The peaks of the sound wave are referred to as _____, while the valleys are referred to as _____.
compression; rarefaction
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In order for an atom to decay to an element that is one greater in atomic number, it can emit
A) one alpha particle and 3 beta particles. B) one positron and 2 beta particles. C) one beta particle. D) all of the above E) none of the above
The white dwarf that remains when our Sun dies will be mostly made of ________
A) hydrogen B) neutrons C) helium D) carbon
The position of an air-track cart that is oscillating on a spring is given by the equation
x = (12.4 cm) cos[(6.35 s-1)t]. At what value of t after t = 0.00 s is the cart first located at x = 8.47 cm? A) 4.34 s B) 0.108 s C) 0.129 s D) 7.39 s E) 7.75 s
Rain or snow that falls on the continents is Earth's only
A) supply of water. B) supply of fresh water. C) hydrologic cycle. D) source of evaporation and condensation.