How much heat is needed to raise the temperature of 200 g of lead (c = 0.11 kcal/kg ? °C) by 10 C°?
A) 33.0 cal
B) 330 cal
C) 2000 cal
D) 20 kcal
B
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The mass of an atom of carbon-12 (Z = 6) is less than the mass of 6 protons and 6 neutrons because of __________
Fill in the blank(s) with correct word
Light of wavelength 575 nm passes through a double-slit and the third order bright fringe is seen at an angle of 6.5° away from the central fringe. What is the separation between the double slits?
A) 5.0 µm B) 10 µm C) 15 µm D) 20 µm E) 25 µm
What is the force on a proton sitting midway between a pair of parallel conducting plates that sit at potentials of -17 V and 55 V, respectively? Their separation distance is 1.5 cm.
a.
b.
c.
d.
e.
In a two-slit experiment, monochromatic coherent light of wavelength 600 nm passes through a pair of slits separated by 2.20 x m. At what angle away from the centerline does the first bright fringe occur?
A) 1.56° B) 2.22° C) 3.12° D) 4.70° E) 6.24°