Answer the following statement(s) true (T) or false (F)

1. Equation implies that a sinusoidal wave’s phase speed depends on its wavelength




1. FALSE

Physics & Space Science

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Kinetic energy is conserved in

a. an inelastic collision. b. an elastic collision. c. any collision where two objects rebound off each other. d. none of the above.

Physics & Space Science

Water able to be contained in the subsurface depends on

A) permeability. B) porosity. C) chemical composition. D) none of these

Physics & Space Science

A solar-mass star will evolve off the main sequence when

A) it loses all its neutrinos, so fusion must cease. B) it completely runs out of hydrogen. C) it builds up a core of inert helium. D) it explodes as a violent nova. E) it expels a planetary nebula to cool off and release radiation.

Physics & Space Science

A piece of wire 15 m long is cooled from 40°C to –9°C and the change in length is –12.7 mm.

(a) What is the linear coefficient of thermal expansion for this material? (b) Identify the material based upon the measured coefficient of thermal expansion.

Physics & Space Science