Two objects are made of the same materialbut have different temperatures. Object 1 has a mass m, and object2 has a mass 2m. If the objects are brought into thermal contact,(a) is the temperature change of object 1 greater than, less than, orequal to the temperature change of object 2? (b) Choose the bestexplanation from among the following:I. The larger object gives up more heat, and therefore its temperature change is greatest.II. The heat given up by one object is taken up by the other object. Since the objects have the same heat capacity, the temperature changes are the same.III. One object loses heat of magnitude Q, the other gains heat ofmagnitude Q. With the same magnitude of heat involved, thesmaller object has the greater temperature change

Q: Two objects are maintained at constant temperatures, one hot and one cold. Two identical bars can be…

A: The differences in the two arrangements are shown below   In first case the slab has a total length…

Q: Two substances, A and B, which are of equal mass but at different temperatures, come into thermal…

A: Two substances, A and B, which are of equal mass but at different temperatures, come into thermal…

Q: 3. Briefly explain why gases have lower thermal conductivity than solids and liquids. For the…

A: Thermal conductivity of matter tells how fast heat energy transfers through the matter. If the…

Q: Two solid spheres, A and B, made of the same material, are at temperatures of 0 °C and 100 °C ,…

A: Let mA and mB be the mass of the solid spheres A and B respectively, TA and TB be the initial…

Q: A spaceship (consider it to be rectangular) is of size 7 x 4 x 4 (in meters). Its interior is…

A:

Q: A copper teakettle with a circular bottom 30.0 cm in diameter has a uniform thickness of 2.5 mm. It…

A: diameter of bottom= 30 cm thickness=2.5 mm Temperature of burner= 150 C

Q: An insulated calorimeter of mass 120g and of specific heat capacity of 0.22 cal/(g.C), contains 150g…

A:

Q: A 3.5 kg block of copper at a temperature of 80◦C is dropped in a bucket containing a mixture of ice…

A:

Q: long with a negligible thickness, and assume that the chip radiates heat evenly from both the top…

A: W=1.5cmL=2.5 cmemissivity =0.6E=0.41w

Q: A cylindrical bar of length L and radius R (L>>R) whose side walls are thermally insulated supports…

A:

Q: A window measures 1.5 m by 0.2 m and the single pane of glass is 0.3 cm thick.  The outside…

A:

Q: The rate of heat conduction out of a window on a winter day is rapid enough to chill the air next to…

A: Area, A =  3 m2 thickness, d = 0.635 cm  T' = 5 C T = - 10 C K = 0.8 W/ m K

Q: You need to precisely measure the dimensions of a large wood panel for a construction project. Your…

A:

Q: 50.0 g ice cube, intially at 0° C, is dropped into a Styrofoam cup containing 350 g of water,…

A:

Q: When a driver brakes an automobile, the friction between the brake drums and the brake shoes…

A: Given  Mass of car M = 1550 kg  m = 32 kg . Velocity v = 28 m/s  Specific heat of iron  c = 448 J/kg…

Q: Seals may cool themselves by using thermal windows, patches on their bodies with much higher than…

A: Given: Area of the thermal window = 0.030 m2 Temperature T = 30 °C = 303 K Temperature of the…

Q: A wooden sphere of diameter 5 cm is initially at a uniform temperature of 21 °C. Its…

A: The objective of the question is to calculate the temperature at a certain depth in a wooden sphere,…

Q: Calculate the rate of heat conduction out of the human body, assuming that the core internal…

A:

Q: A 2m² large and 1 cm thick door made of steel insulates a room against its surrounding. The…

A: Solution:-Given thatArea of door (A)=2 m2Thickness (L1)=1 cm=0.01 mInside temperature…

Q: When a driver brakes an automobile, the friction between the brake drums and the brake shoes…

A: From conservation of work energy,

Q: The specific heat (capacity) of a particular type of pasta is 1.8J/g· Celcius. Suppose you toss 340…

A: Given Specific heat of pasta cp = 1.8 J/g°C Mass of pasta mp            = 340 g Temperature Tp…

Q: A-2.16. The heat capacity of air is much lower than the heat capacity of water and a relatively…

A:

Q: Two solid spheres A and B have same emissivity. The radiue of A is four times the radius of B and…

A:

Q: dt Governed by Newton's Law of Cooling [= k(Te − T) where T is the temperature of the object, Te is…

A: We are given the initial and final temperatures and time taken to reach this final temperature. We…

Q: A wooden sphere of diameter 5 cm is initially at a uniform temperature of 21 °C. Its…

A: The objective of the question is to calculate the temperature beneath the surface of the sphere and…

Q: The specific heat of alcohol is about halfthat of water. Suppose you have 0.5 kg of alcohol at the…

A: Given data The specific heat of alcohol is CA = 0.5 CW. The mass of the alcohol is mA = 0.5 kg. The…

Q: A house walls that are 23 cm thick and have an average thermal conductivity two times that of cork.…

A:

Q: Mars’s Perseverance Rover left the NASA’s space station with an ambient temperature of 54°F. During…

A: (a) Let C, F, R, and K denotes Celsius, Fahrenheit, Rankine, and Kelvin. The relation between…

Q: A house walls that are 16 cm thick and have an average thermal conductivity two times that o surface…

A: GivenThickness of house walls, ∆x=16 cm=0.16 mAverage Thermal conductivity, kavg=2×kcSurface area of…

Q: A heavily insulated copper rod or diameter 2 cm and length 25 cm is used to pipe heat between two…

A: The rate of heat transfer is given by  H = K A (T ' - T)L where, K is the coefficient of thermal…

Q: heat transfer rate

A: Given: Width of plate is W=2.37 m Height of plate is H=1.17 m Heat transfer rate is Q·=123 W Initial…

Q: a) Two materials, aluminum (intial length, 6 m) and ordinary glass (initial length, 5 m) are…

A: The coefficient of expansion of aluminum is αAl = 23*10-6 oC The coefficient of expansion of glass…

Q: (a) A 1.8 cm thick wooden floor covers a 4.0 m × 5.5 m room. The subfloor is at a temperature of…

A: (a) Given : Thickness of a wooden floor (L) = 1.8 cm = 0.018 m Area of room = 4.0 × 5.5 = 22 m2…

Q: The bottom of an aluminum pot is 0.01 m thick and 0.1 m2 in cross-section. The lower surface is kept…

A:

Q: You are expecting to serve 32 cups of soft drinks toyour guests tonight. Each cup will hold 285 g of…

A: To find: To find the mass of the ice using the given values

Q: Give the illustration/diagram of the given problem. A glass contains 0.25 kg of Loca-Cola (mostly…

A: Given, Mass=0.25kg Initial temperature(water)=25° C Initial temperature (ice)=-20° C  final…

Human Metabolism

Being described as the most complicated machine ever encountered by humans, the human body and the cell metabolism is nothing less than a wonder. Metabolism is the set of life-sustaining chemical reactions within organisms.