4. Which of the following constituents of the Universe is present in the highest fraction in terms of its contribution to the total energy of the Universe? a. Dark Matter. b. Dark Energy. c. Light. d. Normal (baryonic) matter.

Q: Gravitational lensing can be used to detect which component of the Universe?   a. Dark Matter.…

A: Answer: (A) Dark Matter

Q: Current evidence suggests that the universe is   a. flat, infinite, and neither expanding nor…

A: To determine: The correct option.

Q: Elon Musk landed on a planet made of antimatter, there would be an explosion and

A: When matter and antimatter come in contact anhilation takes place and both converted to energy By…

Q: Which of the following events in the early universe likely came first?   a. Formation of the…

A: Answer: (b) Big Bang Nucleosynthesis

Q: Which of the following things have mass?   a. Dark Energy.   b. Photons.   c. None of the…

A: Answer: (d) dark matter

Q: We know that dark matter must exist in galaxies. If not, many of the stars in a galaxy would ...…

A: Dark Matter is an unknown matter which is not visible. The reason behind its invisibility is, it…

Q: What started the clumping of matter in the early universe that eventually became the seeds of…

A: The force that is carried by the field of virtual astronomical particles in the quantum field is…

Q: 6. Two double stars, one having one solar mass and the other three solar masses, rotate about their…

A: Given The mass of stars are M1=MoM2=3Mo Where Mo is the solar mass. Mo=1.989×1030kg the distance…

Q: An object is moving a speed 8c/10, where c is the speed of light.  Calculate gamma (γ).

A: Given: speed of the object, v = 8 c / 10.  Where c = speed of light.

Q: The equation E = mc^2 illustrates that a) energy can be converted into mass d) Matter can be…

A: Explanation:  The equation E = mc2 illustrates that rest mass and energy are equivalent, meaning…

Q: 12. Convert 4.6 light years to the distance in kilometers (speed of light = 300,000 km/sec) 1 lb =…

A:

Q: What effect does increasing the interaction strength of a massive particle species have on its…

A: The thermal relic abundance of a particle species is determined by the balance between its…

Q: The first evidence for the dark energy was that: a. the cosmic microwave background spectrum was a…

A: The first evidence for dark energy came in 1998 two teams of astronomers measured light coming from…

Q: This scientist tried to determine the age of the universe by looking for the temperature of cosmic…

A: The cosmic microwave background radiation (CMBR) is radiation that was radiated by the early…

Q: Cesar reads about the big bang theory, which explains that the universe expanded as the result of an…

A: Cesar reads about the big bang theory, which explains that the universe expanded as theresult of an…

Q: OT he stone slab is so t its temperature does not change. and the slab are isolated from the e…

A:

Q: Which statement best describes the Big Bang Theory? Galaxies within the universe collided about 13.5…

A:

Q: Which of the following is most likely to yield evidence to support one of the models of the future…

A: Required : Which of the following is most likely to yield evidence to support one of the models of…

Q: Which of the following might you expect to be an additional consequence of the fact that galaxies…

A: Given Which of the following might you expect to be an additional consequence of the fact that…

Q: 17) In an accelerating Universe, the scale factor a. grows at an ever-decreasing rate over time. b.…

A: The scaling factor, represented by a(t), tells us to what extent our universe has expanded. Now if…

Q: Gravitational waves travel at the speed of light. Their speed, wavelength, and frequency are related…

A: frequency f=10 Hzspeed of light c=

Q: 3- Compare the size of: observable universe and the earth. Scale down the numbers you found to more…

A: To compare the size of the observable universe and the earth.

Q: If the mass density of the universe is above the critical density as it appears to be with the mass…

A: Given, The mass density of the universe is above the critical density.

Q: Which is a scientific hypothesis? Select one: a.atoms are the smallest matter particles b.the…

A: Meaning of hypothesis is presumption or supposition. A scientific hypothesis is that presumption or…

Q: 8. Milky Way The Sun is a star in the Milky Way galaxy. When viewed from the side, the galaxy looks…

A: Diameter is Thickness is Note:Speed of light is Find:(a) The diameter and thickness in (b) The…

Q: Consider the following stellar spectra from the sun and from a supercluster of galaxies. ABSORPTION…

A: Given information: The absorption spectrum of the Sun compared to the Super-cluster of galaxies:

Q: Which of the following represents the notion that our observable Universe may be a part of a much…

A: To find which represent the notion that our observable universe may be part of much larger whole?

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.