- What determines the format of the experimental value being studied - what does its accuracy depend on? It depends on the format of all direct measurements involved in calculating the desired value It depends on all numerical data in the formula used for the calculation It depends on the accuracy of all indirect measurements in the experiment an experimental result is always rounded freely,at the will of the experimenter
- QUESTION ONE (30 MARKS) a) Show that the rate of change of angular momentum of a body is equal to torque (4 Marks) b) i. Explain what is mean by a consen ative system (2 Marks) 11. State a necessary and sufficient condition for a system to be conservative (2 Marks) iii. A gul walks 4 kilometers west, then 3 kilometers in a direction 30 degrees east of north. before coming to a halt. Determine the girl's distance from her starting position. (10 Marks) c) i. Define the centre of mass of a system (2 Marks) ii. Locate the centre of mass of a system of 3 particles such clust M_(1)-3kg is located at point A(0,2) pasticle mi-the is located at point Bream and particle M.-kg to located at point (3,0)
- What determines the format of the experimental value being studied - what does its accuracy depend on? It depends on the format of all direct measurements involved in calculating the desired value ) It depends on all numerical data in the formula used for the calculation ) It depends on the accuracy of all indirect measurement in the experiment an experimental result is always rounded freely,at the will of the experimenter
- In the experiment , the motion of a body was investig ated, a s a result of which the average speed and its absolute error were obtained bar (V)=25.6m/s Delta bar (V)=0.1648025ldots m/s Please indicate the correct record of the final result of this experiment. V=(25.6+0.1)m/s V=(25.6pm 0.2)m/s V=(25.60pm 0.1)m/s V=(25.6pm 0.1)m/s
- Mathematical processing of experimental data 01:22 : 2 The formula for calculating the electrical resistance is presented in the form: R=U/I U is the measured voltage in the circuit,I is the magnitude of the electric current. Indicate what type of meas urements each of them belongs to? R is U is square I is direct measurement
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