The average particle density in the Milky Way galaxy is about one particle per cubic centimeter....
The average particle density in the Milky Way galaxy is about one particle per cubic centimeter. Express this number in SI units kg/m3. Assume that the universe is made up of 70% hydrogen and 30% helium. Please be very detailed with how you come up with the numbers..
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The average particle density in the Milky Way galaxy is about
one particle per cubic centimeter....
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8 ✕ 1011 solar masses. A star orbiting near the galaxy's periphery is 5.6 ✕ 104 lightyears from its center. What should the orbital period (in y) of that star be? If its period is 5.9 ✕ 107 y instead, what is the mass (in solar masses) of the galaxy? Such calculations are used to imply the existence of "dark matter" in the universe and...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0×1011...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0×1011 solar masses. A star orbiting on the galaxy’s periphery is about 6.0×104 light years from its center. What should the orbital period in years of that star be? (You do not need to enter any units.) 2.61×108 yr ¡Correcto! Su recibo es 160-1991 Intentos Anteriores If its period is 5.0×107 light years instead, what is the mass of the galaxy in solar mass? Such...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0x10^11...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0x10^11 solar masses. A star orbiting near the galaxy's periphery is 6.0X10^4 light years from its center. (For your calculations, assume that the galaxy's mass is concentrated near its center.) (a) What should the orbital period of that star be in yr ? (b) If its period is 6.0 x 10^7 years instead, what is the mass of the galaxy? Such calculations are used to...
(10%) Problem 9: A balloon filled with helium gas has an average density of pb= 0.26...
(10%) Problem 9: A balloon filled with helium gas has an average density of pb= 0.26 kg/m3. The density of the air is about pa= 1.23 kg/m². The volume of the balloon is Vi= 0.051 m². The balloon is floating upward with acceleration a. Randomized Variables Pb = 0.26 kg/m3 Vb = 0.051 m3 A 13% Part (a) Express the weight of the balloon, W, in terms of pb and Vb. W= B Pa HOME 9 6 3 Fb E....
A generation is about one-third of a lifetime. Approximately how many generations have passed since the...
A
generation is about one-third of a lifetime. Approximately how many
generations have passed since the year 0 AD?
The answer is 10^2 generations. I don’t understand how they
got this answer.
We are viewing this in the order of magnitude
Length in Meters (m) Masses in Kilograms (kg) Time in Seconds (s) 10-15 m diameter of proton 10-14 m diameter of large nucleus 10-27 kg- mass of proton 10-10 m diameter of hydrogen atom 10-15 kg mass of bacterium...
(20% Problem 5: There are lots of examples of ideal gases in the universe, and they...
(20% Problem 5: There are lots of examples of ideal gases in the universe, and they exist in many different conditions. In this problem we will examine what the temperature of these various phenomena are 25% Part (a) Give an expression for the temperature of an ideal gas in terms of pressure P, particle density per unit volume p, and fundamental constants T (P)(pkg vCorrect! 25% Part (b) Near the surface of Venus, its atmosphere has a pressure f 88...
choose correct answer. no explanation needed QUESTION 10 How do astrophysicists account for neutrino emission from...
choose correct answer. no explanation needed
QUESTION 10 How do astrophysicists account for neutrino emission from the Sun? Solar flares create neutrinos with very energetic magnetic fields. Convection releases neutrinos, which random walk through the radiation zone. Fission in the Sun's core creates neutrinos when protons turn into neutrons. The annihilation of positrons and electrons in the core produces neutrinos. Fusion in the Sun's core creates neutrinos when protons turn into neutrons, QUESTION 11 How does the interstellar medium impact...
please complete the questions has not answering with clarification of the answer to any page Name...
please complete the questions has not answering with
clarification of the answer to any page
Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...
There was no question about Carl’s genius. Seven years ago he decided to enter the competitive...
There was no question about Carl’s genius. Seven years ago he decided to enter the competitive nightmare that the personal computer business had become. Although on the surface that appeared to be a rather non-genius-like move, the genius came in the unique designs and features that he developed for his computer. He also figured a way to promise delivery in only two days for the local and regional market. Other computer makers also had rapid production and delivery, but they...
What is the volume of the sphere in Procedure 2 in units of cm3? Express your...
What is the volume of the sphere in Procedure 2 in units of
cm3? Express your answer to two significant figures.
LAB 14: IDEAL GAS LAW BASIC CONCEPTS TEXTBOOK: SECTIONS 15.2, YOUNG, 10TH EDITION DEFINITIONS Volume: The space taken up by an object, measured in cubic meters (m"). Pressure: For an enclosed gas, pressure is defined as the force exerted per area by the gas on the container walls, measured in Pascal (1 N/m) Temperature: A measure of the average...
(10%) Problem 9: A balloon filled with helium gas has an average density of pb= 0.26 kg/m3. The density of the air is about pa= 1.23 kg/m². The volume of the balloon is Vi= 0.051 m². The balloon is floating upward with acceleration a. Randomized Variables Pb = 0.26 kg/m3 Vb = 0.051 m3 A 13% Part (a) Express the weight of the balloon, W, in terms of pb and Vb. W= B Pa HOME 9 6 3 Fb E....
A
generation is about one-third of a lifetime. Approximately how many
generations have passed since the year 0 AD?
The answer is 10^2 generations. I don’t understand how they
got this answer.
We are viewing this in the order of magnitude
Length in Meters (m) Masses in Kilograms (kg) Time in Seconds (s) 10-15 m diameter of proton 10-14 m diameter of large nucleus 10-27 kg- mass of proton 10-10 m diameter of hydrogen atom 10-15 kg mass of bacterium...
(20% Problem 5: There are lots of examples of ideal gases in the universe, and they exist in many different conditions. In this problem we will examine what the temperature of these various phenomena are 25% Part (a) Give an expression for the temperature of an ideal gas in terms of pressure P, particle density per unit volume p, and fundamental constants T (P)(pkg vCorrect! 25% Part (b) Near the surface of Venus, its atmosphere has a pressure f 88...
choose correct answer. no explanation needed
QUESTION 10 How do astrophysicists account for neutrino emission from the Sun? Solar flares create neutrinos with very energetic magnetic fields. Convection releases neutrinos, which random walk through the radiation zone. Fission in the Sun's core creates neutrinos when protons turn into neutrons. The annihilation of positrons and electrons in the core produces neutrinos. Fusion in the Sun's core creates neutrinos when protons turn into neutrons, QUESTION 11 How does the interstellar medium impact...
please complete the questions has not answering with
clarification of the answer to any page
Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...
What is the volume of the sphere in Procedure 2 in units of
cm3? Express your answer to two significant figures.
LAB 14: IDEAL GAS LAW BASIC CONCEPTS TEXTBOOK: SECTIONS 15.2, YOUNG, 10TH EDITION DEFINITIONS Volume: The space taken up by an object, measured in cubic meters (m"). Pressure: For an enclosed gas, pressure is defined as the force exerted per area by the gas on the container walls, measured in Pascal (1 N/m) Temperature: A measure of the average...
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