Calendar: 1861-1862 Page 511

512 APPLIED SCIENCES placed upon it at intervals of foot and is supported at two points inches from each end Find the pressure on the supports ladder of 60 lbs weight and 13 feet long is place against smooth vertical wall the lower end being feet from the wall Find the pressure on the wall uniform rod 50 inches long and lbs weight is sus- pended from nail by two strings one 30 inches long and the other 40 inches long weight of 17 lbs is hung at the end of the rod next the shorter string Find the point of the rod which will be vertically under the point of suspension Find also the tension of each string How is velocity measured when uniform How many feet per second is 45 miles an hour body is projected upwards at 72 feet per second find its height and velocity after conds and find when it will reach height of 45 feet supposing 32 body weighing lbs moving north at 18 feet per second meets another of lbs moving south at 10 feet per second Find the velocities of and Β after impact supposing them 1st perfectly inelastic 2d perfectly elastic 3d elasticity If pendulum 39 inches long vibrates in second what will be the time of vibration of pendulum 39 yards long When solid is immersed in fluid what is its apparent weight The weight of certain body in sulphuric acid of specific gravity 18 is 138 grains and in spirits of specific gravity 0-8 its apparent weight is 153 grains find its true weight and its specific gravity 10 uniform stick 32 inches long lb weight and specific gravity 05 has brass knob at one end lb weight specific gravity How much of the stick will float above water