Why do we say that a baseball falls towards the earth and not the earth towards the baseball?
Why do we say that a baseball falls towards the earth and not the earth towards the baseball?
Why do we say that a baseball falls toward Earth and not Earth towards the baseball? The Earth’s mass is much much greater than the baseball and therefore the gravitational pull from the Earth is much greater than that from the baseball. Because of this we say that the baseball is falling towards the Earth.
When a ball is tossed in the air and reaches the top of its arc?
When a ball is tossed in the air and reaches the top of its arc, which of the following quantities are zero? The speed and velocity of the ball.
What are the main advantages of studying objects at many different wavelength of radiation?
What are the main advantages of studying objects at many different wavelengths of radiation? By comparing the features visible in each, multi-wavelength observations can COMPLEMENT each other, greatly extending our perception of the universe around us.
What things about celestial objects can light reveal to us select all that apply?
As light has the finite speed it takes some time for stars’ light to reach Earth. Therefore, light from any star can tell us only its past. What things about celestial objects can light reveal to us? wavelength.
Which celestial feature is largest in actual size?
Terms in this set (17)
- which celestial feature is largest in actual size. the milky way.
- the milky way galaxy is best described as.
- a light year is.
- in which list are celestial features in order of which in creasing size.
- describes galaxies.
- 3 different shaped galaxies.
- terrestrail planet.
- gas giants.
Which proves that the universe is expanding?
The American astronomer Edwin Hubble made the observations in 1925, proving that there is a direct relationship between the speeds of distant galaxies and their distances from Earth.
Which respect to one galaxies have been found?
moving closer together. 2.
Which of these galaxies is most likely to be the oldest?
GN-z11 is currently the oldest and most distant known galaxy in the observable universe, with a redshift of z = 11.09.
Why does the Milky Way appear curved?
Typically, the warped shape of a galaxy is caused by instabilities on the disk’s edge, where the galaxy’s gravitational forces are weaker and objects are more prone to bending and twisting. It’s a common phenomenon for spiral galaxies.
Is the Milky Way moving in a straight line?
The Milky Way does not sit still, but is constantly rotating. As such, the arms are moving through space. The sun and the solar system travel with them. Even at this rapid speed, the solar system would take about 230 million years to travel all the way around the Milky Way.
How many spiral arms does the Galaxy have?
4
How are spiral galaxies and elliptical galaxies different?
Spiral galaxies have a central bulge of stars surrounded by a disk that contains arms, which form a spiral structure. Elliptical galaxies can be classified in terms of how long and thin they appear. Elliptical galaxies don’t actively create new stars, but usually contain very old stars and little gas and dust.
What is the heaviest thing in space?
neutron stars