Question: 1. Express cach of the quantities given below in SI units using scientific notation to three significant figures: (i) Height of Empire state building

1. Express cach of the quantities given below in SI units using

1. Express cach of the quantities given below in SI units using scientific notation to three significant figures: (i) Height of Empire state building is 1250 ft (ii) Density of the bacterium e-coli which can be modelled as a cylinder of length 2 um, radius 0.5 um, and mass 1x1012g (iii) Speed of the carth around the sun 2. Distinguish between a vector and scalar quantity, giving one example of cach. 3. A person walks 120 m east then 200 m north. Calculate (i) (ii) Calculate the total distance travelled Sketch a vector diagram for the journey (iii) Calculate the total displacement 4. State Newton's Second and Third Laws of Motion. 5. State the Principte of Conservation of Energy, and illustrate with one example. 6. A 200 g glider and a 400 g glider are pushed towards each other from opposite ends of a frictionless track as shown below in Figure 1. The gliders have Velcro tabs on their fronts so that they will stick together when they collide. The 200 g glider is pushed with an initial speed of 3.0 m's, the collision causes it to stick to the second glider and reverse direction at 0,5 m/s as shown below. Calculate the initial speed of the 400 g glider. Betote After Figure I

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