Below is a picture of a swimmer in a river. looking at the vectors being added is the swimmer going downstream or upstream? downstream, the current is the swimmer go faster relative to the land. upstream, the current is slowing the swimmer down.

The radius of an atom is closest in size to a

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air

Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel