asked Aug 7, 2020 by 981932063

1 answer

(chatquestion)...Scarned with Camscarner -7) Charges of -2x10-10 C, +2x10-10 C and +4x10- 10 C are placed at the corners A, B and D of a square of side 2m. Calculate the resultant field at the centre of the square.

asked Aug 7, 2020 by 981932063

0 answers

(chatquestion)...Two particles moving on a circular path are diametrically opposite, the radius is 1m. The ratio of magnitude of relative velocity and relative angular speed between them is (A) O (B) 1 (C)2 (D) 3 A portiol

asked Aug 5, 2020 by 707174755

1 answer

(chatquestion)...dt 2+ e dt

asked Aug 4, 2020 by 736563939

1 answer

(chatquestion)...NH [Co(H20)6 ]Cl3 A +B + C A, B and C are complexs with different coordination entity without any H20 molecule. Among these C shows two different spatial arrangements one is green and another is violet complex respectively. Colour of A and B complexes are yellow & purple respectively. Then which of the following statement is CORRECT ? Question Type: Single Correct Type Aqueous solution of yellow complex 1 shows Vant hoff factor (i) = 3 in colligative properties. %3D One mole of green complex produces 2 one mole AgCI on reaction with AGNO3. Green and violet complexes are optical 3 isomer respectively. Yellow and purple are geometrical 4 isomers to each other. +

asked Aug 3, 2020 by 619669533

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(chatquestion)...Let f: R R, g R R be continuous functions. Then the value of integral X f 4 [f(x)-f(-x)] en1/2 -dx is - en 2 gn [g(x)+g(-x)] 4 (A) dependent on A (B) a non- zero constant (С) zero (D) None of these wwwwg

asked Aug 2, 2020 by 736563939

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(chatquestion)...Let f(x), g(x) & h(x) be continuous function on [0, a] such that f(x) = f(a= x), g(x)= g(a-x), 3h(x) - 4h(a- x)= 5. then | f(x) g(x) h(x) dx = 0. (A) 1 (C) a (B) 0 (D) None of these

asked Aug 2, 2020 by 736563939

1 answer

(chatquestion)...Calculate the increase in angulan mementum when electrion jump Inom second oabit to yth onbir ?

asked Aug 2, 2020 by 831769186

1 answer

(chatquestion)...The anodic half-cell of lead-acid battery is recharged using electricity of 0.05 Faraday. The amount of PbS04 electrolyzed in g during the process is [Molar mass of PbSO4 303 g mol] %3D (d) 22.8 (January 2019) (a) 15.2 (b) 11.4 (с) 7.6

asked Aug 2, 2020 by 736563939

1 answer

(chatquestion)...(а) 5.9 (b) 47.125 (c) 94.25 (d) 88.2 81. 342 g of 20% by mass of Ba(OH), solution (sp. gr. 0.57) is reacted with 1200 mL of 2 M HNO 3. If the final density of solution is same as pure water then molarity of the ion in resulting solution which decides the nature of the above solution is: (а) 0.25 82. 100 mL of H,SO4 solution having molarity 1 M and density 1.5 g/mL is mixed with 400 mL of (b) 0.5 М (c) 0.888 M (d) None of these water Co

asked Aug 1, 2020 by 831769186

1 answer

(chatquestion)...The pressure of the gas was found to decrease from 720 to 480 mm. When 5g of sample of activated charcoal was kept in a flask of one litre capacity maintained at 27°C. If the density of charcoal at 1.25 gm/ mL. The volume of gas adsorbed per gm of charcoal at 480 mm of Hg is (A) 80.03 mL (B) 32.20 mL (C) 100.08 mL (D) None of these

asked Aug 1, 2020 by 736563939

1 answer

(chatquestion)...2x+2 sin dx 4x +8x +13

asked Jul 31, 2020 by 736563939

1 answer

(chatquestion)...asystemi, work done by external force is O J An object is moving through air at a speed v.A is the area of the object normal to the direction of velocity. Assuming elastic collision of the object with air molecules, the air drag on the object is proportional to V", where n is equal to

asked Jul 30, 2020 by 955910236

0 answers

(chatquestion)...Two particles moving on a circular path are diametrically opposite, the radius is 1m. The ratio of magnitude of relative velocity and relative angular speed between them is (A) O (B) 1 (C) 2 (D) 3 A portiel

asked Jul 30, 2020 by 707174755

0 answers

(chatquestion)...Let An be the area enclosed by the nth orbit in a hydrogen atom. The graph of hn(A/A1) against In(n) - (A) Will not pass through the origin (B) Will be a straight line with slope 4 (C) Will be a monotonically increasing non- linear curve (D) will be a circle

asked Jul 30, 2020 by 736563939

0 answers

(chatquestion)...emy 10x +10* log 10 dx is equal to- 10 x"+10* (A) 10*-x10+c (B) 10x+x10+c (C) (10x-x 10)-+c (D) log (10%+x10)+c

asked Jul 30, 2020 by 736563939

0 answers

(chatquestion)...1. ABCD is n square and P. Q are the midpoiuts of BC, CD respectively. If AP = a and AQ b. find in terms of a and b, the directed line segnents (i) AB. (i) AD. GIE) BD and (iv) AC....(Please can someone help with this question)

asked Jul 29, 2020 by 922971828

1 answer

(chatquestion)...Q7. Find the value of 0, A 60° в 53° C 45° D 37° - 90 ->

asked Jul 27, 2020 by 845909505

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(chatquestion)...5. If fesccx (sec x tan x f(x) + (sec x tan x + sec?x)) dr esecx Ax) + C, then a possible choice of f(x) is 1 (b) xsecx+ tan x+- 2 %3D 1 (a) secx+tan x+- 1 (d) secx-tan x - 2 1 (c) secx+xtan x-- 2

asked Jul 27, 2020 by 736563939

1 answer

(chatquestion)...OSQO X sime Cose ek+tanx seens sin'ke sinx seee D = %3D sinke sin'e : D = 2

asked Jul 27, 2020 by 736563939

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(chatquestion)...83. Which of the following alcohol react with Lucas reagent as fast as tertiary alcohol? (1) CH CH-CH,-OH CH,-OH (2) (8)

asked Jul 26, 2020 by 845909505

1 answer

(chatquestion)...2 tan x +cot2 T1+ tan x TC dx is equal to TC a. e tan 4 b. e tan x- +c - 4 c. e tan -x +C 4 c. None of these

asked Jul 25, 2020 by 736563939

1 answer

(chatquestion)...So s Pa isl imay Case Cig Rc y RA P TT in Bon's 80n6 Curswとcae Rc 7 Ro -> R7 Pa

asked Jul 25, 2020 by 932645525

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(chatquestion)...Poutel 100 -4R 25 L paralli 4R ad R as う ' UR 4R 4198

asked Jul 25, 2020 by 932645525

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(chatquestion)...82 レく R () 14 4. PA s may Case lig RA Rc 7

asked Jul 25, 2020 by 932645525

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