C1 C2 and C4 needed Question C2Initially 51 g of ice at 0.0°C is in an aluminum calorimeter can of mass 13 g, also at 0.0°C. Then 71 g of water at 90°C is poured into the can.What is the final temperature? (Refer to Lecture 9 for coefficients / constants)Question C3A mery-go-around with mass 293 kg and diameter 4.15 m is rotating freely with an angular velocity of 0.785 rad/s.(a) Calculate the moment of inertia of the merry-go-around. Assume that it is a solid cylinder.(b) Four people standing on the ground, each of mass 54.6 kg, suddenly step onto the edge of the merry-go-around. What is the angularvelocity of the merry-go-around now?(C) Calculate the rotational kinetic energy of the merry-go-around betore and after the four people stepping onto it.Question C4An object is 5.5 cm high and 32 cm from a converging lens. Its image is 87 cm from the lens and on the same side as the object.(a) What is the focal length of the lens?(b) What is the power of the lens?(C) What is the height of the image?(d) Give TWO characteristics of the image formed. Question C1Figure below shows a shop sign supported by a uniform horizontal boom of length 3.4 m and mass 12 kg. A cable, inclined at an angle of 30°with the boom, is attached at a distance of 2.7 m from the hinge at the wall. The mass of the sign is 14 kg.HingeJOE'S(a) Draw a free body diagram for the boom. Please resolve vector (if needed) and reflect it in the free body diagram.(b) Calculate the tension in the cable, and the horizontal and vertical components of the force exerted by the hinge on the boom.Question C2Initially 51 g of ice at 0.0°C is in an aluminum calorimeter can of mass 13 g, also at 0.0°C. Then 71 g of water at 90°C is poured into the can.What is the final temperature? (Refer to Lecture 9 for coefficients / constants)Question C3A merry-go-around with mass 293 kg and diameter 4.15 m is rotating treely with an angular velocity of 0.785 rads.(a) Calculate the moment of inertia of the merry-go-around. Assume that it is a solid cylinder.(b) Four people standing on the ground, each of mass 54.6 kg, suddenly step onto the edge of the merry-go-around. What is the angularvelocity of the merry-go-around now?(C) Calculate the rotational kinetic energy of the merry-go-around before and after the four people stepping onto it.

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Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: The Kinetic Theory Of Gases

Section: Chapter Questions

Problem 21.8OQ

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Question C2 Initially 51 g of ice at 0.0°C is in an aluminum calorimeter can of mass 13 g, also at 0.0°C. Then 71 g of water at 90°C is poured into the can. What is the final temperature? (Refer to Lecture 9 for coefficients / constants)