Physics, 19.09.2019 16:20 lol15arec001
The gaia satellite data release 2 measured the parallaxes of stars to an accuracy of better than 20 mas (a milliarcsecond, mas, is a thousandth of an arcsecond, which is on 3600th of a degree). to what distance, in parsecs, can we measure the largest parallax error stars with a distance error of better than 10%? you can use the general equation for error: σy=|dy/dx|σx, where σx is the measured error and σy is the error in the calculated value.
Answers: 3
Physics, 21.06.2019 18:30
If a textbook weighs 37.2 n on venus, and the book has a mass of 4.4 kg, what is the strength of gravity on venus? 8.9 m/s28.9 m/si don't have enough information,9.8 m/s2
Answers: 1
Physics, 21.06.2019 22:30
The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage
Answers: 2
Physics, 22.06.2019 07:50
Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?
Answers: 1
The gaia satellite data release 2 measured the parallaxes of stars to an accuracy of better than 20...
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