Physics, 07.03.2020 00:18 heavenwagner
A comet is in an elliptical orbit around the Sun. Its closest approach to the Sun is a distance of 4.5 × 1010 m (inside the orbit of Mercury), at which point its speed is 9.2 × 104 m/s. Its farthest distance from the Sun is far beyond the orbit of Pluto. What is its speed when it is 6 × 1012 m from the Sun? (This is the approximate distance of Pluto from the Sun.)
Answers: 1
![E_{f}=E_{i}+W\\K_{f}+U_{f}=K_{i}+U_{i}+0\\1/2mv_{f}^{2}+\frac{-GMm}{d_{2}}=1/2mv_{i}^{2}+\frac{-GMm}{d_{i}} \\v_{f}=\sqrt{v_{i}^2+2GMm[1/d_{2}-1/d_{1}]}](/tpl/images/0536/7247/58a15.png)
![v_{f}=\sqrt{(9.2*10^{4}m/s )^2+2(6.7*10^{-11})(1.98*10^{30})[1/6*10^{12}-1/4.5*10^{10}]} \\v_{f}=51109.88m/s](/tpl/images/0536/7247/df6c6.png)
Another question on Physics
Physics, 21.06.2019 18:00
What is the magnification of a real image if the image is 10.0 cm from a mirror and the object is 50.0 cm from the mirror ? use the equation m=-di/do. a. -5.0 b. 5.0 c. 0.20 d. -0.20
Answers: 1
Physics, 22.06.2019 12:00
For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up
Answers: 2
Physics, 22.06.2019 14:40
14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is
Answers: 1
Physics, 22.06.2019 18:00
Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block
Answers: 1
You know the right answer?
A comet is in an elliptical orbit around the Sun. Its closest approach to the Sun is a distance of 4...
Questions
Mathematics, 21.05.2020 18:02
Mathematics, 21.05.2020 18:02
Mathematics, 21.05.2020 18:02
Mathematics, 21.05.2020 18:02
Biology, 21.05.2020 18:02
History, 21.05.2020 18:02
Mathematics, 21.05.2020 18:02
Mathematics, 21.05.2020 18:02
Mathematics, 21.05.2020 18:02
Computers and Technology, 21.05.2020 18:02
Health, 21.05.2020 18:02
Physics, 21.05.2020 18:02
Mathematics, 21.05.2020 18:02
