To observe a visual binary, we must measure radial velocities
a. True
b. False
Indicate whether the statement is true or false
False
You might also like to view...
Impulse involves the time that a force acts, whereas work involves the
A) distance that a force acts. B) time and distance that a force acts. C) acceleration that a force produces.
Through a bizarre (and scientifically unexplainable) fluctuation in the spacetime continuum, a copy of a book titled Iguoonos: How We Evolved appears on your desk
As you begin to read, you learn that the book describes the evolution of the people living in the star system described above. In the first chapter, you learn that these people evolved from organisms that lived 5 billion years ago. Which of the following statements should you expect to find as you continue to read this book? A) As a result of traumatic experiences of their evolutionary ancestors, they dislike television. B) Their immediate ancestors were chimpanzees. C) They found that the presence of two stars in their system was critical to their evolution. D) They evolved on a different planet in a different star system and moved to their current location. E) They evolved from primitive wormlike creatures that had 13 legs, 4 eyes, and bald heads, thus explaining why such critters are now considered a spectacular delicacy.
Applying E = hf to photon emission from an atom, the symbol E represents the energy
A) of the emitted photon. B) difference between atomic energy levels producing the photon. C) both of these D) neither of these
The change in entropy of a mass m of a solid substance which has a latent heat of fusion L and melts at a temperature T is
a. LT/m b. mL ln(T) c. mLT d. mL/T e. L/mT