The force f1, 10.0n acts at 10.0cm. what is the magnitude of the torque due to f1 about an axis through point a perpendicular to the page? is it clockwise, or is it counterclockwise? ( point a is at 0 on a meter stick. there is also a point b at 50cm and f2 is 70cm with a force of 15.0n)

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

How many neutrons does plutonium -196 with an atomic number of 78.

Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =