1998 - WAEC Physics Past Questions and Answers - page 1
which of the following pairs of physical quantities comprises vectors?
A piece of stone attached to one end pf string is whirled round in a horizontal circle. When the string is suddenly cut, the stone will
The term torque means
A rectangular block of wood floats in water with two-thirds of its volume immersed. When placed in another liquid, it floats with half of its volume immersed. Calculate the relative density of the liquid
As the end Q of the plank is raised, the component of W, normal to plank, will
If (\theta) is equal to (\alpha) at the time the box is just about to slide down the plank, the coefficient of static friction between the plank and box is
I the box is pulled from P to Q, which of the following expresses the velocity ratio of the inclined plane?
a pilot records the atmospheric pressure outside his plane as 63cm of Hg while a ground observer records a reading of 75cm of Hg with his barometer. Assuming that the density of air is constant, calculate the height of the plane above the ground. (take the relative densities of air and mecury as 0.00136 and 13.6 respectively)
An object is protected with a velocity of 100m-1 at an angle of 60o to the vertical. Calculate the time taken by the object to reach the highest point (Take g as 10ms-2
The earth is not a perfect sphere because its equatorial axis is longer than the polar axis. where on the earth's surface would an object have its greatest weight?