2. The period of orbit of Venus is 225 days. Determine its frequency of orbit in Hertz

90.   Which of the following is NOT a reason for the very earliest ancient development of Astronomy include:         b. Testing early theories of physics.   c. Developing a calendar.   d. Religious and cultural ceremonies.

According to Lunar Laser Ranging experiments the average distance LM from the Earth to the Moon is approximately 3.85 × 10° km. The Moon orbits the Earth and completes one revolution in approximately 27.5 days (a sidereal month). How can the mass of the Earth be calculated using the information above? Select the correct statements. Select one or more: O a. Use Newton's third law. O b. Use Newton's first law. c. Use Coulombs law. O d. Use Newton's second law.

1. Moon is at the distance 384400 km from Earth and orbits the Earth every ~28 days. If the radius of the Moon is 1737 km (consider it to be spherical), what is the area of the moon as measured by the observer on Earth? (Hint: Length contraction)

Calculate the period of a satellite orbiting the Moon, 91 km above the Moon's surface. Ignore effects of the Earth. The radius of the Moon is 1740 km. Express your answer using three significant figures and include the appropriate units. μΑ ? T = Value Units Submit Request Answer

19. Saturn’s moon Mimas has an orbital period of T= 82,800 s at a distance of d= 1.87 × 10^8 m from Saturn. Using Kepler's 3rd law listed below for mass to determine Saturn’s mass. You must show your calculations for credit.

Kepler's third law of planetary motion describes a relationship between the__ *   a, shape of orbit and the location of the Sun.   b. orbital velocity and position in orbit   c. distance from the Sun and length of year.   d. path of epicycle and position.

9, Which of the following achievements was been attributed to Isaac Newton:   a. Laws of Motion.   b. General Relativity.   c. Quantum Mechanics.   d. Geocentric Model for the Solar System.

12. Which of the following lists of people contains three people who each supported a heliocentric model of the Universe?   a. Copernicus, Kepler, Galileo.   b. Ptolemy, Tycho, Kepler.   c. Aristarchus, Plato, Ptolemy.   d. Aristotle, Ptolemy, Plato.

E16. The time separating high tides is 12 hours and 25 minutes. If high tide occurs at 3:10 p.m. one afternoon, a. At what time will high tide occur the next afternoon? b. When would you expect low tides to occur the next day