ST\'P while it metes completely to water. What is its change ine tropy? (For ice
ID: 1731833 • Letter: S
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ST'P while it metes completely to water. What is its change ine tropy? (For ice, Lf-334 x 10% a 12, irthe sive of the change value is ripled fer both of two point charges maintained at a constant separation, the mutual force benween A) 90 B)0.33 C) 18.0 D) 19 E) 3.0 13. Doubling the f-number of a camera lens will change the light intensity admitted to the film by what factor? A) 8.0 B) 0.50 C) 0.25 D) 4.0 E) 2.0 14. A unifoerm 1.5 T magnetic field passes through the plane of a wire loop 0.3 m, in area What flux passes through the loop when the direction of the 1.5 T field is at a 30 angle to the normal of the loop plane? A) S Wb B) 0225 Wb C) 039 Wb D) 052 Wb E) 064 w 15. A meter stick moving in a direction parallel to its length appears to be only 40 cm long to an observer. What is the meter stick's speed relative to the observer? (c 3 x 10* m/s) A) 3.00 x 10 m/s B) 2.52 x 10 m/s C) 2.75 x 10* m/s D) 1.19 x 10 m/s E) 2.93 x 10 m/s 16. Two capacitors with capacitances of 1.5 and 2 microfarads, respectively, are connected in parallel. The parallel conbination is then connected in series to a 3 capacitor. The systom is connected to a 40 v battery. What charge accunulates on the 1.5 uF capacitor? A) 27.69 uc B) 9 uc C) 60 Uc D) 75.9 uC E) 180 uc 17. What is the self-inductance in a coil which experiences a l .5 V induced emf when the current is changing at a rate of SS A/s? A) 37mH B) 33 mH C) 45 mH D) 83 mH E) 27 mH An ac series circuit contains a resistor of 20 ohms, a capacitor of 0.75 microFarads and an inductor of 120 mR, What frequency should be used to create a resonance condition in the cireuit? A) 159 Hz B) 427 Hz C) 3:8 Ha D) 530 Rz E 637 HE What is the root mean square velocity of chlorine gas molecules at a temperature of and the molecular mass of Cl 71) 320KNR-8.31x 10 JAmole K, NA 602 x 10 19. 20. what is the finst overtone frequency for a 2 m lengh organ pipe,closed a ons end? The speed of sound in air is 335 ms? A) 20.1 Hz B) 50.4 Hz C) 79.8 Hz D) 125.6 Hz E) 141.12 Hz 21. You want to use a 5.0 ohm, 15 mA galvanometer coil as a 20 V voltmeter. What resistance should be placed in series with the coil? A) 910? B) 750 ? C) 550 ? D) 1550 ? E)1330 ? 22. A 0.20 m long metal wire has a radius of I cm and a resistance of 32 x 10-5 12. What is the resistivity of the metal? E) 1.6 x 10-80-m C) 160 x 10-8Mn D) 5.0 x 10-8Q-m 16.0 x 10-86)-m B) 50.0 x 1040-m A)Explanation / Answer
Q11.
The change in entropy at a constant T = Q/T
where Q = m*LF and T is in Kelvin
so ?S = 2.00kg*334*10^3J/kg/(273)
=2446 J/K
Hence option B.
Q12.
1/9
since difference = (1/q)^2 =(1/3)^2 = 1/9
Pls post other questions separately.
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