The Mars rover Perseverance has mass 1,020 kg. If acceleration due to Mars' gravity is3.72 m/s2
calculate the rover's weight on Mars.
Round your answer to three significant figures.
A 274 N
B 3,790 N
C 1,000 N
D 104 N

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?