Question C1 Figure 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 trom the hinge at the wall. The mass of the sign is 14 kg Hing (a) Draw a free body diagram for the boom. Piease resolve vector (f neededy and reftlect it in the free body diagram (b) Calculate the tension in the cable, and the horlzontal and vertical components of the force exerted by the hinge on the boom Question C2 Initially 51 g of ice at o 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 coetticients/constants) Question C3 A metry-go-around with mass 293 kg and diameter 4.15 mis rotating treely with an angutar velocity of 0.785 rad/s (a) Calculate the moment of inertia of the merry-go-around Assume that it is a solid cylinder (D) Four peopie standing on the ground, cacn of mass 54.6 kg subderuy step onto the edge of the mery-go-around what is the angular velocity of the merry-go-around now? (C) Caiculate the rotational kinetic energy of the meny-g0-around before and after the four people stepping onto t

Question C1 Figure 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 trom the hinge at the wall. The mass of the sign is 14 kg Hing (a) Draw a free body diagram for the boom. Piease resolve vector (f neededy and reftlect it in the free body diagram (b) Calculate the tension in the cable, and the horlzontal and vertical components of the force exerted by the hinge on the boom Question C2 Initially 51 g of ice at o 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 coetticients/constants) Question C3 A metry-go-around with mass 293 kg and diameter 4.15 mis rotating treely with an angutar velocity of 0.785 rad/s (a) Calculate the moment of inertia of the merry-go-around Assume that it is a solid cylinder (D) Four peopie standing on the ground, cacn of mass 54.6 kg subderuy step onto the edge of the mery-go-around what is the angular velocity of the merry-go-around now? (C) Caiculate the rotational kinetic energy of the meny-g0-around before and after the four people stepping onto t