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- At 9:00am a thermometer reading 70°F is taken outdoors where the temperature is 15° F. At 9:05am, the thermometer reading is 45° F. At 9:10am the thermometer is taken back indoors where the temperature is fixed at 70°F. A. Find the value of k in four decimal places. Answer: B. Find the reading at 9:20am. Answer: °F C. How much time is needed to make the reading of the thermometer69.5°F since it was taken back inside? Answer: minFor each of the following temperatures, find the equivalent temperature on the indicated scale. (a) −234°C on the Fahrenheit scale ?°F(b) 99.0°F on the Celsius scale ?°C(c) 125 K on the Fahrenheit scale ?°FA patient has an illness that typically lasts about 24 hours. The temperature, T, in degrees Fahrenheit, of the patient t hours after the illness begins is given by: T(t) = -0.012t² +0.3t +98.7. Use your calculator to graph the function and answer the following questions. Round all answers to 1 decimal place. When does the patient's temperature reach it maximum value? Answer: After hours What is the patient's maximum temperature during the illness? Answer:
- If the specific heat of water is 4,186 J/kg∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C?. Hint: To get the ΔT (Change in temperature), get the difference between final temperature (Tf) and initial temperature (Ti). [ΔT = Tf – Ti ]The cubit is an ancient unit of measurement for length, where 1 cubit is approximately 444.25 mm. A cubic cubit (cubit3) is a measurement of volume. You have a steel container completely filled with gasoline. How many cubic cubits will spill out of the 28.8 cubits3 containers when the temperature is raised from 21.5 °C to 48.7 °C?A hot steel plate with a surface area of 1.52 m2 and a constant surface temperature of 166°C is exposed to ambient air at 22°C. If the convection heat transfer coefficient is 15.9 W/m². K, what is the rate of heat transfer (in W) from the plate to the air [round your final answer to zero decimal places]? T. S Air, T, 00
- Q1. a) Choose which quantity/unit is fundamental, or derived quantity/unit by ticking (√ ). Sl No Quantity Fundamental Quantity Derived Quantity Fundamental Unit Derived Unit Example m/s √ 1 volume 2 J/kg 3 viscosity 4 N/m 5 Surface tension 6 Angular velocity 7 s-2 8 Heat flux density 9 V/m 10 Thermal conductivity1000 kg of fish was placed on chiller box storage. The product temperature is 4°C. Determine the quantity of heat that the fish must release to bring itself to its freezing temperature.Note: Specific heat above freezing = 0.76 Kcal⁄kg − °CSpecific heat below freezing = 0.41 Kcal⁄kg − °CFreezing temperature = -2.2°C ANSWER: Q= 4712 Kcal2.2 kg of ice (solid phase of water) at -10°C is heated under atmospheric pressure. Answer the following questions. Use the following values for your calculation. specific heat of ice: 2.1 kJ/(kg °C) specific heat of water: 4.2 kJ/(kg °C) specific heat of vapor: 2.0 kJ/(kg °C) latent heat of fusion: 334 kJ/kg latent heat of vaporization: 2260 kJ/kg How much heat is required to change the phase of the liquid water to vapor? How much heat is required to raise the temperature of vapor to 200°C?
- 2.2 kg of ice (solid phase of water) at -10°C is heated under atmospheric pressure. Answer the following questions. Use the following values for your calculation. specific heat of ice: 2.1 kJ/(kg °C) specific heat of water: 4.2 kJ/(kg °C) specific heat of vapor: 2.0 kJ/(kg °C) latent heat of fusion: 334 kJ/kg latent heat of vaporization: 2260 kJ/kg How much heat is required to raise the temperature of the ice to melting point T = 0°C? How much heat is required to change the phase of the ice to liquid water? How much heat is required to raise the temperature of the liquid water to boiling point T = 100°C?1000 kg of fish was placed on chiller box storage. The product temperature is 4°C. Determine the quantity of heat that the fish must release to bring itself to its freezing temperature.Note: Specific heat above freezing = 0.76 Kcal⁄kg − °CSpecific heat below freezing = 0.41 Kcal⁄kg − °CFreezing temperature = -2.2°CA thermometer is removed from a room where the temperature is 70° F and is taken outside, where the air temperature is 10° F. After one-half minute the thermometer reads 50° F. What is the reading of the thermometer at t = 1 min? Round off your final answer to TWO DECIMALS ONLY. Input directly the numerical value for your answers. Say for example: answer = 7.21 degrees, input only 7.21 to avoid errors on your answers.