Circular Star

September 8th, 2010 |

Author: admin

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US FLAG 34 CIRCULAR STAR CIVIL WAR FLAG 1861-1863 3X5 FT PRINT POLYESTER FLAG

US $5.99

22d 7h 20m

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Circular Star

Mass of the object the star is orbiting?

You observe a star orbiting the galactic center at a speed of 1500 km/s in a circular orbit with a radius of 24 light-days.

What would your estimate be for the mass of the object that the star is orbiting?

Look for step by step, I keep getting the system of units confused. THANKS!

I keep getting the system of units confused.

Some advice:

1) You have to put everything in the same units, and only at the end do you convert to the units you want (for example, you may want in pounds instead of kilograms). You have things in kilometers per second -- you have to convert to meters per second; you have a radius (distance) written in light-days -- you have to convert it to meters (you have to know the speed of light and you have to know how many seconds there is in one day).
You have to put everything in the same units because constants like the universal gravitational constant G is USUALLY written in International System units (the unit for distance is meter, the unit for time is second, the unit for mass is kilogram).

2) Since it's a circular orbit, you have to use the relation for the centripetal acceleration in circular motion (you already know that from classes and it's in your school books).

Come back and give more details about where exactly you're stuck and we'll help out.

You'll learn more from knowing exactly what steps you're doing wrong than just seeing how someone gave the full resolution and copying it -- there is usually more than one way to solve a problem, and "memorizing" one does not mean you'll learn enough to solve others.

No items matching your keywords were found.

US FLAG 34 CIRCULAR STAR CIVIL WAR FLAG 1861-1863 3X5 FT PRINT POLYESTER FLAG

US $5.99

22d 7h 20m

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No items matching your keywords were found.

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Sir Stamford At Circular Quay

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Sir Stamford At Circular Quay > SYD > 93 Macquarie Street > Sydney > NW > 2000>Location. This city center hotel is located in Sydney, close to Customs House, Museum of Sydney, and Government House. Also nearby are Sydney Opera House and Circular Quay. Features. Sir Stamford At Circular Quay has an outdoor pool, a sauna, and a fitness facility. Business amenities at this 5.0 star property include high speed Internet access and business services. Sir Stamford At Circular Quay has a bar/lounge. Additional amenities include multilingual staff and a safe deposit box at the front desk. Guestrooms. Sir Stamford At Circular Quay has 105 guestrooms. Televisions are equipped with cable television channels . Guestrooms provide direct dial phones and in room safes. Bathrooms offer hair dryers. Additional amenities include climate control, air conditioning, and desks. In addition, amenities available on request include wake up calls. All guestrooms at Sir Stamford At Circular Quay are non smoking. >The preferred airport for Sir Stamford At Circular Quay is Sydney, NSW (SYD Kingsford Smith Intl.) 9.3 km / 5.8 mi. Distances are calculated in a straight line from the property’s location to the point of interest or airport and may not reflect actual travel distance. Distances are displayed to the nearest 0. 1 mile and kilometre.