- 20 You Have A Wire 1 100 M Orbiting Earth Perpendicular To Its Surface At A Distance Of 250 Km Above Its Surface 1 (28.25 KiB) Viewed 51 times
20). You have a wire (1 = 100 m) orbiting Earth perpendicular to its surface at a distance of 250 km above its surface.
-
answerhappygod
- Site Admin
- Posts: 899604
- Joined: Mon Aug 02, 2021 8:13 am
20). You have a wire (1 = 100 m) orbiting Earth perpendicular to its surface at a distance of 250 km above its surface.
20). You have a wire (1 = 100 m) orbiting Earth perpendicular to its surface at a distance of 250 km above its surface. How much voltage (EMF) can you get from this wire via the Earth's magnetic field (B = 50 PT)? You'll want to look back to Chapter 6 in your text, specifically section 6.6. 21). Find the color of a photon given off from a hydrogen-like atom of oxygen, going from the 3rd excited state (n = 4) to the ground state. 22). The James Webb telescope has an objective focal length of 131.4 m. If you were able to put an eyepiece in it, what would the focal length have to be to give a magnification of 2500? At this magnification, how large would a galaxy that is 200,000 light years across and 25 million light years away appear to the eye?
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!