At its stable equilibrium point, the temperature of Daisyworld is ___ the optimal temperature for daisy growth. Choose one of the following options: a) Below b) Above c) Equal to
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At its stable equilibrium point, the temperature of Daisyworld is ___ the optimal temperature for daisy growth. Choose one of the following options:
a) Below
b) Above
c) Equal to
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- One mole each of a diatomic gas and a monoatomic gas are brought to the same, very high temperature. What is the ratio of the diatomic gas’ internal energy to the monoatomic gas’ energy? 7/5 7/3 3/7 15. A simple pendulum is suspended from the ceiling by means of a string of length 2.15 m long and has a mass of 4.08 kg. You give it a push away from vertical so that it starts swinging with a speed of 2.83 m/s. Due to friction at the pivot point, 1.00 Joule of the pendulums initial kinetic energy is lost as heat during the upward swing. What maximum angle will it reach, with respect to the vertical, before falling back down? 48.6 degrees 42.3 degrees 34.7 degrees 35.9 degreesWhich of the following statements correctly relates temperature and kinetic energy? A Substances whose molecules have low kinetic energy have high temperatures. Substances with high kinetic energy in their molecules have low temperatures. C The higher a substance's temperature, the greater the kinetic energy of its molecules. The lower a substance's temperature, the greater the kinetic energy of its molecules.
- 93 J of work are done on the gas in the process shown in the figure. (Figure 1) Figure p (kPa) 200- 0 0 Vf 2Vf 3Vf 1 of 1 V Part A What is Vf in cm³ ? Express your answer in cubic centimeters. V₁ = = Submit VG ΑΣΦ Provide Feedback X Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining ? cm³A gas with an initial temperature of 940 °C undergoes the process shown in the figure. (Figure 1) Figure p (atm) 3 2 1- 0 0 100 200 2 300 V (cm³) Part A What type of process is this? Isochoric. Isobaric. Isothermic. Submit ✓ Correct Part B What is the final temperature in °C? Express your answer using two significant figures. T= 3400 °C Submit V= Previous Answers Part C ✓ Correct Previous Answers How many moles of gas are there? Express your answer to two significant figures and include the appropriate units. Submit HÅ A 29 10-4 mol Previous Answers Request Answer P Pearson ?A student is asked to sketch a pV diagram for a gas that goes through a cycle consisting of (a) an isobaric expansion, (b) a constant-volume reduction intemperature, and (c) an isothermal process that returns the gas to its initial state. The student draws the diagram as shown. What, if anything, is wrong with the student’s diagram?
- m = 0.593 kg of methanol in atmospheric pressure is heated with an electric heater from T₁ = 30.2 °C to its boiling point. After the heating my methanol is vaporized. Heating and vaporizing takes t = 450.41 s with n=0.59 heater's efficiency. What is the volume of methanol? V = What is the energy required for heating? E₁ = 1 kJ m³ Your last answer was interpreted as follows: 1 What is the energy required for vaporizing? Ev = 1 kJ Your last answer was interpreted as follows: 1 What is the power of the heater? P = 1 с Your last answer was interpreted as follows: 1 Your last answer was interpreted as follows: 1 What is the electr. energy needed for heating and vaporizing? Eε = 1 kJ Your last answer was interpreted as follows: 1 h Do not leave any fields blank. If you don't know the answer, insert 1 for example. Insert the answer with 3 significant digits without rounding the answer. Constant P Tb Value Unit 2.53 1165 786.3 64.7 °C umges Quantity heat capacity kg K kJ kW kg kg LAN Symbol h…0.0035 mol of gas undergoes the process shown in . (B) What is the initial temperature? (C) What is the final temperature?What is the vapor pressure of solid carbon dioxide (dry ice) at –78.5ºC–78.5ºC? The phase diagram for carbon dioxide. The axes are nonlinear, and the graph is not to scale. Dry ice is solid carbon dioxide and has a sublimation temperature of –78.5ºC–78.5ºC.
- 45 J of work are done on the gas in the process shown in (Figure 1). Figure p (kPa) 300- K 200- 100- 2V₁ 3V₁ 0 0 V < 1 of 1 What is V₁ in cm³? Express your answer in cubic centimeters. ► View Available Hint(s) IVE ΑΣΦ V₁ = Submit Provide Feedback ? cm³Suppose you start your day in Denver, on a cool 10°C spring day. The local atmospheric pressure is 85 kPa. You fill your car’s tires until the gauge shows 210 kPa (about 30 psi). You then drive up to Fairplay, Colorado, where the atmospheric pressure is lower—70 kPa—and the temperature drops to 0°C.When you finish lunch, you check your tire pressure. What does the gauge read?Which of the following is a true statement about passive solar heating? It is effective only during the summer months. It is effective only during the summer months. A It is based in part on the principle of the greenhouse effect. It is based in part on the principle of the greenhouse effect. B It is not used to heat commercial buildings. It is not used to heat commercial buildings. C It is not efficient because it cannot produce high-quality energy. It is not efficient because it cannot produce high-quality energy. D It produces more pollution than heating with an electric heat pump.