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- 1) i. In the tropics, it is generally recommendable to paint houses especially the interior white. Discuss ii. A cup of hot tea or coffee left on a table in a room will cool to room temperature. DiscussHi I need help with this question: The Goodyear blimp we usually see hovering above our heads at a football game contains 5200 m3 of helium gas. If there are 1090 kg of gas at an absolute pressure of 1.10 105 Pa in the blimp, what is the temperature of the gas? The atomic mass of helium 4.00260 g/mol.2.) This slope will give you the change in weight (Newtons) per second. Knowing the latent heat of vaporization for liquid nitrogen, determine dQ/dt. Use the value LV=2.00×105 J/kg. Show your calculations here.
- Homework 3: Problem 9: An electric coffeemaker has a 790-W heating element. The specific heat of water is 4.19 × 103 J/(kg⋅°C). How long, in seconds, does it take the coffeemaker to heat 0.57 L of water from 18°C to 95°C, assuming all the heat produced by the heating element goes into the water? Δt = ______Module 5 Elementary Application 2. Police arrive at the scene of a murder at 12 am. They immediately take and record the body’s temperature, which is 90 °F, and thoroughly inspect the area. By the time they finish the inspection, it is 1:30 am. They again take the temperature of the body, which has dropped to 87 °F, and have it sent to the morgue. The temperature at the crime scene has remained steady at 82 °F. Determine the time of death.'Calculate the amount of radiation emitted for a unit surface (1 m2) for a hot sidewalk in Birmingham at 53°C and £ ≈ 0.82. Express your answer SI units (in W).
- A 10-kg chunk of ice at -30°C is mixed with 2.13 kg of water at 50°C. Find how much water freezes after the mixture comes to equilibrium, assuming no heat gain or loss with the environment. Express your answer in kg. (What can I do to solve this?)Please answer with complete solution thank you. Please answer it now i really need it after 20mins. Define a new temp scale in 0S in which the boiling pt. and freezing pt. of water at normalconditions are 8800S and 200S respectively and correlate this scale with Fahrenheit and Celsius scales. Under what circumstance, thermometers 0F & 0S will have the same numerical reading? 0C & 0S? If the absolute temp is 9500R, what is the temp in 0S?The hot glowing surfaces of stars emit energy in the form of electromagnetic radiation. It is good approximation to assume that the emissivity e is equal to 1 for these surfaces. Answer Part A and B.
- Please answer it both clearly. Thank you. 2. A copper has essentially no sag between poles 50m apart on a winter day when the temperature is 10°C. How much longer is the copper wire on a summer day when T=35.0°C? 3. What is the volume of a aluminum ball at 10°C if it's volume atv160°C is 300cm³?A 11-kg chunk of ice at -30°C is mixed with 2.25 kg of water at 50°C. Find how much water freezes after the mixture comes to equilibrium, assuming no heat gain or loss with the environment. Express your answer in kg. (What equation can I use to solve this problem. Also, sometimes I see the standard heat capacity of water to be 4186 and 4182, which is correct?)can you pls help me solve this.. I can’t solve it. A 2m diameter disk made of brick fire 30cm thick is in contact with a 3m x 2m insulating brick wall that is 3cm thick. Determine (a) the temperature between the surfaces of wood and insulating wall, the temperature on the free sides of the wood and insulating brick is 60 degrees C and 50 degrees C respectively. The thermal conductivity of the wood is 0.47 W/m-k and 0.15 W/m-k for the insulating brick wall. (b) How long would it take to generate a power of 20 Watts? **a) time to generate a 20 Watt power **b) Temperature between surfaces in Celsius •Pls answer with complete and detailed solution (3 decimal places all final answers with correct units) •Sketch an illustration/diagram with labels (this is a must; for a better understanding) Thank you I will give your answer a LIKE for helping me...
