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(chatquestion)...A mass M oscillates at the end of a spring that has spring constant k and finite mass m. (a) Show that the total energy E of the system for oscillations of small amplitude is given by E = 12(M +m/3)v2 + 12kx2 where v and x are the velocity and displacement of the mass M, respectively. (Hint: To find the kinetic energy of the spring, consider it to be divided into infinitesimal elements of length dl and find the total kinetic energy of these elements, assuming that the mass of the spring is evenly distributed along its length. The total energy E of the system is the sum of the kinetic energies of the spring and the mass M and the potential energy of the extended spring.) (b) Hence show that the frequency of the oscillations is equal to √k/(M + m/3).

asked Feb 8, 2020 by balaji.thirumalai

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(chatquestion)...HI excess Н I ОН...(Plz explain this mechanism)

asked Feb 8, 2020 by balaji.thirumalai

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(chatquestion)...A particle oscillates with amplitude A in a one-dimensional potential U (x) that is symmetric about x = 0, i.e. U (x) = U(-x). (a) Show, from energy considerations, that the velocity v of the particle at displacement x from the equilibrium position (x = 0), is given by v = /2[U (A) – U(x)]/m. (b) Hence show that the period of oscillation T is given by dx T = 4, V[I- U(x)/U(A)] 2U (A) Simple Harmonic Motion (c) If the potential U (x) is given by U (x) = ax" where a is a constant and n = 2, 4, 6, ..., obtain the dependence of the period T on the amplitude A for different values of n = 2, 4, .... (Hint: Introduce the new variable of integration = x/A in the above expression for the period T.)

asked Feb 8, 2020 by balaji.thirumalai

0 answers

(chatquestion)...1.12 A mass M oscillates at the end of a spring that has spring constant k and finite mass m. (a) Show that the total energy E of the system for oscillations of small amplitude is given by 1. E = (M + m/3)v² +kx? where v and x are the velocity and displacement of the mass M, respectively. (Hint: To find the kinetic energy of the spring, consider it to be divided into infinitesimal elements of length d! and find the total kinetic energy of these elements, assuming that the mass of the spring is evenly distributed along its length. The total energy E of the system is the sum of the kinetic energies of the spring and the mass M and the potential energy of the extended spring.) (b) Hence show that the frequency of the oscillations is equal to k/(M + m/3).

asked Feb 8, 2020 by balaji.thirumalai

0 answers

(chatquestion)...Henry law constant for the solubility of ethylene in water at 20 C is 1.01x10-4 atm-1, calculate the weight of ethylene which will dissolve in 1000 g of H2O under ethylene pressure of 2 atm at 20 C 0.431g 0.134g 2 0.413g 0.314g 4

asked Feb 8, 2020 by balaji.thirumalai

1 answer

(chatquestion)...PAGE NO DATE A unit coll of Nickle %23 face Sentre Cube 0•064 Nm 3. is of fund Atomic Radius of Ni. Volume O 141 Pm (a) 145 Pm () 160 pm (b) 153 pm...(Give me solution)

asked Feb 8, 2020 by balaji.thirumalai

0 answers

(chatquestion)...JEE (Main & Advanced) (Level-IlI) Electric Charges and Fields 81 6. An infinitely long uniform line charge distribution of charge per unit length 2 lies parallel to the y-axis in the V3 a (see figure). If the magnitude of the flux of the electric field through the rectangular y-z plane at % = surface ABCD lying in the x-y plane with its centre at the origin is (E, = permittivity of free space), then neo %3D the value ofn is Eloctrestall pacitance в Two inifinite rods parallel to z-axis with linear charge density passes through points (-a, 0, 0) and (a, 0, 0) charge (-g) and mass m placed at origin is given slight displacement 7.

asked Feb 8, 2020 by balaji.thirumalai

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(chatquestion)...0-4. Find the coefficient of x7 in (1– 2x + x³)5 ....(Pls solve this)

asked Feb 7, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Ut dy Ao cos (@t -kx) dt Particle velocity v, Vp =-V x slope = dy = -V p. dx dy Particle acceleration : a, ôt? 2²Asin (ot-kx) = -o°y For particle 1: V, v and For particle 2: v 1 and at For particle 3: v 1 and a ↑ For particle 4 : V v and a ↑ 2. 4. p. neiauon velween phase difference, path difference & time difference Δφ Δλ ΔΤ...(Esko koi please explain kar do...)

