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- Molecular clouds composed mostly of hydrogen molecules have been detected in interstellar space. The molecular density in these clouds is about 1E10 molecules*m-3, and their temperature is around 25 K. What is the pressure (in bar) inside such a cloud? Enter your answer in accordance with the question statement barTask 5: Using the physical relationships to make predictions Now, imagine a giant disk with diameter D = 1 km with the same thickness and composition as the previous disks. Using the formulas for the straight lines found in Task 4: • What circumference do you predict for the giant disk? What mass do you predict for the giant disk?Which of the following is least reasonable regarding the "water hole"? Group of answer choices It consists of frequencies which are greater than the frequencies of atmospheric emissions. It relates to the natural frequencies of vibration of hydroxyl (OH) and hydrogen (H), respectively. It occurs in that part of the electromagnetic spectrum where the galactic "noise" from stars and interstellar clouds is minimized. It is considered the "electromagnetic oasis" for interstellar communication. It corresponds to wavelengths in the 18-21 cm range.
- Radius Problem 4) Is the center of gravity of our solar system (including plantes) exactly in the same location as the Oort Cloud 20,000 to 100,000 AU center of gravity of the sun on its own? reason your answer nt movement, but no neel has a radius of 6 che net torque on theWhat is Tyndall Effect? Explain why is it important for us to learn about it?The time it takes for a cloud 106,000 AU in radius to collapse in "free-tall to form a new star is half the time it would take for an object to orbit the star on an extremely elliptical orbit with a semimajor axis of 53,000 AU (half the 106.000 AU radius). Part A Use Kepler's third law to find the collapse time, assuming the star has the same mass as the Sun. Express your answer in years to two significant figures. VE ΑΣΦΑ t= Submit Provide Feedback Request Answer years