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Explain what synchronous rotation is. What is it caused by? Give an example. Answer: Synchronous rotation...
The tidal forces between the Earth and the Moon slowed down the Moon’s rotation about its own axis until the rotation period became equal to the Moon’s orbital period around the Earth as we observe today.
The tidal forces between the Earth and the Moon slowed down the Moon's rotation about its own axis until the rotation period became equal to the Moon's orbital period around the Earth as we observe today. The same effect is also slowing down the Earth's rotation about its own axis and increasing the separation \(D\) between the Moon and the Earth at a rate of \(\Delta D / \Delta t=3.8 \mathrm{~cm}\) per year. In this problem, you can ignore the...
In Lecture 4, we discussed Kepler’s third law relatingthe orbital period of a planet (p) to...
In Lecture 4, we discussed Kepler’s third law relatingthe orbital period of a planet (p) to the semi-major axis (orbital distance, a) of its orbit(p2= a3). We can apply this law as long the object orbits the Sun or another object of the same mass, and the units of orbital period are in (Earth) years and the orbital distance is in Astronomical Units(AU). [1AU is equal to the distance between the Earth and the Sun]. [Note: Newton extended this law...
se 4: Phases of the Moon Everyone has seen the Moon, which is a natural satellite...
se 4: Phases of the Moon Everyone has seen the Moon, which is a natural satellite that orbits the Earth. As the Moon rotates around the Earth it is exposed to various amounts of light from the Sun. The reason for this is simple, the Moon at night because it is reflecting light produced by the Sun and because the Earth is slightly out of the direct line of sight between the Moon and Sun. If it were not, a...
Question 7 (0.5 points) What causes the Moon to move about 12° across the sky from...
Question 7 (0.5 points) What causes the Moon to move about 12° across the sky from one night to the next (at the same time of night, of course)? O Because the Earth is turning on its axis. O Because the Moon is moving in its orbit. The Sun has also moved 15° across the sky and gravitationally pulls the Moon with it. The celestial sphere the Moon is attached to has moved 15°. O It is an optical illusion....
Page 3 of 6 10. Which of the following is correct? a) The rotation axes of...
Page 3 of 6 10. Which of the following is correct? a) The rotation axes of planets are always perpendicular to their orbital plane (the ecliptic). b) No planet's orbital inclination is more than 20 degrees from the ecliptic. c) Planets orbits are circular. d) Planets always rotate and revolve in the same direction. 11. Which of the following is not a real difference between asteroids and comets? a) Asteroids are made mostly of rock and comets are made mostly...
A synchronous satellite, which always remains above the same point on a planet's equator, is put...
A synchronous satellite, which always remains above the same
point on a planet's equator, is put in orbit around Mars so that
scientists can study a surface feature. Mars rotates once every
24.6 h. Use the data of this table to find the altitude of the
satellite. Please show how you figured this out step by step!
Useful Planetary Data Mean 10-19 ..3 Mean Distance Radius (m Mass (kg) Period (s) Body from Sun (m) 2.48 X 10 7.60 x...
Table 13.1 Solar system data (in SI units and relative to Earth) Orbit eccentricity Mass Equatorial...
Table 13.1 Solar system data (in SI units and relative to Earth) Orbit eccentricity Mass Equatorial radius semimajor axis period (a^) (years) 30 Sun 2.0 X 10 3.3 × 10 Mercury 3.30 X 1023 Venus 4.87 X 1024 Earth Mars Jupiter 1.90 x 1027318 Saturn 5.68 × 1026 95.2 Uranus 8.68 X 1014.5 Neptune 1.02 x 102617.1 Pluto 2.440 ×106 6.052 X 106 6.378 X 106 3.396 × 106 5.79×1010 1.082 x 1011 1.496 × 1011 2.279 ×1011 11.2 7.783...
please help with ALL a-g thanks in advance:) HW 6.1. Briefly answer the following questions. a)...
please help with ALL a-g
thanks in advance:)
HW 6.1. Briefly answer the following questions. a) A clock is mounted on the wall. As you look at it, what is the direction of the angular velocity vector of the second hand? What is the value of the angular acceleration of the second hand? b) If the angular acceleration of a rigid body is zero, what is the functional form of the angular velocity? c) What if another planet the same...
