Questions Asked in August 2012

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How much heat is required to raise the temperature of a 4.3-kg block of steel by 48 K? (The specific... Asked on August 1, 2012 An ice cube of volume 17.7 cm3 is initially at a temperature of -19.3°C. How much heat is required t... Asked on August 1, 2012 You drop 378 g of solid ice at −35°C into a bucket of water (1,200 g) at 45°C. Eventually, the ice a... Asked on August 1, 2012 To the nearest tenth,what is the circumference of a circle with an area of 49pi? Asked on August 1, 2012 If you combine 34 kg of ice at 0°C with 80 kg of steam at 100°C, what is the final temperature of th... Asked on August 1, 2012 Your swimming pool is square and 4.9 m on a side. It is 3.9 m deep in the morning. If the temperatur... Asked on August 1, 2012 A rectangular aluminum plate has an area of 0.41 m2 at 23°C. If it is heated until its area has incr... Asked on August 1, 2012 If a line L with a slope of -2/5 passes through the points (5,0) and (x,-2) then what is the value o... Asked on August 1, 2012 Use the exact values you enter in previous answer(s) to make later calculation(s). Energy-efficie... Asked on August 1, 2012 The intensity of sunlight at the the top of the Earth's atmosphere is about 1350 W/m2. (The intensit... Asked on August 1, 2012

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