asked Feb 7, 2020 by balaji.thirumalai

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(chatquestion)...-- / \ Question 10 For a certain binary solution at constant T and P Vm=a1 +2 a2 m +3 a3 m2 Where m is the molality, a1, a2 and a3 are constant and Vm is the partial molar volume. Deduce the expression for the total volume VT as function of m VT = 2 a2 m2 + a3 m3 T = a1 + a2 m2 + m3 VT = 2a1 + 3 a3 m3 3 %3D VT = a1 +2 a2 m2 + 3a3 m3 4 21

asked Feb 7, 2020 by balaji.thirumalai

1 answer

(chatquestion)...-- / Question 13 Two liquids A &B form an ideal solution at Temperature T, when the total vapor pressure above the solution is 600 torr, the mole fraction of A in the vapor phase is 0.35 and in the liquid phase is 0.7, What are the vapor pressure of pure A &B at temperature T. POA=0.300 torr, PoB=1.300 torr POA=300 torr, PoB=1300 torr POA=1300 torr, PoB=300 torr POA=303 torr, PoB=3300 torr 4

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...Not Attempted A plant with genotype AABBRITE. What would be percentage of gamete containing four dominant allele:- (B) 37.5% (A) 12.5 % (C) 6.25 % (D) 25Po

asked Feb 7, 2020 by balaji.thirumalai

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(chatquestion)...Naoo, lequivalont leapivalent b) an,o OCH CH2...(Given Answer is (a). Can anyone justify?)

asked Feb 7, 2020 by balaji.thirumalai

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(chatquestion)...CH3 CHi3 SHiyhtI f CHs Low +I df CHis duu to distemce

asked Feb 7, 2020 by balaji.thirumalai

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(chatquestion)...2) Write the number of factors of 64 x 5 a) 16 b) 10 c) 25 d) 50

asked Feb 7, 2020 by balaji.thirumalai

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(chatquestion)...What is the change in internal energy when a gas is compressed from 377 ml to 177 ml under a constant pressure of 1520 torr, while at the same time being cooled by removing 124 J heat ? (Take : (IL atm) = (A)-24 J 100 J] (B) - 84 - 164 J J (C) (D) - 248 J

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...— сн dur 0E Г- Он Э. Вир CH3 он 3- ри 4. 1स of CHz...(Tell please Acidic strength order with reasoning)

asked Feb 7, 2020 by balaji.thirumalai

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(chatquestion)...In the following ester there are three carbon oxygen bonds denoted by x, y and z Nurtur ing potentia Their lengths are in order CH;-C-O-CH, У Z (В) х <у <z (D) z < y < x (A) x = y = z (C) x < y = z 4....(Q4)

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...In the following ester there are three carbon oxygen bonds denoted by x, y and z Nurtur ing potentia Their lengths are in order CH;-C-O-CH, У Z (В) х <у <z (D) z < y < x (A) x = y = z (C) x < y = z 4....(Q4)

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...Questions 6 to 10 are one word answers: (6) Name the substance used as depressant in the separation of two sulphide ores in Froth floatation method. (7) Name the unit formed by the attachment of a base to l' position of sugar in a nucleoside. (8) Name the species formed when an aqueous solution of amino acid is dissolved in water? (9) What type of reaction occurs in the formation of Nylon 6.6 polymer?...(Photo from Akshay Kumar Yadav)

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...Const volume of Ches at p' Afom pressuu i to increased by 10%. of holume faitice the new s. 10%. by by Remain Dee 10% fame None P.v, = %3D

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...volume of gas Constant %23 At is énireased by tempreture fressane p. Ý the puesure at 10%. of volume initiee'pressare be.'9 will New

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...COONA, X is : 8. Conc.NaOH Он -CH, (D) H- (B) (A) -СНО 8.

asked Feb 7, 2020 by balaji.thirumalai

1 answer

(chatquestion)...mix mix For two liquids A and B forming ideal solution. 67. 67 If P > P then which of the following is correct? X, alwaysX (2) YA= (WY, > X, A. A. (4) P, = PX+ P (3) X, > Y %3D

