Both the CNO cycle and the proton-proton fusion chain convert hydrogen to helium using catalysts
a. True
b. False
Indicate whether the statement is true or false
False
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Two mirrors are at right angles to one another. A light ray is incident on the first at an angle of 30°with respect to the normal to the surface. What is the angle of reflection from the second surface? ?
A. ?30° B. ?60° C. ?45° D. ?53° E. ?75°
A conducting bar moves as shown near a long wire carrying a constant 80-A current. If a = 1.0 mm, b = 20 mm, and v = 5.0 m/s, what is the potential difference, Va?Vb?
A. ?0.24 mV B. +0.24 mV C. ?0.19 mV D. +0.19 mV E. ?0.76 mV
Modern aircraft weather radars operate in the _____________ portion of the EM spectrum
Fill in the blank(s) with correct word
How does the largest asteroid, Ceres, compare in size to other solar system worlds?
A) It is larger than the planet Mars. B) It is larger than our Moon but smaller than Mercury. C) It is larger than Mercury but smaller than Mars. D) It is about a quarter the diameter of our Moon. E) It is about the size of the two moons of Mars.