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)

Ahollow metal sphere has 6 cm and 11 cm inner and outer radii, respectively. the surface charge density on the inside surface is −100nc/m2. the surface charge density on the exterior surface is:

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

Which describes an object in projectile motion? check all that apply. a.gravity acts to pull the object downb. the object moves in a straight path. c.the forward velocity of the object is 0 m/s. d.the object’s inertia carries it forward. e.the path of the object is curved.