Q: If someone double the thickness of a wall built from a homogenous material, the rate of energy…
A:
Q: The inner surface of a plane brick wall is at 60°C and the outer surface is at 35°C. Calculate the…
A: Disclaimer: Since you have asked multiple question, we will solve the first question for you. If you…
Q: The specific heat of aluminum is 0.21 J/g°C. How much heat energy is released when a 10 g piece of…
A: Given:- The specific heat of aluminum is 0.21 J/g°C The mass of aluminum foil is m = 10 g The…
Q: A solid steel sphere of radius 50 cm is heated to 2000 K. If the sphere acts as a perfect radiator,…
A:
Q: What is the change in the rate of the radiated heat by a body at the temperature T1 = 20ºC compared…
A:
Q: A quantity of steam (550 g) at 125°C is condensed, and the resulting water is frozen into ice at…
A:
Q: When 25 g of ice at -20°C have absorbed 2500 cal of heat, what is the temperature of the resulting…
A: The temperature of an object tells us whether the material is hot or cold. When a material is…
Q: Dimensional formula for thermal conductivity is (here K denotes the temperature): 1) MLT–3…
A: Dimensional formula for thermal conductivity is (here K denotes the temperature)
Q: What is the heat capacity of water?
A: Specific heat, is the amount of heat required to change the heat content of exactly 1 gram of a…
Q: 20 g of 60°C water is mixed with 100 g of 15 °C water. What is the final temperature after heat…
A:
Q: How much heat must be supplied to a 325.0 g aluminum pan to raise the temperature of the pan from…
A: Given, mass of aluminum , m = 325.0 g change in temperature, ΔT =112.0 °C-35°C = 77 °C specific heat…
Q: A cylinder of diameter 3.00000 cm at 250 C is to be slid into a hole of a steel plate. The hole has…
A: According to the definition of linear expansion
Q: How much heat is necessary to change 435 g of ice -8 degrees Celsius to water at 20 degrees Celsius?
A:
Q: A human Body loses about 360 kJ of heat every hour at 23.4 0C. Assuming that an average human body…
A:
Q: Convert the temperature of 80°F to Celsius and Kelvin
A: solution-;given;-F=80oFwe want in degree celsius and kelvin.we have a temperature scale relation1)…
Q: When thermal energy is removed from a system, what happens to the average kinetic energy of the…
A: The average kinetic energy of system is directly proportional to temperature. Temperature of an…
Q: How much water mass do you lose while running for 3.0 h? At body temperature the heat of…
A: Given data: Power (P) = 340 W Time (t) = 3.0 h Heat of vaporization = 2.4 × 106 J/kg Required: Mass…
Q: How much heat energy is required to vaporize 1 gram of of ice at 1 Celsius?
A: In the given question, We have to determine the heat energy to vaporize 1 gram of of ice at 1…
Q: Water at an average temperature of 23C flows through a 10-cm diameter pipe that is 2.5m long. The…
A:
Q: Why is the temperature of pasteurization at 60°C?
A: Continuous heat-transfer systems are often used in traditional pasteurisation procedures. These…
Q: A quantity of steam (200 g) at 109 degrees Celsius is condensed, and the resulting water is frozen…
A:
Q: A 0.250-kg aluminum bowl holding 0.800 kg of soup at 25.0ºC is placed in a freezer. What is the…
A: Given: mass of aluminium,m= 0.250 kg mass of soup,m' = 0.8 kg initial temperature, T = 25 degree C…
Q: A 10 kg Leadbrick is dropped from the top of a 629 m tall television transmitting tower in North…
A: Mass of lead brick (m) = 10 kgHeight of the tower (h) = 629 metersPotential energy of the brick (PE)…
Q: How much heat does it take to completely melt 4 kg of ice, initially at -20oC?
