Asound wave that has a wavelength of 2 m in room-temperature air has a frequency of about
a. 170 hz.
b. 1360 hz.
c. 2040 hz.
d. none of the above

What is the measurement of how fast an object moves relative to a reference point?

Asquare isothermal chip is of width w=5 mm on a side and is mounted in a substrate such that its side and back surfaces are well insulated; the front surface is exposed to the flow of a coolant at tinf=15 °c. from reliability considerations, the chip temperature must not exceed t=85 °c. if the coolant is air and the corresponding convection coefficient is h=200 w/m2 x k, what is the maximum allowable "power" of the chip? if the coolant is a liquid for which h=3000 w/m2 x k, what is the maximum allowable power of the chip?

How are heat and temperature of a substance related to each other answer it with explanation , in advance