BMAT 2009 Section 2 Question 24
The equation gives y in terms of x. y = 5 (ˣ⁄₂ – 3 )² -10 Rearrange the equation to give an expression for x in terms of y Answer: 24)…
The equation gives y in terms of x. y = 5 (ˣ⁄₂ – 3 )² -10 Rearrange the equation to give an expression for x in terms of y Answer: 24)…
A train consists of a powered engine pulling two unpowered carriages. The engine has a mass of 20000kg, and each carriage has a mass of 5000kg. When the engine accelerates…
At room temperature, a reaction is very fast if no bonds are broken while it takes place, and is slow if bonds have to be broken.1 H2 + I2 →…
The diagram shows a section through an alveolus. Gases diffuse through the alveolar andcapillary walls. Which row explains why gaseous exchange occurs in the alveolus? Answer: 21) D We know…
A solid sphere of radius r fits inside a hollow cylinder. The cylinder has the same internal diameter and length as the diameter of the sphere. The volume of a…
An object of mass 5kg falls from rest and hits the ground at a speed of 20m/s. Air resistance isnegligible.From what height has the object fallen? Answer: 19) B From…
A 100 % efficient transformer has 1500 turns on its primary coil. The input to the transformer is 250V ac. The output current is 10A and the output power is…
The oscillation period, t, for a spiral spring (weight w, radius R made from wire length l, radius r with a modulus of rigidity n) with a weight W hanging…
The equation for the preparation of nitrogen monoxide is:a Cu + b HNO3 ------- a Cu (NO3)2 + c H2O + 2NOWhat is the value of b? Answer: 18) D…
The three statements below are about exhaling.1 The ribs swing down and inwards during exhaling.2 The diaphragm muscles contract during exhaling.3 The pressure in the lungs increases during exhaling.Which statements…