QUESTION 2 A steel tape having a correct length at 20°C was used to measure a baseline and the recorded length is 652.6 m. During measurement the average temperature is 16°C. Determine the total temperature correction in meters. NOTE: Units are not required. Use negative sign for too short.
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- 0. The coffee's temperature is changing at a rate of r (t) = -8(0.8')'C per minute, with t in minutes. Estimate the coffee's temperature A cup of coffee at 90 C is put into a 20°C room when t = 10. when t Round your answer to two decimal places.QUESTION 15 The volume of an automobile tire is 2.5 x 10 m3, the pressure of the air in the tire is 2.5 atm and the temperature is 25C . what is is the mass of air in grams ? The mean molecular mass of air is 29g. 1 atm = 1.01 x 105 Pa Calculate to 2 decimals. Chck Save and Submit 10 soee and submit. Click Save AL Answers to save all answers. Save All Answe 76 F ClearAn arctic weather balloon is filled with 1.56L of helium gas inside a prep shed. The temperature inside the shed is 11.°C. The balloon is then taken outside, where the temperature is 2.°C. Calculate the new volume of the balloon.You may assume the pressure on the balloon stays constant at exactly 1atm. Round your answer to 3 significant digits.
- An arctic weather balloon is filled with 40.7 L of helium gas inside a prep shed. The temperature inside the shed is 7.°C. The balloon is then taken outside, where the temperature is −11.°C. Calculate the new volume of the balloon.You may assume the pressure on the balloon stays constant at exactly 1atm. Round your answer to 3 significant digits.Unpredictable fluctuations in temperature can cause the measurements to be described in terms of (Accuracy, Precision) as : A. Figure A B. Figure B C. Non of them AA metal ball, which has a surface area of 175 cm2, is heated in a furnace to 678 oC. a)State the value of temperature in the correct SI units. State your answer as a whole number (and use this value as a whole number, if needed in subsequent calculations). b)State the area in correct SI units. Give your answer in Scientific notation using E for x10x., e.g. you would enter 3.21x106 as 3.21E6. Make sure you have 3 significant figures in the first part of the answer and use this value to this degree of accuracy, if needed in subsequent calculations.Note that Numbas will mark equivalent answers as correct e.g. if 3.21E6 was the correct answer then 32.1E5 or 321E4 etc. would also be marked correct. c)If the emissivity of the metal ball is 0.7, at what rate does it radiate energy? (Stefan Boltzmann constant, s= 5.67 x 10-8 W m-2 K-4) State your answer (in Watts) to the nearest whole number. d)What is the peak wavelength of the radiation emitted by the metal ball? Give your answer (in µm) to…
- A balloon is filled to a volume of 1.50 L with 3.00 moles of gas at 25 °C. With pressure and temperature held constant, what will be the volume (in L) of the balloon if 0.50 moles of gas are released? with the correct amount of sig figsThe vapor pressure of Substance X is measured at several temperatures: temperature vapor pressure -47. °C 0.0484 atm -35. °C 0.131 atm -23. °C 0.322 atm Use this information to calculate the enthalpy of vaporization of X. Round your answer to 2 significant digits. Be sure your answer contains a correct unit symbol. x10QUESTION 8 This problem is concerned with the same situation as the previous problem. A piece of unknown material weighs 0.4 kg. It is heated to 70 °C, then transferred into a 2 kg bath of oil at 20 °C. The bath temperature eventually reaches 40 °C. Assuming that Cmaterial = 0.6 kJ/(kg-K), calculate the specific heat of the oil in kJ/(kg-K). Do not include units in your answer and write the numerical value in normal form. QUESTION 9 During the video on heat conduction, H through a single pane window was calculated. Now, consider a indow thet hoc twe nenos with a 6 mm airgan between iaem Each nane has an area of 19 m2 The
- 2.00 mol of gas at a temperature of -160 °C fills a 2.70 L container. What is the gas pressure? Express your answer with the appropriate units. μÅ Value Submit Units ? Previous Answers Request AnswerAn object was left in a room of unknown surrounding temperature. The temperature of the object was summarized below with respect to the time t (in minutes) the object was initially observed. Predict and complete the information, i.e. determine the temperature in Celsius when t = 30 minutes. Put your answer accurate up to four decimal places. No need to put in the units of measurement. When t = 0, the temperature of the object is 30 degrees Celsius. When t = 10 minutes, the temperature of the object is 32 degrees Celsius. When t = 20 minutes, the temperature of the object is 33.6 degrees Celsius. When t = 30 minutes, the temperature of the object is unknown. Assume the system obeys Newton’s Law of Cooling and the surrounding temperature of the room did not change.LESSON: ZEROTH LAW OF THERMODYNAMICS AND TEMPERATURE MEASUREMENTMODIFIED TRUE or FALSE Directions: Write TRUE if the statement is correct, otherwise, change the underlined word/s or values to make the statement correct. Write your answer on the space provided before each item number. Statement: The Philippine one-peso coin has a diameter of 23.0 mm at 25 room temperature. Assume that the coin is made up of steel.15. The final length of coin when placed in boiling water is 23.207 mm.16. If the coin is heated at 42 degrees Celsius, then the increase in diameter is 0.0207 mm.17. If the initial temperature is doubled, then the increase in coin’s diameter when placed in boiling water is 0.0414 mm.