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- 1%VY lI. ln. 11:0. خلف التالي nizam aihtizaziun qasriun , yahtazu jism katlatih 2 kaja. تحويل الصوت إلى نص محادثة كاميرا الإنجليزية Forced vibratory system, a body of mass 2 kg vibrates in a viscous liquid. The 20 N harmonic excitation acting on the block produces a resonant amplitude of 15 mm with a period of 0.15 s. Determine the damping factor of the viscous liquid C. Add file ... behind next one II9. How many grams of 235 U are consumed in one year, in order to supply the energy needs of a household that uses 28.0 92 kWh of energy per day, on the average? 178 srg 78 srgl srg178238 U has a natural abundance of 99.3% and 235 U has an abundance of 0.7%. It is the rarer 235 U that is needed for nuclear reactors. The isotopes are separated by forming uranium *UF6 and diffuses slightly faster. Many repetitions of this procedure gradually Uranium has two naturally occurring isotopes. 235 238 hexafluoride UF6, which is a gas, then allowing it to diffuse through a series of porous membranes. UF6 has a slightly larger rms speed than 235 UF6 to that of 238 UF6? separate the two isotopes. What is the ratio of the rms speed of Express your answer to five significant figures. ΑΣφ ?
- of 8 )ニコ3745 ブ=70kg KT(20丁 Rm 2 PE =. KEニ- 3E= tm そっ PE= KE= E=Fg KE = mv², Ug Gm₂mz r2 == 2 ac -2²₁v=2²7₁9= = 27, g = GM, Vesc = = Gm₁m₂ T 2GM VR E = KE + Ug, G = 6.674 x 10-¹1 N. m²/kg² }How much energy in kJ is released to form one mole of 75As from protons, electrons, and neutrons if the nucleus has a mass of 74.921594 amu? The masses of the proton, electron and neutron are 1.00728 amu, 0.000549 amu and 1.00867 amu, respectively. -3.15e10 kJ/mol -6.31e10 kJ/mol -6.31e13 kJ/mol 3.15e13 kJ/mol
- 15. A star initially has 1040 deuterons. It produces energy via the 3 4 processes, H² +₁H² →→ ₁H³ + p and, H² + ₁H³ → ₂Heª + n. 1 the If the average power radiated by the star is 10¹6 W, deuteron supply of the star is exhausted in a time of the order of (a) 106 S (c) 10 ¹² s (b) 108 s (d) 10¹6 s The mass of the nuclei are as follows M(H²) = 2.014 amu; M(n) = 1.008 amu; M(p) = 1.007 amu; M(He* )= 4.001 amu. 45.6 Problems 1. (Zemansky and Dittman, Problem 9.4) Derive the following equations: a) ´ƏF/T` U = F - T ƏT = -T2 ƏT b) 2²F Cy = -T ƏT? c) ´aG/T H = G-T aT -T2 d) Cp = -Ta) For each of the following nuclear equations, state the atomic number, mass number, and symbol X of the missing reactants or products. i. He +Au → 4X +?H 197 A = Z = X: ii. in +Ba → 4X +y 56 A = Z = X: iii. 137CS Ba +4X+7 55 56 A = Z = X: iv. in +X → P +H A = Z = X: v. 210BI 83 81 A = Z = X: b) Choose the correct symbol for the missing particle in the following equation: Na - Ne +9e+ 11 10
- estions 1.602x 10*-1 C, m= 9.11x 10-81 kg, h=6.626x 10^-34 J.s, o=D3x 10'8 m/s, 8.85x10-12 F/m k-1.38x10*-23/K, Avogadro's number= 6.023x10 26, kT = 0.0259 ev (et T=300K) Determine the probability of state being occupied by an electron at (EF-0.04), assume T- 300K 23% O 10% O 17.5% 15.5% O In a parallel-plate diode. the anoce is at 240V with rescect to the cathode7..A spherical system is made up of 95 wt% 235U and 5 wt% 238U. a. Calculate the fission mean free path b. Calculate the absorption mean free path c. Calculate k∞ for this assemblyDo not use Ug=mgh. Please
