hich statement is most logical? a Thermal temperature is released in form of photons to slow down gravitational contraction b Thermal temperature is released in form of photons to speed up gravitational contraction c Thermal temperature is released in form of photons to prevent gravitational contraction d Thermal temperature is released in form of photons to build up thermal pressure
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Which statement is most logical?
a
|
Thermal temperature is released in form of photons to slow down gravitational contraction
|
b
|
Thermal temperature is released in form of photons to speed up gravitational contraction
|
c
|
Thermal temperature is released in form of photons to prevent gravitational contraction
|
d
|
Thermal temperature is released in form of photons to build up thermal pressure
|
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- The temperature of an ideal gas is directly proportional to the average kinetic energy of its molecules. If a container of ideal gas is moving past you at 2000 m/s, is the temperature of the gas higher than if the container was at rest? Explain your reasoning.The sun has a luminosity of 3.9 × 1026 W and an angular diameter of θ = 32 arc mins. Assume that the sun is a blackbody. What is its physical radius and its effective temperature?After sitting on a shelf for a while, a can of soda at a room temperature (73∘73∘F) is placed inside a refrigerator and slowly cools. The temperature of the refrigerator is 37∘37∘F. Newton's Law of Cooling explains that the temperature of the can of soda will decrease proportionally to the difference between the temperature of the can of soda and the temperature of the refrigerator, as given by the formula below: �=��+(�0−��)�−��T=Ta+(T0−Ta)e−kt ��=Ta= the temperature surrounding the object�0=T0= the initial temperature of the object�=t= the time in minutes�=T= the temperature of the object after �t minutes�=k= decay constant The can of soda reaches the temperature of 53∘53∘F after 30 minutes. Using this information, find the value of �k, to the nearest thousandth. Use the resulting equation to determine the Fahrenheit temperature of the can of soda, to the nearest degree, after 60 minutes. Enter only the final temperature into the input box.
- S Physics: Section 50-4 | Sch x S Physics AB - Final review X S Physics: Section 50-4 | Sch x ← → aldine.schoology.com/assignment/5938514670/assessment AldinelSD.org Bookmarks G Google Image Resu... Gi have one in spanis.... S Solving Absolute V... 10 D Miles away from home 9. 8- 24 1 A B C 0 8:00 9:00 10:00 Time miles. The total distance travelled by the object is The net displacement (Ax) of the object is Displacement (Ax) of the object between 8:00 and 9:30 is Displacement (Ax) of the object between 8:00 and 12:30 is Word Bank: 11:00 Login Home | Schoology 12:00 miles. E 13:00 miles. miles. Physics chapter 6 Flashcar X + Q * X ⠀ Reading listAn employee puts m= 1.95 kg of melted ice cream at T0= 3.5゚C into the freezer. Assuming that ice cream freezes at T1= -1゚C how long in seconds will it take for the ice cream to reach its freezing temperature? The specific heat capacity of the melted ice cream is c= 4000 J/(kg×K)Suppose a blackbody at 425 K radiates just enough heat in 15.0 min to boil water for a cup of tea. How much time t will it take to boil the same water if the temperature of the radiator is 525 K? t = ? s
- Using the given charge-to-mass ratios for electrons and protons, and knowing the magnitudes of their charges are equal, what is the ratio of the proton's mass to the electron's? (The charge-to-mass ratios for electrons and protons are −1.7588×1011 C/kg and 9.5788e7 C/kg , respectively. Note that since the charge-to-mass ratios are given to five-digit accuracy, your answer may differ from the accepted ratio. Round your answer to at least five significant figures.) Mp/Me =The temperatures of objects A and B are measured, and it is seen that the temperature of B is 72 K more than that of A. If the temperatures had been measured in degrees C, what would have been the difference in the temperatures of the two? (please give detail explanation)The core of the Sun has a temperature of 1.5 × 107 K, while the surface of the Sun has a temperature of 4460 K (which varies over the surface, with the sunspots being cooler). Treat the core of the Sun and the surface of the Sun as two large reservoirs connected by the solar interior. Nuclear fusion processes in the core produce 3.8 × 1026 J every second. Assume that 100% of this energy is transferred from the core to the surface. Calculate the change in the entropy ΔS, in joules per kelvin, of the Sun every second. Rigel is a blue giant star with a core temperature of 5.0 x 107 K and a surface temperature of 12500 K. If the core of Rigel produces 60,000 times as much energy per second as the core of the Sun does, calculate the change in the entropy ΔSR, in joules per kelvin, of Rigel every second. Barnard’s Star is a red dwarf star with a core temperature of 7.0 x 106 K and a surface temperature of 3270 K. If the core of Barnard’s Star produces 5% as much energy per second as the…
- When two bodies of different temperatures and masses are put in contact, a the hotter body heats up and the colder body cools down until they reach the same temperature. b the hotter body cools down and the colder body heats up until they reach the same temperature. c the less massive body cools down and the more massive body heats up until they reach the same temperature. d the more massive body cools down and the less massive body heats up until they reach the same temperature.On a certain day, the temperature dropped from 480F to 170F in 6 hours. What is the temperature change in 0C and in K? a) ∆TC = 17.220C, ∆TK = 17.22K. b) ∆TC = 310C, ∆TK = 31K. c) None of these.no handwritten