Calendar: 1888-1889 Page 790

7 CLOTHWORKERS' AND SAMBROOKE EXHIBITIONS of 30 feet per second and horizontal velocity of 40 feet per second simultaneously imparted to it Find the time of flight and the distance from the starting-point to the poin where the ball strikes the ground mass of ounces hanging by string over the of smooth table draws mass from rest along the hoii- zontal table over distance of feet in seconds find th mass upon the table What is meant by the energy of body Two ivory balls of and grammes strike one another when moving in the same direction with velocities of 10 and feet per second respectively find their velocities afte impact the modulus of elasticity for ivory being and find the loss of energy Shew how to lind experimentally or otherwise the position of the centre of gravity of triangular plate triangle is cut off from parallelogram of which diagonals are and inches in length by straight joining the middle points of two adjacent sides find centre of gravity of the remainder Shew how to determine the resultant of two parallel forces acting in contrary directions on lever What happens when the two forces are equal T11 the first system of pulleys where the strings are parallel find the relation between the power and the weight when there are three moveable pulleys of equal weight What is the gain or loss in the mechanical advantage arising from the weights of the pulleys When person tries to pull out two-handled drawer by pulling one of its handles in direction perpendicular to the front find the conditions under which the draw will stick fast and shew that they are independent of the force employed body describes an arc of vertical circle shew that the change in the velocity between any two points is the same as if the body fell vertically through the same height pendulum which should beat seconds is found to lose 10 seconds day determine how much its length should be increased or diminished