An airplane accelerates at 200 m/s2 for 8 seconds from rest. What is the final velocity?

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

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 =