Dale skis down a hill with a slope of 30°. Given that there is friction acting between his skis and the snow as he moves, which of the following is the
correct free-body diagram for Dale?
Normal
force
Normal
force
Normal
force
Normal
force
Friction
Friction
Friction
Friction
Weight
Weight
Weight
Weight
А
B
С
D
A. A
O
B. B.
C. C
O
u
D. D
l

True or false graphs must include scales that increase by the same amount

If the new moon happens on january 15th, what shape will it be on february 6th?

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?