On august 12, 2000, the russian submarine kursk sank to the bottom of the sea, 350 feet below the surface. the density of water is 62.4 lb/ft3. (a) find the water pressure in pounds per square foot at the depth of the kursk. (b) find the force on a 2 foot square metal sheet held horizontally at the depth of the kursk. lb find the force on a 2 foot square metal sheet held vertically at the depth of the kursk. (the bottom of the sheet is at a depth of 350 feet.) lb

Ahowler monkey is the loudest land animal and, under some circumstances, can be heard up to a distance of 4.6 km. assume the acoustic output of a howler to be uniform in all directions and that the threshold of hearing is 1.0 × 10-12 w/m2. what is the acoustic power emitted by the howler

Work = force × a. work b. energy c. distance d. momentum

Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?