Ancient astronomers postulated that the sun, moon, stars, and planets were tied to a revolving what to account for their daily and annual movements.
Q: Which unit of measurement is larger?
A: 1 rad = 57.3 degree. So for 1 rad we required 57.3 degree. So 1 degree = (1/57.3) < 1 rad
Q: At any moment the sun shines on how much of the mnoon?
A: Required :: At any moment the sun shines on how much of the moon.
Q: Although we say that the Earth orbits the Sun, in reality they are both orbiting the center of mass.…
A:
Q: In what direction in space with respect to Earth's rotation axis and the plane of its orbit is the…
A: The Earth axis is tilted (23.5°). In june, sun's rays all the way to north pole ( in northern…
Q: What would be the period of revolution of a hypothetical planet whose circular orbit around the sun…
A:
Q: If the semi-major axis, a, is measured in AU and the orbital period, p, is measured in years, then…
A: No, its too big. We know Jupiter as like other planets rotates around sun. Although the Jupiter not…
Q: A newly discovered planet orbits a star identical to our own with a period of 0.5years and an…
A: Newton gave his well know law of gravitation. Kepler gave 3 laws which govern the motion of…
Q: The Earth is not a perfect sphere because it is spinning with respect to most of the universe. The…
A: We know that ,due to non spherical shape of tidal force exerted by sun and moon as a torque on a…
Q: What does the greek symbol u mean in Physics? (Pronounced mu?) Also, what does angular mean? (As…
A: a- To define the greak symbol μ (Pronounced as mu). b- To define angular (ω).
Q: believe that Earth should be
A: The concept of spherical earth originated in the mind of Greek philosophers. In India the spherical…
Q: discuss some of the cultural and philosophical implications related to the geocentric model
A: The geocentric model, which places the Earth at the center of the universe, has had significant…
Q: Tycho Brahe's observations of the stars and planets were accurate to about 1 arc minute. To what…
A:
Q: Every 30 days, the area swept in space by the planet is different. Every 30 days, the distance…
A:
Q: A newly discovered planet orbits a star identical to our own with a period of 0.5years and an…
A: We have a planet which orbits around a star of mass say M in an orbit with eccentricity e=0.4 and…
Q: If we see the stars at night on a point of the equator line on the earth, the most stars motion is…
A: 1. Stars at the Celestial Poles (e.g., North or South Pole):Stars appear to move in perfect circles…
Q: The sidereal day is one rotation of the Earth relative to the The day is longer by 4 minutes. O Sun;…
A: Solar day is the time taken by earth to complete one rotation about its axis with respect to sun.…
Q: UUse the table to answer questions T13 A student collects the following data about the Sun, stars,…
A:
Q: Where is the Sun relative to Mars on April 14, 2012?
A: On April 14, 2012 Sun was 57.4 million miles away from Mars.
Q: Saturn's moon Titan is observed to orbit with a period = 15.945 days and at a %3D distance =…
A:
Q: The Earth covers about 1° per day in its orbit about the Sun, and the solar day is slightly longer…
A: Step 1:If Earth spun in a retrograde direction like Venus but still had the same sidereal period of…
Q: The radius of the Earth's orbit is 1.50 1011 m and that of Mars is 2.28 1011 m. The star that this…
A: The expression for the orbital period,
Q: The time it takes the Earth to complete one 360-day rotation around its axis is 24 hours, 4…
A: To choose correct option for the time it takes the Earth to complete one 360-day rotation around its…
Q: The time it takes the Earth to complete one 360-day rotation around its axis is O 24 hours, 4…
A: Earth rotates on its axis as well as it revolves around sun .
Q: If the distance between the Earth and the Sun were halved, what would happen to the Sun's angular…
A: Angular diameter is not a distance it is an angle. In this case angle subtended by sun at earth is…
Q: A space ship lands on an unknown planet. The occupants notice that the stars never rise or set but…
A: A planet can be considered to have two halves, one half is its northern hemisphere and the other…
Q: If Earth rotated once every 48 hours, and everything else was the same, which of the following…
A: It is the rotation of the Earth, which decides about day and night.
Q: Choose the BEST answer to the following: The highest ocean tides occur when the Earth and Moon are…
A: Tides are long period waves that roll around the planet as the ocean by the gravitational pull of…
Ancient astronomers postulated that the sun, moon, stars, and planets were tied to a revolving what to account for their daily and annual movements.
Step by step
Solved in 2 steps
- Given that Earth is about 4.6 billion (4.6 x 10%) years old, how many precessional cycles have occurred?Kepler's 1st law says that our Solar System's planets orbit in ellipses around the Sun where the closest distance to the Sun is called perihelion. Suppose I tell you that there is a planet with a perihelion distance of 2 AU and a semi-major axis of 1.5 AU. Does this make physical sense? Explain why or why not.The radius of the Earth is 6,400 km. What speed and direction would you have to travel along the equator to make the sun appear fixed in the sky is most nearly which of the following?
- Given that Earth is about 4.6 billion (4.6 x 10%) years old, how many precessional cycles have occurred?The London Eye has a diameter of 135 meters. A rider boards the London Eye at ground level. Through what angle ? has the wheel rotated when the rider is 32.5 meters above ground for the first time? (Round your answer to one decimal place.)Why does the moon rotate aroud the Sun, and is it important?