timate the distance between Venus and Earth in km and AU. Express your answer using two significant figures.

How long (in Earth-Years) does it take Saturn to orbit the Sun? Use these values of (average) distance to the Sun. Venus: .72 A.U. Saturn: 9.5 A.U. Give your answer in (Earth) years to the correct number of significant figures.

Calculate the period T of a planet whose orbit has a semimajor axis of 2.4 AU. y

What is the orbital period (in years) of a Kuiper Belt Object (KBO) orbiting the Sun at 43.8 AU? Гyears

The International Space Station (ISS) orbits the Earth once every 7.34 hours. If the radius of the Earth is 3,958.8 miles and the mass of earth is 5.972 x 10 24 kg, calculate the altitude of the ISS above the surface of the Earth, in miles. Use G=6.674 x 10 -11 Nm2/kg2. Write your answer in pure numbers, for example, 4567.8. Keep at least on digit after the decimal point.

How long, deep, and wide would a terrestrial chasm have to be to have the same proportions relative to the Earth that Valles Marineris has to Mars?

The average distance from Earth to the sun is defined as one astronomical unit (AU). If an asteroid orbits the Sun in 1/3 of a year in a circular orbit, what is the asteroid's distance from the Sun in AU? Round your answer to 2 significant figures.

The International Space Station (ISS) orbits the Earth once every 7.2 hours. If the radius of the Earth is 3,958.8 miles and the mass of earth is 5.972 x 10 kg, calculate the altitude of the ISS above the surface of the Earth, in miles. Use G=6.674 x 10 11 Nm2/kg?. Write your answer in pure numbers, for example, 4567.8. Keep at least on digit after the decimal point. 24

A)At what altitude would a geostationary sattelite need to be above the surface of Mars? Assume the mass of Mars is 6.39 x 1023 kg, the length of a martian solar day is 24 hours 39minutes 35seconds, the length of the sidereal day is 24hours 37minutes 22seconds, and the equatorial radius is 3396 km. The answer can be calculated using Newton's verison of Kepler's third law.

At its closest approach to Earth, Mars is 57.50 million kilometers away. How long (in minutes) would a radio signal sent from a future manned mission to Mars take to travel to Earth? (distance = speed x time) [55]