Sounds coming from moving objects, such as the siren of an emergency vehicle, appear to change pitch as the object moves toward or away from you. Compare the wavelength of a siren based on its motion toward or away from you.

Put in order from shortest wavelength to longest wavelength

From these following (order these from shortest to longest wavelength):
away from you at 36 mph
away from you at 31 mph
neither toward or away from you
toward you at 47 mph
toward you at 36 mph
toward you at 3 mph

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.

Which best describes the difference between internal and thermal energy?