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...NATIONAL AVIATION UNIVERSITY EXAMINATION PHYSICS on the subject Student's name Faculty Department Speciality: year of study academic group No General and Applied Physics 272 "Aviation Transport" Date « 20 >> VARIANT No28 Write down and explain Ohm's law (write down formulas and draw corresponding schemes) A load with the mass of 2 kg is attached to the cord end wrapped around a drum. Find the drum Consider the drum to be a homogeneous cylinder. eration of the load is 3 m/ mass if acc Disregard friction Charge of +2,5-10-7 C is placed in the square center. What charge should be placed in each square vertex the system of charges to be in the equilibrium state...(2 and 3. Please)

asked Feb 7, 2020 by balaji.thirumalai

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(chatquestion)...9 The diagram shows part of the curve y =- line x = k. 3-x and the straight YA y =-3-x If the volume generated when the shaded region is revolved through 360° about the x-axis is units', find the value of k. 12...(How to do this?)

asked Feb 7, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Question 11 -- / \ Henry law constant for the solubility of ethylene in water at 20 C is 1.01x10-4 atm-1, calculate the weight of ethylene which will dissolve in 1000 g of H2O under ethylene pressure of 2 atm at 20 C 0.431g 0.134g 2 0.413g 0.314g 4 3.

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...-- / \ Question 5 The volume of an aqueous NaCl solution at 25C is expressed as function of amount in 1Kg of solvent in the following term V(mL)=1000.44+16.4m+2.014m3/2-0.00275/2 Calculate the partial molar volume of water and NaCl respectively when m=1 17.98 &194.14 ml 18.79 &19.414 ml 179.8&19.414 ml 3 17.98 &19.414 ml 4

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...11. A massless rope is wrapped several times on a disc of mass M and radius R. The other end is tied to a mass m which at the begining is at a height of h above the ground as shown in the figure. When released the velocity of the mass as it touches the ground is - (1) v4/3 gh (2) v2gh (3) V4mgh/3M (4) V4mgh/M + 2m

asked Feb 7, 2020 by balaji.thirumalai

1 answer

(chatquestion)...lim liin 2. ))...(11. Maths (limits and derivatives). Can someone tell me that when x is tending towards infinity, how come all the X's in f(x) become 1? Thank You in advance!)

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...The coefficient of x?y?, yzt? and xyzt in the expansion of (x + y + z+ t)* a (A) 4:2:1 (C) 1:2:4 1. (B) 2:4:1 (D) 2:3:4 32003 where {.} denotes the fractional part, is equal to 2. The value of 28 15 (A) 28 5 (B) 28 19 (C) 28 9. (D) 28...(Photo from Srayan Bhattacharyya)

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...8. The F, plant of genotype "Tt' produces T and t gametes in equal proportion. Chance of male gamete 't' to combine with female gamete "F self pollination is :- f1) 25% 50% (3) 100% 1 TA (4; 75%...(Please do solve it)

asked Feb 7, 2020 by balaji.thirumalai

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(chatquestion)...The correct structure of the product of the following reaction will be Me Et NH, NH2 (2) HO (1) Но NH, NH2 (4) H,N (3) NH, ОН 9....(Solution pls)

asked Feb 7, 2020 by balaji.thirumalai

1 answer

(chatquestion)...2Kclt 30 2K ceOz mars – vodume selaton 3x 224 Lit 2x122'5gm- (x)? 67.2lit 2X 122.5X6 %3D 245gm

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...NEET & AIIM (26 How many moles of Al,O, will be formed when: mixture of 5.4 g of Al and 3.2 g of O, is heated? (2) (1) 10 15 (4) (3) 20 27. 2 litres of N, and 2 litres of H, on complete reaction would give . litre of NH, (1) 0.665 L (2) 1.0 L (4) 1.33 L (2)x1 (3) 1.00 L 28. 5.6 L of gas at STP weighs equal to 8 g. The vapour density of the gas is (1) 32 (2) 16 (3) 64 29) 2 g of base 'X' requires 100 ml of 0.4 N acid for complete neutralisation. The equivalent weight of (4) 8 base is (1) 50 (3) 5 (2) 100...(All)

asked Feb 7, 2020 by balaji.thirumalai

1 answer

(chatquestion)...in a sample of Sue (2) 0.24 A 048 Compute the mass in grams of KCIO, necesa b produce 67.2 litres of oxygen at S.TP acodinglb the reaction 2KCIO, (s) → 2KCI(s) + 30, () [Molecular weight of KCIO, = 12.5] (2) 2 (1) 96 (4) 245 ICH OLin nomal blood (3) 122.5

