If the human body temperature is 33 degreec, what is the wavelength of the emitted thermal radiation ? plot the spectral energy density emitted by the human body. do humans have significant emission in the visible region of the spectrum ? obs.: i() = (8pihc/^5)(l/(e^hc/kt - with k = boltzmann's cte; [1()] = j/m^

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.