Process of Science: Explain how technology advances help address astronomical questions
What will be an ideal response?
New technologies allow us to study objects in the Universe in more detail (e.g., adaptive optics), over more wavelengths (e.g., space telescopes), and more efficiently than before (e.g., with larger cameras and faster computers). These advances allow us to test scientific theories by having a wider range of objects to compare and by learning about the physical processes in each object in more detail.
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A jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20° above the horizontal. How long is the jumper in the air before returning to the Earth?
A) 0.21 s B) 0.42 s C) 0.84 s D) 1.3 s E) 1.6 s
What star is the most likely to have made the atoms of gold in your jewelry or your electronics?
A) a high-mass star B) a low-mass star C) the Sun D) a white dwarf
Energy in Nuclear Reactions: If a ?- particle at rest decays into a neutron and a ?-, what is the total kinetic energy of the decay products? The masses of ?-, neutron, and ?- are 1197 MeV/c2, 940 MeV/c2, and 140 MeV/c2, respectively.
Fill in the blank(s) with the appropriate word(s).
Your friend says that any radio wave travels appreciably faster than any sound wave
A) agree with your friend unconditionally B) agree with your friend for most common cases C) disagree with your friend D) find a new friend