A planet's gravity is related to which of the following? Question 14 options:

orbit

weight and density

mass and size

surface area

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Which of the following best describes the shape of earth's orbit? a.ellipticalb.circularc.spirald.figure eight

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?