Someone of weight GOON Runs up a night of stairs. There are 25 de deep.
(a) The total vertical distance in metres through which he rises
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(b) The work he does in running up the stairs
(c) What is the energy transfer in this situation>
12

Which changes of state do the labels represent? a: b: c:

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.