Mnashe

a sample of ethanol was prepared by reacting 9.2cubic centimetres of ethanol(density 0.8grams/cubic centimetre)with an acidified solution containing 11grams of sodium dichromate(Na2 Cr2 O7) the reaction is represented by the following equation: C2 H5 OH+K...

a boy throws a stone vertically up to a man standing at a height of 2.0m above the boy. If the stone is thrown up with a velocity of 7.0metres per second what is the velocity of the stone at the instant when it is caught by the man A. 3.0m/s B. 6.2m/s C....

a stone rolls off the edge of a vertical cliff. neglecting air resistance, which of the following describes its subsequent motion? Vertically Horizontally A Increasing velocity Decreasing velocity B Constant velocity Constant acceleration C Constant accel...