For daily and yearly motions, ancient astronomers thought that the sun, moon, stars, and planets were related to a rotating
Q: 7. Suppose you are on a strange planet and observe, at night, that the stars do not rise and set,…
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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: If Earth be one half of its present distance from the Sun, by how many days will the present one…
A: According to Kepler’s third law, the orbital time period and the semi major axis of the orbit are…
Q: A superior planet is having a sidereal period of 1.6 years. Calculate the synodic period?
A: A planet is said to be superior to another planet if the second planet's orbit lies inside the first…
Q: If G = 6.674 ⨉ 10 −11m3/kg/s 2and M Earth= 5.972 ⨉ 10 24kg and the sidereal period of the Earth is…
A: Given : Mass of Earth: 5.972×1024 kg G=6.674×10-11 m3/kg/s Period T=27.32 days
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…
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Q: Calculate the magnitude of proper motion using ascension of 16.851 and declination-10.756 mas/yr
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Q: The earth is approximately spherical, but a much more accurate description is that an oblate…
A: The spherical shape is considered as a sphere with uniformity but it is not a sphere but looks…
Q: What should be the duration of the year if the distance between the earth and the sun gets doubled ?
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Q: Suppose the Sun were somehow replaced by a star with five times as much mass. How long would the…
A: Earth year is the amount of time that the earth takes to complete 1 revolution in its orbit about…
Q: When do neap tides occur?
A: Tides are formed due to the gravitational pull of the moon and the sun as these bodies interact with…
Q: Tycho Brahe's observations of the stars and planets were accurate to about 1 arc minute. To what…
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Q: Every 30 days, the area swept in space by the planet is different. Every 30 days, the distance…
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Q: Define rectilinear motion and uniform motion.
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Q: How long does its take the earth to Rotate once on its axis
A: The angular velocity of Earth is given below. ω=2πTT=2πω The angular velocity of Earth is…
Q: Calculate the difference in the gestational altitude (in km) by using solar day (24 hrs) and…
A: Where, Time in 1 Solar day T1 =(24hr x 60 min x 60 sec) =86400 sec. Time in 1 Sidereal day T2 =(23…
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: The average orbital distance of Mars is 1.52 times the average orbital distance of the Earth.…
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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,…
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Q: what causes us to experience a year
A: The main two seasons (winter and summer) help us to experience a year. The earth rotates around the…
Q: would have be the duration of the year if the distance between earth and sun were half the present…
A: To find-Duration of the year T2=?GIven-Distance between sun and earth becomes half.
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 moon has a mass of 7.34x10²² kg and a radius of 1.74x10⁶meters. If you have a mass of 66 kg, how…
A: Given The mass of the moon is mm=7.34×1022 kg. The radius of the moon is r=1.74×106 m. The mass of…
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: What is the difference between rotation and revolution?
A: Rotation Revolution Rotation of the Earth is its turning on its axis. Revolution is the…
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: What are the names of the following three well-known constellations?
A: (5) is Cassiopeia Cassiopeia, in Greek mythology, was a vain queen who often boasted about her…
Q: Ancient astronomers believed that the sun, moon, stars, and planets were tied to a revolving what to…
A: It is required to explain the annual and daily movement of the sky.
Q: Give examples where the concepts of ellipse is use in everyday activities or in any situation?
A: An ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the…
Q: What would be the duration of the year if the distance between the earth and the sun gets tripled.
A: We have to find out what is the duration of the year if distance between sun and earth is tripled
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: What is the difference between prograde rotation and retrograde rotation?
A: Given: prograde and retrograde rotation
Q: What would be duration of year, if distance - between earth & the sun gett doubled? (0) 129 days (0)…
A: We need to compute-Duration of the year (T2)=?The data given as-Original orbital radius=r1New…
Q: Tonight you see a waning crescent in the night sky. A few (n) days later, the night is once again…
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Q: to two decimal places): (what is ‘h’?)Eccentricity of earth orbit is 0.0167µ(sun) = 1.32712E+11…
A: a) To calculate the speed of the Earth around the sun at aphelion, we need to use the equation for…
Q: Determine what the period of the revolution of the earth would be if it's distance from the sun were…
A: Using Kepler’s third law,
Q: The Earth has a mass of 5.97 * 1024 kg and the Moon has a mass of 7.35 * 1022 kg. If they are…
A: Write the expression for the gravitational force.
For daily and yearly motions, ancient astronomers thought that the sun, moon, stars, and planets were related to a rotating
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