A complex tone can be produced by combining two or more __________
Fill in the blank(s) with correct word
pure tones
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Each of the following diagrams shows a planet orbiting a star. Each diagram is labeled with the planet's mass (in Earth masses) and its average orbital distance (in AU). Assume that all four stars are identical. Use Kepler’s third law to rank the planets from left to right based on their orbital periods, from longest to shortest. If you think that two (or more) of the diagrams should be ranked as equal drag one on top of the other(s) to show this equality. (Distances are to scale, but planet and star sizes are not.)
Stars form from a collapsing cloud that fragments into smaller and smaller pieces. This process takes about:
A) 10,000 years. B) 25,000 years. C) 100,000 years. D) a few million years. E) 100 million years.
A 35-g block of ice at -14°C is dropped into a calorimeter (of negligible heat capacity) containing 400 g of water at 0°C
When the system reaches equilibrium, how much ice is left in the calorimeter? The specific heat of ice is 2090 J/kg ? K, that of water is 4186 J/kg ? K, and the latent heat of fusion of water is 33.5 × 104 J/kg. A) 32 g B) 33 g C) 35 g D) 38 g E) 41 g
The energy of an ultraviolet photon is more than the energy of an infrared photon
Indicate whether the statement is true or false