asked Feb 7, 2020 by balaji.thirumalai

1 answer

(chatquestion)...A solid cylinder of mass m is suspended through two strings wrapped around it as shown in figure. The cyclinder is released. Find the tension T in the string - T. mg mg (1) 4 mg (2) mg (3) mg (4) 3

asked Feb 7, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Which of the following I.U.P.A.C name is correct- Column 1 Column II (1) - 3-oxo propanoic acid н ОН (II) methyl-2-formyl ethanoate Н (III) 2-butene 4-dioyl chloride Cl (1) I, II, III (2) Only I, II (3) Only I, III (4) Only II, III

asked Feb 7, 2020 by balaji.thirumalai

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(chatquestion)...Match the column I & II Column II Colump I (no. of stereoisomers) CH,-CH = CH-CH N- OH (A) CH, = CH- CH CH, (B) CH,-CH= CH - CH = CH - CH =CH – CH, (R) (P) (Q) %3D (C) 4 (D) |(S) 6. |(E) CH,-CH= CH-CH CH -CH CH - Ph (T) %3D (1) A - Q, B - P, C - R, D - S, E - T (2) A - R, B - Q, C - P, D - T, E - S (3) A - R, B - P, C - S, D - Q, E - T (4) A - S, B - P, C - Q, D - R, E - T

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...(1-x')f (x)– xf (x) is (a) 0 (d) 3 (b) 1 (e) 4 (c) 2 10 , then f(1)+/O,S () , f"() 12 8. If f(x)=| f(10 (1) is equal to 10 (a) 1 (d) 512 (b) 10 (e) 1024 If f(4) = 5, g '(4) =12, ƒ (4)g(4) = 2 and (c) 11 9. %3D %3D

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...69. Count total no. of (DBE/D.O.U) in following compound - FISTRS H- (1) 8 (2) 10 (3) 11 (4) 12

asked Feb 7, 2020 by balaji.thirumalai

0 answers

(chatquestion)...A man invested a certain sum of Rs 80000 in 3 banks a b c @15% ,16%,27%. Amount invested in bank A is 20% of the amount invested in C. Find the amount invested in bank B ,if he earn a interest of Rs 36400 S.I in 2 years.

asked Feb 7, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Consider the following reaction: 23 -CH:+Br- CH;CH, Which of the following types ofhydrogen atoms are most easily abstracted by the bromine atom to form HBr ? (1) Hydrogen atoms attached to a benzene ring (2) Hydrogen atoms of the methyl group attached directly to a benzene ring -(3) Hyrogen atoms of the methylene group of the ethyl substitutent (4) Hydrogen atoms of the methyl group of the ethyl substituent

asked Feb 7, 2020 by balaji.thirumalai

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(chatquestion)...25 In a blood transfusion, blood flows from a bottle at atmospheric pressure into a patient's vein in which the pressure is 20 mmHg higher than atmospheric. The bottle is 95 cm higher than the vein, and the needle into the vein has a length of 3.0 cm and an i.d. of 0.45 mm. How much blood flows into the vein each minute? For blood, 7 = 0.004 0 Pa s and p 1005 kg/m'. Ans. 3.4 cm

asked Feb 7, 2020 by balaji.thirumalai

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(chatquestion)...Using Kirchhoff's rules in the given circuit, determine (i) the current I, in the arm EF. (ii) the voltage drop across the unknown resistor R and 0.5 A 3 V 12 4 V elme www- All India 2011

asked Feb 6, 2020 by balaji.thirumalai

1 answer

(chatquestion)...A straight line plot showing the terminal potential difference (V) of a cell as a function of current (I) drawn from it is shown in the figure. Using this plot, determine Et E=1.4 V | = 0.28 A Intosion ww. E Current in circuit, i = R+r (i) the emf and

asked Feb 6, 2020 by balaji.thirumalai

1 answer

(chatquestion)...In the given circuit, assuming point A to be at zero potential, use Kirchhoffs rules to determine the potential at point B. 2 V D 2 A 1 A A H 2 A 1 V

asked Feb 6, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Phenyl methyl ether reacts with HI to give phenol and methyl iodide and not iodobenzene and methyl alcohol. Why?

asked Feb 6, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Explain the following by giving one example. Friedel-Crafts acetylation of anisole.

asked Feb 6, 2020 by balaji.thirumalai

1 answer

(chatquestion)...Write the IUPAC name of the given compound: CH3-CH-CH,-0-CH2-CH3 CH3

asked Feb 6, 2020 by balaji.thirumalai

1 answer

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