How many sig figs is 20 0 e24
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When the gas reaches a temperature of 0 °C the volume is 2.20 × 10–3m3. (a) Draw a graph on the axes below to show how the volume of the gas varies withtemperature in °C. ... (12) × 10−7 W m−2 correct to 2 sig figs ... = 2.4 × 10−5 m3 2 sig fig ...
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(i) The cross–sectional area of the copper in the cable is 2.28 × 10–7 m2. The resistance of the copper in a 1.0 m length of the cable is 0.075 Ω. Calculate the resistivity of the copper, stating an appropriate unit.
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20.0 4.0. 27.0 6.0. 34.0 (i) The power sockets in a home are wired to the mains electricity supply using cables containing 2.5 mm2 copper wires. ... an answer with more than 2 sig figs …
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The reaction time of the driver is 0.67 seconds, it then takes another 5 . seconds for the brakes to bring the car to rest. (a) Using the data above, draw a speed-time graph to show the speed of the car from the instant the truck was seen by the driver until the car stopped. ... it must be tested.A car of mass 1500 kg is driven at 30 m/s to hit ...
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(ii) Calculate the current in the 4.0 Ω resistor if the p.d. across the diode, when in forward bias, is 0.65 V expressing your answer to an appropriate number of significant figures. ... = 1.39 × 10–18 – 6.20 × 10–19= 7.72 × 1019 J ... I = (12 – 0.65 (1))/4 = 2.8 A (1) sig figs ...
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