PLZZ HELP AKI AM NI EXAM ROOM PLZZ:A whale is located by a marine 100m below the surface of the sea water of density 1030kg/m 3 . If the atmospheric pressure is 105,000 Pascal, determine the total pressure experienced by the whale. (3mks) 3. A boy whose mass is 50kg stand on his two feet. If the total area of contact is 0.02cm 2 and g=10N/kg, calculate; (i) The pressure he exerts when he stood on his two feet. (3mks) (ii) The pressure he exerts when he stood on his one foot. (3mks)

Atank holds 1000 gallons of water, which drains from the bottom of the tank in half an hour. the values in the table show the volume v of water remaining in the tank (in gallons) after t minutes.t(min) 5 10 15 20 25 30v(gal) 694 444 250 111 28 0(a) if p is the point (15, 250) on the graph of v, find the slopes of the secant lines pq when q is the point on the graph with t = 5, 10, 20, 25, and 30.(b) estimate the slope of the tangent line at p by averaging the slopes of two secant lines.(c) use a graph of the function to estimate the slope of the tangent line at p. (this slope represents the rate at which the water is flowing from the tank after 15 minutes.)show all steps.

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two