Two identical rectangular strips, one of copper and other of steel , are riveted to form a bimetallic strip. What will happen on heating?

Q: What thickness of (a) concrete, (b) brick wood have the same insulating ability as 10 cm of glass…

A: Since the rate of heat transfer is proportional to the temperature difference and the area and…

Q: Three cubes are made from the same material. As the drawing indicates, they have different sizes and…

A:

Q: A thick aluminum block initially at 20°C is subjected to constant heat flux of 4000 W/m2 by an…

A:

Q: A 0.61 kg sphere at 368 K is dropped into a thermally insulated container with 1 kg of water at 300…

A: Given : Mass of Sphere (M) = 0.61 kg Initial Temperature of Sphere = 368 K Mass of Water (m) = 1 kg…

Q: A copper rod is 0.705 m long with a rectangular cross section of dimensions 0.0555 m by 0.0755 m.…

A:

Q: **56. A steel rod (p = 7860 kg/m³) has a length of 2.0 m. It is bolted at both ends between immobile…

A: When a steel rod looses energy as heat it means there is a thermal expansion taking place on the rod…

Q: A quantity of water is heated from 25.0 Degrees Celsius to 36.4 Degrees Celsius by absorbing 325…

A: Given data: Final temperature of water is, T2=36.4∘C. Initial temperature of water is, T1=25.0∘C.…

Q: Which of the of the following temperature is the hottest?  A. 100 degrees celsius  B. All would…

A:

Q: p (Pa) 3.0 x 105 2.0 × 105- 1.0 × 105 b a с 이 0.02 0.04 0.06 -V (cm³)

A: From first law of thermodynamics, where Q is the amount of heat supplied to a system,  is the change…

Q: A copper telephone wire has essentially  no sag between poles 35.0 m apart on a winter day when the…

A:

Q: An unclothed person whose body has a surface area of 1.40 m with an 7.An unclothed person whose body…

A: We have GivenArea of body (a)=1.4 m2Emissivity (ε)= 0.85Skin Temperature (T1)=37°C=37+273=310 KRoom…

Q: Jake grabs a can of soda from the closet and pours it over ice in a cup. Determine the amount of…

A: We have an ice in a cup of mass m=40 g=0.04 kg which melts due to some soda that is poured into the…

Q: The sides and bottom of the solar collector are usually insulated to Select one: O absorb heat O…

A: Solar collector has a primary function to collect the solar energy ( radiations from sun) , which is…

Q: A concrete slab is 12.0 cm thick and has an area of 5.00 m2. Electric heating coils are installed…

A: It is given that,

Q: Which of the following is NOT an intensive property?   a. specific volume b. heat capacity c.…

A: An intensive property is one that does not depend on the mass of the substance or system.  Solution:…

Q: Two rooms, each a cube 4.0m per side share a 14 Cm thick brick wall. Because of a number of 100 W…

A: Side , s = 4 m Thickness , d = 14 cm = 0.14 m Power of bulbs , P = 100 W Temperature of hot room ,…

Q: Metal 1 has twice the thermal conductivity of Metal 2, which of the following is true?

A: Thermal resistivity = 1/ thermal conductivity

Q: (A) Loose electrons move quickly away from hot locations, making it impossible for energy to move…

A: Introduction : Loose electrons are the outer electrons which are held loosely in the atom.

Q: One end of an insulated metal rod is maintained at 100 degrees C, while the other end is maintained…

A: The mass of ice is, m=8.5 g=0.0085 kg The time taken in heat conduction is, t=10 min=10×60 s=600 s…

Q: If the temperature of the metal surface is (B4) K, then calculate its value in Fahrenheit О…

A:

Q: A block of wood and a block of metal are both put into a freezer overnight. When you take them out,…

A:

Q: As a copper wire is heated, its length increases by 0.100%. What is the change of the temperature of…

A:

Q: Two rods each having a length of 20 cm and a radius of 5 cm are coonected as shown. How much heat is…

A:

Q: A steam pipe is covered with 1.50-cm-thick insulating material of thermal conductivity 0.200 cal/cm…

A: Rate of energy transfer is,

Q: You recently bought an aluminum (C = 0.9 J/g-K) kettle with a mass of 2 kg. You used the kettle to…

A:

Q: The sun heats Earth by .....chosse one correct answer

A: The transfer of heat from one place to another can be achieved in three ways, Conduction Convection…

Q: How much water remains unfrozen after 64.3 kJ is transferred as heat from 490 g of liquid water…

A:

Q: What is the Latent Heat of Fusion of a substance if 1200 J melts 40 grams of it? (A) 20 J/g B) 30…

A:

Q: Four different materials initially at the same temperature were placed onto a hot stove. The…

A: Introduction: Among the various properties of matter, thermal conductivity is the property that…

Q: Substance A has a higher specific heat than substance B. If all other factors are equal, which…

A:

Q: How long does it take to raise the temperature of a 0.750-kg aluminum pot containing 2.50 kg ot…

A:

Q: A copper wire with a length of 10.0 cm has an initial temperature of 25 Celsius, at what temperature…

A: Initial length,  Initial temperature,  Change in length,  Coefficient of expansion,

Q: As a copper wire is heated, its length increases by 0.1%. What is the change of the temperature of…

A: Change in length: ∆l = 0.1% of original length = 0.1100L = 0.001 L Coefficient of thermal expansion…

Q: A 0.150-kg sample of a metal alloy is heated at 540 Celsius an then plunged into a 0.400-kg of water…

A: Please see the answer in step 2

Q: a resting person has skin temperature 35C if his room temperature is 30C and the body surface area…

A:

Q: A 4 cm diameter and 6 cm long cylindrical rod at 1000 K emits a 385 kJ of radiation in 20 minutes.…

A:

Q: Concrete squares in the sidewalk are separated by padding that prevents the concrete from buckling…

A: Area of the concrete square,  Expansion in the area of the concrete square,  Coefficient of thermal…

Q: A student is trying to decide what to wear. His bedroom is at 20°C. His skin temperature is 35°C.…

A: We have to convert temperature in to k K=°C+273

Q: After a short walk a student has lost 230 kcal of heat thanks to the evaporation of 418g of water…

A:

Q: A copper wire of length 12m is clamped on both ends and is at a temperature of 23 ºC. The thermal…

A: Given: Wire's length Lcu=12 m Initial temperature, Ti=23°C=273+23=296 K Temperature raised,…

Q: The heat conducted through a bar depends on which of the following? A. The coefficient of linear…

A: The expression of the rate of heat (Q/t) conducted through any medium is given as, Here, K is the…

Q: A super-insulated house is at a temperature of 20°C. The temperature outside is 0°C. The surface…

A:

Q: Substance A has a higher specific heat than substance B. With all other factors equal, which…

A: