Have 2 Questions: Measure Perihelion of Venus & Pendulum in Elevator

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Measuring the perihelion advance of Venus is challenging due to the influence of gravitational perturbations from other planets and relativistic effects that complicate precise calculations. In the scenario of a pendulum in a falling elevator, the pendulum would remain stationary relative to the elevator, as both are in free fall, creating a weightless environment. The discussion emphasizes that these questions may not be suitable for a relativity-focused forum, suggesting they are more appropriate for a general physics or homework section. Participants note the importance of considering factors like air resistance and initial conditions for accurate analysis. Overall, the conversation highlights the complexities of gravitational interactions and motion in non-inertial reference frames.
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URGENT: Have 2 questions

I got 2 questions, if anyone can answer one or both of them, ill appreciate it. thanks!
8. Why is it difficult to measure the perihelion advance of the planet Venus?
9. You are in an elevator at the top of the CN tower. You have a pendulum
and allow it to oscillate. The elevator falls to the ground after someone
cuts its support cables. What does the pendulum do? Ignore the air
resistance acting on the pendulum and the elevator.
 
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If these are homework problems, you should post them in one of the homework forums, not here (they have nothing to do with relativity, anyway).
 
i thought these questiosn belonged to the relativity section bout space time and such...sry
 
I believe u would need to consider air resistance and the position at which the pendulum was at.
 

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