0
What else can I help you with?
Does the velocity of a star toward or away from earth determine measuring the shift of its spectral lines?
Yes. If the star is moving away from the Earth, its spectral lines will shift towards the red end of the spectrum. If it is moving towards the Earth, its spectral lines will shift towards the violet end of the spectrum. This is due to Doppler effect.
The tangential velocity of an Earth satellite is its velocity?
The tangential velocity of an Earth satellite is its velocity perpendicular to the radius vector pointing towards the center of the Earth. It represents the speed at which the satellite is moving along its orbital path. This velocity is crucial for maintaining the satellite's orbit and is calculated using the satellite's distance from the center of the Earth and gravitational force acting upon it.
When object moves upwards what is the velocity and acceleration?
When an object is moving upwards, its velocity is directed upwards. If the object is near the Earth or any other planet, then its acceleration is directed downwards, which also means that its upward velocity is decreasing.
If a person is standing still on the surface of the earth and the earth is rotating at 1500 km east what is that persons velocity?
The person's velocity would be 0 km/h since they are not moving in relation to the surface of the Earth. Their velocity would only change if they start moving relative to the surface, but standing still means their velocity is 0.
Why don't satellites get pulled towards the Earth's surface?
Satellites remain in orbit around the Earth due to a balance between the gravitational pull of the Earth and the satellite's velocity. The satellite's forward velocity allows it to continue moving tangentially to the Earth's surface, preventing it from being pulled towards the surface. This balance enables satellites to maintain their orbit without falling back to Earth.
Why do you feel the time increase towards east and decreases towards west?
Time increases towards the east because of the rotation of the Earth. As we move eastward, we are moving in the direction of the Earth's rotation, which means we are moving towards the future. Conversely, time decreases towards the west because we are moving against the Earth's rotation, which puts us in the past.
What is the tangential velocity and centripetal acceleration of the earth moving around the sun?
Tangential velocity squared is GMs/r and velocity v =29814m/s and the centripetal acceleration is v2/r= 5.928 E-3 m/s2
What holds the moon in orbit?
The gravitational force between the moon and Earth keeps the moon in orbit. This force pulls the moon towards Earth, but the moon's velocity allows it to continue moving in a circular path around the Earth.
Are quasars closest to earth?
No, quasars are not the closest objects to Earth. Quasars are extremely bright and distant celestial objects located billions of light-years away, typically at the centers of galaxies. The closest stars to Earth are in our own Milky Way galaxy.
What if no distant galaxies showed any redshift or blueshift?
It would mean that the universe was radially static. That is, no galaxy was moving towards or away from the earth. This could happen if everything in the whole universe were moving in the same direction at the same [linear or rotational] velocity.
Are some quasars nearly 13 billion light-years from earth?
Yes, there are some quasars that are nearly 13 billion light years from the earth.
What is the relationship between the moon's velocity and its orbit around the Earth?
The moon's velocity affects its orbit around the Earth. The moon's velocity must be balanced with the gravitational pull of the Earth to maintain its orbit. If the velocity is too slow, the moon may fall towards the Earth; if it is too fast, the moon may move away from the Earth.