Physics Lab Assignment This particular discovery is also an example of how those who deserve an...
Physics Lab Assignment This particular discovery is also an example of how those who deserve an award sadly are not always the ones who receive it. Read the following passage focusing your attention on the scientific procedures and scientific abilities you have been developing throughout the course. The discovery of pulsars –rotating neutron stars that generate regular pulses of radiation at their spin rate- was fortuitous. A group of astrophysicists from Cambridge University lead by Anthony Hewish was looking for...
The discovery of pulsars –rotating neutron stars that generate regular pulses of radiation at their spin...
The discovery of pulsars –rotating neutron stars that generate regular pulses of radiation at their spin rate- was fortuitous. A group of astrophysicists from Cambridge University lead by Anthony Hewish was looking for quasars (these are extremely bright, compact and remote objects that emit up to a thousand times as much light as our entire galaxy). For that purpose the research group designed a radio-telescope that was built on the flat fields surrounding Cambridge in central England. This telescope did...
se 4: Phases of the Moon Everyone has seen the Moon, which is a natural satellite that orbits the Earth. As the Moon rotates around the Earth it is exposed to various amounts of light from the Sun. The reason for this is simple, the Moon at night because it is reflecting light produced by the Sun and because the Earth is slightly out of the direct line of sight between the Moon and Sun. If it were not, a...
Question 7 (0.5 points) What causes the Moon to move about 12° across the sky from one night to the next (at the same time of night, of course)? O Because the Earth is turning on its axis. O Because the Moon is moving in its orbit. The Sun has also moved 15° across the sky and gravitationally pulls the Moon with it. The celestial sphere the Moon is attached to has moved 15°. O It is an optical illusion....
Page 3 of 6 10. Which of the following is correct? a) The rotation axes of planets are always perpendicular to their orbital plane (the ecliptic). b) No planet's orbital inclination is more than 20 degrees from the ecliptic. c) Planets orbits are circular. d) Planets always rotate and revolve in the same direction. 11. Which of the following is not a real difference between asteroids and comets? a) Asteroids are made mostly of rock and comets are made mostly...
A synchronous satellite, which always remains above the same
point on a planet's equator, is put in orbit around Mars so that
scientists can study a surface feature. Mars rotates once every
24.6 h. Use the data of this table to find the altitude of the
satellite. Please show how you figured this out step by step!
Useful Planetary Data Mean 10-19 ..3 Mean Distance Radius (m Mass (kg) Period (s) Body from Sun (m) 2.48 X 10 7.60 x...
Table 13.1 Solar system data (in SI units and relative to Earth) Orbit eccentricity Mass Equatorial radius semimajor axis period (a^) (years) 30 Sun 2.0 X 10 3.3 × 10 Mercury 3.30 X 1023 Venus 4.87 X 1024 Earth Mars Jupiter 1.90 x 1027318 Saturn 5.68 × 1026 95.2 Uranus 8.68 X 1014.5 Neptune 1.02 x 102617.1 Pluto 2.440 ×106 6.052 X 106 6.378 X 106 3.396 × 106 5.79×1010 1.082 x 1011 1.496 × 1011 2.279 ×1011 11.2 7.783...
please help with ALL a-g
thanks in advance:)
HW 6.1. Briefly answer the following questions. a) A clock is mounted on the wall. As you look at it, what is the direction of the angular velocity vector of the second hand? What is the value of the angular acceleration of the second hand? b) If the angular acceleration of a rigid body is zero, what is the functional form of the angular velocity? c) What if another planet the same...
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