A piece of iron block moves across a rough horizontal surface before coming to rest. The mass of the block is 3.3 kg, and its initial speed is 4.0 m/s. How much does the block's temperature increase, if it absorbs 78% of its initial kinetic energy as internal energy? The specific heat of iron is 452 J/(kg- °C). O 0.0108 °C 0.0318 °C O 0.0180 °C O 0.0138 °C

(a) How much heat transfer is required to raise the temperature of a 0.750kg aluminum pot containing 2.50 kg of water from 30.0C to the boiling point and then boil away 0.750 kg of water? (b) How long does this take if the rate of heat transfer is 500 W 1watt=ljoule/second(lW=lJ/s) ?

A calorimeter made of copper (c=0.0923 cal/g-C°) of mass 300 g contains 450 grams of water. The container is initially at room temperature, 20°C. A 1 kg block of metal is heated to 100°C and placed in the water in the calorimeter. The final temperature of the system is 40°C. What is the specific heat of the metal? O A. 0.159 kcal/kg-C° O B. 0.915 kcal/kg-C° OC.0.519 kcal/kg-C° O D.0.591 kcal/kg-C

A 1.0kg lead (specific heat = 130 J/kg.(Cº)-1 at 80.0°C is placed in 2.0kg of water at 20.0°C. The final temperature of the lead bar is O a. 40°C O b. 28°C О с. 35°с O d. 22°C Ое. 50°с

How much thermal energy (in J) is required to boil 2.45 kg of water at 100.0°C into steam at 135.0°C? The latent heat of vaporization of water is 2.26 ✕ 106 J/kg and the specific heat of steam is  2010  J kg · °C . HINT  J

A 450 g metal cube which is originally at 110 degree(s) C oven is dropped into 0.003 m3 of water in a at 70 degrees Celcuis in an insulated cup. After both water and cube reached thermal equilibrium, the final temp is 78 degrees Celsius. What is the specific heat capacity of the uknown metal cube? cWater= 4200 j/kgK cCube=? A. 2800 j/kgk B. 7000 j/kgk C. 6500 j/kgk D. 5100 j/kgk E. None

A. 1 kg of ice at 0°C is mixed with 3 kg of steam at 100°C in a thermally isolated container and allowed to reach thermal equilibrium. What is the final temperature of the resulting mixture? The latent heat of fusion is 80 cal/g and the latent heat of vaporization is 540 cal/g. The specific heat of water is 1.00 cal/g · K. The specific heat of both ice and steam is 0.5 cal/g · K° B. A skater spins with constant angular acceleration from rest to a final angular speed of 10.0 rev/s in 6.00 seconds. How many revolutions did she make in the first 6.00 seconds? C. A particle exhibiting simple harmonic motion has a velocity v(t) = 200 sin(50t) where v is in m/s. Its maximum velocity in m/s is _______.  D. A container has 0.50 kg of ice at 0.00°C. A tube connected from a boiler et 0.100 kg of steam at 100.0°C inside the container. What is the temperature of the system when it has reached equilibrium? Assume that no heat is absorbed by the container.

A 100g cube of ice at 0°C is dropped into 1 kg of water that was originally at 80°C. What is the final temperature of the water after the ice melts and the isolated system reaches thermal equilibrium? The latent heat of fusion of water is 3.33 x 10$ J/kg and the specific heat of water is 4182 J/(K kg). O 72.04°C 58.48°C O 40°C 65.49°C

A 0.150-kg sample of a metal alloy is heated at 540 Celsius an then plunged into a 0.400-kg of water at 10.0 Celsius, which is contained in a 0.200-kg aluminum calorimeter cup. The final temperature of the system is 30.5 Celsius. What is the specific heat of the metal alloy in J/Kg.Celsius? O 497 O 74.60 50.00 O 3316 994

J A 0.27kg block of iron (Ciron=448.00– .) initially at temperature 13.00°C is dropped into an insulated container filled with 8.72kg of water (Cwater=4186.00- ) at 29.00°C. kg°C 1. Determine the final temperature of the system once they are at thermal equilibrium. °C J kg°C 2. Determine the magnitude of thermal energy Q transferred between the two substances. J