A light ray from a ray box is incident on a rectangular glass prism and the path of the incident ray and emergent ray was traced to obtain the diagram below. The refractive index of air and the refractive index of a glass are 1,00 and 1,52 respectively. 6.1 State Snell’s law in words. (2) … Read more
A satellite of mass 1 000 kg is orbiting the earth at a distance of 200 km from the surface of the earth as shown on the diagram below. 5.1 State Newton’s Law of Universal Gravitation in words. (2) 5.2 Calculate the magnitude of the force that the earth exerts on the satellite tokeep it … Read more
Two blocks of masses 1,5 kg and 3,2 kg are connected by a light inextensible string. A 24 N force is applied on a system of blocks to move them up an inclined surface which is 25 o to the horizontal at a CONSTANT VELOCITY as shown on the diagram below. The 1,5 kg box … Read more
A 250 N force is applied on a block of mass 25 kg. The 25 kg block is connected to a 10 kg block by a light inextensible string through a frictionless pulley as shown on the diagram below. The 250 N force acts at an angle of 25 o to the horizontal so that … Read more
5.1 The body mass (in kg) for each member of the under 17 rugby team from Fundakahle High School is recorded in the table below Refer to the information and answer the questions that follow. 5.1.1 Write down the mode for the U-17 rugby team (2) 5.1.2 Define the term mean. (2) 5.1.3 Calculate the … Read more
4.1 The distance between Kuils River and Beaufort West is 15 cm on a map. Determine the real distance (in km) between the two towns if the scale on the map is 1 : 3 750 000. (3) 4.2 A tin of Nestlѐ coffee has a diameter of 100 mm and a height of 120 … Read more
A pulley system is used to keep a crate of mass M kg stationary as shown on the diagram below. 2.1 Define the term resultant vector. (2) 2.2 Calculate the: 2.2.1 Vertical and horizontal components of T 2 (4) 2.2.2 Magnitude of T 1 (2) 2.2.3 Mass M of the crate (3) [11]
3.1 Lerato invites her relatives to spend a weekend at her home. She decides to make pancakes for breakfast. The following recipe serves 10 persons. Lerato would like to serve 15 persons. Use the information in the recipe to answer the questions. 3.1.1 Write down, in the simplest form, the number of people the recipe … Read more