A: The heat needed to melt the ice completely will be the sum of the heat needed to raise the…
Q: How much heat is necessary to change 100g of ice at -20 degrees celsius into water at 10 degrees…
A:
Q: A 0.250-kg aluminum bowl holding 0.800 kg of soup at 25.0 °C is placed in a freezer. What is the…
A: The amount of heat lost to cool the soup from 25°C to 0°C is…
Q: A 10-kg iron ball is dropped onto a pavement from a height of 100 m. If half of the heat generated…
A:
Q: If your body temperature is normal at 36°C what will it be in the US which uses another temperature…
A: Besides °C, another temperature scales are kelvin (K) and fahrenheit (F0). Degree celcius can be…
Q: A particular pair of human lungs have a volume of 2.5 L when inflated. At this volume, the…
A: The expansion and the compression of the lungs follows an adiabatic process. During an adiabatic…
Q: A glass window 0.50 cm thick measures 80 cm by 40 cm. How much heat flows through this window per…
A:
Q: On a cold day, the temperature difference between the inside and the outsideof a certain house is…
A: (given) Temperature difference (Tc) between the inside and the outside of a certain house = 25°C…
Q: The S.I. unit for temperature is Select one: a. Kelvin O b. Degree Fahrenheit c. Accumulated Thermal…
A: In the given question we have to find the S.I unit of temperature. Let's discuss some point…
Q: A person tries to heat up her bath water by adding 5.0 L of water at 80°C to 60 L of water at 30°C.…
A:
Q: One gram of water and 1 gram of soil (“land”) are at a temperature of 20°C (68°F). If 5 calories of…
A: The amount of heat transfer is given as, Here, m, c, Ti and Tf represent the mass, the specific…
Q: How much heat is necessary to change 220 g of ice at -5 degree Celsius to water at 20 degrees…
A:
Q: Thermal energy is added to 150 g of water at the rate of 55 J>s for2.5 min. How much does the…
A: Here, Q=55J/s×2.5×60s=8250J
Q: A 12 kg lead brick is dropped from the top of a 617 m tall television transmitting tower and falls…
A: (given) Mass of lead brick = 12 kg Distance from the top of tower = 617 m…
Q: How much heat is necessary to change 415 g of ice at -11 Celsius to water at 20 celcius?
A: Given: mass of ice, m = 415 g = 0.415 kg the temperature of ice, Tice = -11°C the temperature of…
Q: You draw in a deep breath on a chilly day, inhaling 3.0 L of 0°C air. If the pressure in your lungs…
A: The ideal gas law, PV=nRT Rearrange the above equation for the number of moles, n=PVRT
Q: It takes 880 J to raise the temperature of 350 g of lead from 0C to 20C. What is the specific heat…
A:
Q: A 4.0-kg aluminum block is originally at 10°C. If 160 kJ of heat is added to the block, what is its…
A: (given) Mass (m) of aluminium block = 4 kg Initial temperature (Ti) of…
Q: Water flowing over the Osprey Falls in Yellowstone National Park drops 46 m. If all of the…
A:
Q: How much heat is transferred to a 0.1 kg silver chain from the human body if was at 25°C and now its…
A:
Q: A cylinder of diameter 1.0 cm at 30 °C is to be slid nto a hole on a steel plate. The hole has a…
A:
Q: Is the temperature of body falls through 1 degree C , what will be the change on Kelvin scale?
A: The below temperature limit is absolute temperature (0 K or -273o C). Above this limit, the…
Q: How much heat must be supplied to a 550.0 g iron pan to raise the temperature of the pan from 18.5…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- 3) a) A wire sample (1 mm in diameter by 1 m in length) of an aluminum alloy (containing 1.2% Mn) is placed in an electrical circuit such as that shown in the figure below. A voltage drop of 432 mV is measured across the length of the wire as it carries a 10 A current. Calculate the electrical conductivity of this alloy - Length, I Area, A Sample geometry b) Copper has an electrical conductivity of 58.00 × 10° S/m and a free electron density of 104 x 10"m³. Calculate the drift velocity of these electrons under an electric field of 0.5 V/m.1) a) A wire sample (1 mm in diameter by 1 m in length) of an aluminum alloy (containing 1.2% Mn) is placed in an electrical circuit such as that shown in the figure below. A voltage drop of 432 mV is measured across the length of the wire as it camies a 10 A current. Calculate the electrical conductivity of this alloy -Length, / Area, A Sample geometry b) Copper has an electrical conductivity of 58.00 x 106 S/m and a free electron density of 104 x 10²7m²³. Calculate the drift velocity of these electrons under an electric field of 0.5 V/m.he coefficient of thermal conductivity of copper is four times that of zinc and thength of zinc rod is also four times that of copper rod, then find the junction temperature. How does the coefficient of thermal conductivity changes when Different material are used () Temperature of the material increases.
