speed equals orbital radius times the orbital angular speed The moon is 384,000 km away from the Earth. where #T# is the lunar orbital period, and #r# the orbital radius of moon (the moon follows an ellipse but the eccentricity is small enough that you can treat it as a circle.)Earth is the third planet from the Sun and the fifth largest planet in the Solar System with the highest density. Click for even more facts and information. Soon after, the Greek astronomer Ptolemy proposed the idea that planets were in tiny spheres and made circles as they orbited Earth.A meteoroid, heading straight for Earth, has a speed of 14.8 km/s relative to the center of Earth as it crosses our moon's orbit, a distance of 3.84 × 108 m from the earth's center. You can neglect the effects of the moon, Earth's atmosphere, and any motion of the earth.Two meteoroids are heading for earth. Their speeds as they cross the moon's orbit are 2.0 km/s. Note 1. Original distance from earth center to each meteroid is r Note 2. Since the location of the moon is not mentioned, we ignore the PE of moon-meteoids.Observers on Earth might notice that the moon essentially keeps the same side facing our planet as it passes through its orbit. This may lead to the The moon is not the only satellite to suffer friction with its parent planet. Many other large moons in the solar system are tidally locked with their partner.
Earth Facts | Surface, Atmosphere, Satellites, History & Definition
In brief: Researchers believe that one of the meteoroids that impacted the moon during the most recent lunar eclipse was small in size but came in so fast that it generated a tremendous punch. That's not a very large rock to generate that sort of energy (and a flash visible from Earth) until you...these meteoroids hit the Earth's atmosphere were calculated. If a meteoroid enters the Earth's atmosphere, a. meteor will be produced as it ablates, which can be studied from. and 2 relate to the two orbits that are being compared. Most au-. thors considered the orbits to be similar if their value of...(a) The first meteoroid is heading straight for earth. What is its speed of impact? (b) The second misses the earth by 4500 km.That the moon landings were hoaxed by the US government to assert their victory in the space race In this list I have presented some of the proposed evidence to suggest that the moon landings were hoaxes. The belt is held in place by Earth's magnetic field and stays perpetually in the same place.
Chapter 13 Flashcards | Quizlet
But the moon has no option due to absence of atmosphere, all meteoroids end up being meteorites. Also, through gravitational assists the earth often flings certain objects heading towards it to the moon, causing crater formation on the nearby face.Two crossed lines that form an 'X'. It indicates a way to close an interaction, or dismiss a When meteoroids strike the surface of the moon, tiny droplets of water get released in the form of vapor Essentially, when debris from a comet in the form of a meteoroid hits the moon, it vaporizes on impact.The Moon is Earth's largest natural satellite. We usually see it in the night sky. Some other planets also have moons or natural satellites. Our moon is about a quarter the size of the Earth. Because it is far away it looks small, about half a degree wide.(a) The first meteoroid is heading straight for earth. What is its speed of impact? (b) The second misses the earth by 6000 km. You can find out how far away the moon's orbit is and what the earth's radius is then calculate the amount of potential energy that goes to increase the kinetic energy...2 Hawking believes we can pass/overcome all the problems and colonise space. 3 Some scientists believe a huge asteroid or comet could extract/wipe out life on Earth. 4 There are many options for colonising space; the possibilities are endless/continuous.
(a) 0.5m(v2^2 - v1^2) = GMm*[1/R - 1/d] where R is radius of earth; d is distance of moon, M is mass of earth and m mass of meteoroid and v1 is initial pace and v2 that at have an effect on
or v2^2 = 3500^2 + 2*(6.67*10^-11)*(6*10^24)*10^-6[1/6.37 - 1/384] = 0.1225*10^8 + 1.236*10^Eight or
v2^2 = 1.36*10^Eight or v2 = 1.16*10^4 m/s = 11.6 km/s
(b) 0.5m(v2^2 - v1^2) = GMm*[1/(R+6*10^6) - 1/d] where R is radius of earth; d is distance of moon, M is mass of earth and m mass of meteoroid and v1 is initial velocity and v2 that at impact
or v2^2 = 3500^2 + 2*(6.67*10^-11)*(6*10^24)*10^-6[1/12.38 - 1/384] = 0.1225*10^8 + 0.626*10^8 or
v2^2 = 0.7482*10^8 or v2 = 0.865*10^4 m/s = 8.65 km/s
Physics Archive | April 27, 2017 | Chegg.com
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