Which of the following planets can be in opposition?
a. Mercury
b. Venus
c. Earth
d. Mars
d
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Two vectors A and B have components (0, 1, 2 ) and (-1, 3, 1), respectively
(a) Determine the components of the sum of these two vectors. (b) Determine the magnitude of the sum of these two vectors.
Two tanks of gas, one of hydrogen, H2, and one of helium, He, contain equal masses of gas. The gram-molecular mass of He is twice that of H2 . Both tanks of gas are at the same temperature, 293 K. Which statement(s) below is(are) correct when we ignore vibrational motion?
a. The total internal energy of the hydrogen is the same as that of the helium. b. The total internal energy of the hydrogen is 167 times that of the helium. c. The total internal energy of the helium is 1.67 times that of the hydrogen. d. The total internal energy of the hydrogen is 3.33 times that of the helium. e. The total internal energy of the helium is 3.33 times that of the hydrogen.
A proton with a kinetic energy of 0.20 keV follows a circular path in a region where the magnetic field is uniform and has a magnitude of 60 mT. What is the radius of this path?
a. 4.1 cm b. 2.9 cm c. 3.4 cm d. 5.1 cm e. 2.4 cm
If the scattering angle of the light in Compton's scattering experiment is 90°, what is the change in the wavelength of the light?
(melectron = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s) A) 1.22 × 10-12 m B) 2.42 × 10-12 m C) 3.65 × 10-12 m D) 4.85 × 10-12 m