Consider a star with 2 identical planets, both with nearly circular orbits, except the orbit of Planet A is closer to the star than the orbit of Planet B. Which of the following statements is true?
A) Planet A is moving slower than Planet B.
B) Planet A moves with the same speed as Planet B.
C) Planet A is moving faster than Planet B.
C) Planet A is moving faster than Planet B.
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There is no helium flash for a high mass star; for them, it is just one more step toward the heaviest element formation
Indicate whether the statement is true or false
Photoelectric Effect Using Stopping Potential: When a photoelectric surface is illuminated with light of wavelength 437 nm, the stopping potential is measured to be 1.67 V. (1 eV = 1.60 × 10-19 J, e = 1.60 × 10-19 C, melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s)(a) What is the work function of the metal, in eV?(b) What is the maximum speed of the ejected electrons?
What will be an ideal response?
The tendency of a wave to bend as it passes from one transparent medium to another is called:
A) reflection. B) dispersion. C) refraction. D) diffraction. E) interference.
Magnetic flux depends upon
A) the magnetic field. B) the orientation of the area with respect to the field. C) the area involved. D) all of the above E) none of the above