- design an apparatus that could be constructed to measure the thermal conductivity of solid samples in the range of 50 to 300 W/m . K. Write a brief report discussing in detail the overall size of the apparatus; components of the apparatus, including the heating source, the cooling source, insulation materials; and the measurement elements. In the report, include drawings and a sample experiment. Estimate the cost of such a setup and briefly discuss it in your report. Also, write a brief experimental procedure that could be used by someone who is unfamiliar with the apparatus.A warms transfers energy by conduction through its blubber at the rate of 150 W when immersed in 1.00 water. The walrus's internal core temperature is 37.0 and it has a surface area of 2.00 m2. What is the average thickness of its blubber, which has the conductivity of fatty tissues without blood?Why is it that only electrons near EF contribute to the electrical and thermal conductivity? Explain briefly in your own words.
- The thermal conductivity of a material depends only on the type of and is a constant. If a material is having low thermal conductivity then, the material is a good thermal Of the given materials, brass and steel, is a better conductor, as its. value is higher.Conduc-Thor-s. Thor has two square prism conductors that are made of the same ohmic material and with properties indicated below. Conductor Length Cross-Section Side Length Alpha Beta L/2 8/4 Suppose both conductors are subject to the same potential difference AV across their length while keeping their temperatures fixed. Which of the following is the correct relation between the electric currents, I, and Ig, through Aipha and Beta? O A. I = 81, %3D O B. 8I. = I3 Oc. Ia = 413 O D. 4la = I3I want the calculation for this expiremnt Note: the unit of thermal conductivity w/m.k
- Electronics Physics -HW2 QI. In a P-type germanium, ni = 2×10" electrons/m and the density of boron 4x1023 atoms/m'. The electrons and holes mobility are (0.4 and 0.2 m/ V. s) respectively. What is its conductivity before and after addition of boron atoms? Note: For after addition of boron atoms you need to compare the actual and approximate conductivity ملاحظة: بعد اضافة ذرات البورون يكون حساب التوصيليه بالاستخدام التقريب وبدون استخدام التقريب والمقارنة بين النتائج*7. Go A copper-constantan thermocouple generates a voltage of 4.75 × 10-3 volts when the temperature of the hot junction is 110.0 °C and the refer- ence junction is kept at a temperature of 0.0 °C. If the voltage is propor- tional to the difference in temperature between the junctions, what is the temperature of the hot junction when the voltage is 1.90 × 10-3 volts?(Electroplating) A steel part with surface area A = 130 cm² is to be tin-plated. What average plating thickness will result if 15 amps are applied for 10 min in an acid sulfate electrolyte bath? The cathode efficiency for tin is E = 90% and the plating constant C = 4.21 x 10-2 mm³/amp-s. V = CIt V = ECIt d = V A Typical cathode efficiencies in electroplating and values of plating constant C. Compiled from [18]. Plate Metal Electrolyte Cadmium (2) Cyanide Chromium (3) Chromium-acid-sulfate Copper (1) Gold (1) Nickel (2) Silver (1) Tin (4) Zinc (2) Cyanide Cyanide Acid sulfate Cyanide Acid sulfate Chloride Plating Constant ca Cathode Efficiency % mm³/amp-s (in³/amp-min) 6.73 × 10-² (2.47 × 10-4) X 2.50 × 10-2 (0.92 × 10-4) 7.35 x 10-2 10.6 x 10-² 3.42 x 10-2 (2.69 × 10-4) (3.87 × 10-4) (1.25 × 10-4) 10.7 x 10-2 (3.90 × 10-4) 4.21 x 10-2 (1.54 × 10-4) 4.75 × 10-2 (1.74 x 10-4) 90 15 98 80 95 100 90 95 ¹Most common valence given in parentheses (); this is the value assumed in determining…