Three resistors of equal value are connected up as shown. Arrange the letters corresponding to the four combinations in increasing order of resistance (least resistance first). Answer: 8) A, B,…
The diagram shows the menstrual (oestrus) cycle for a human female who is not pregnant. During which period, A, B, C or D, will the concentration of oestrogen reach its…
A horse of weight 6000N gallops at a speed of 16 m/s. Taking the acceleration of free fallas 10m/s2, calculate the kinetic energy of the horse. (Give your answer in…
The colors of three indicators are shown. Equal volumes of these three indicators were mixed and the mixture was added to a solution of pH 5.0. What color would be…
The diagram shows a uniform beam pivoted at its centre. The bar weighs 800N, and threeother forces act on it as shown. Distance x can be varied. What value of…
What values of a, b and c are needed to balance the equation?aC3H6 + bO2 6CO2 + cH2O Answer: 3) 2, 6, 9 Carbon3a = 6Hence, a = 2 Hydrogen6a…
The mass of an atom of uranium is 4 10-25 kg.What is the mass, in milligrams, of 8 million atoms of uranium? Answer: 2) E Mass of 8×10⁶ uranium…
The table below shows the proportions of undigested and digested carbohydrates, fats andproteins in three regions of the digestive system. Which row of the table below correctly identifies the types…