Answer:
duplication being slightly more expensive.
Explanation:
Very high-energy objects and events spit out very high-energy photons, so the instrument you need in order to detect them is the X-ray telescope. <em>(C) </em>
Inconveniently, X-ray telescopes only work when they're up in orbit, because X-rays get seriously soaked up in Earth's atmosphere, and most of them never make it down to the surface ... (lucky for us !) .
Answer:-6800J
Explanation: 8.0m x 850N = 6800
Rewritten as a negative when brake/stop -6800
<span>Days and nights are equal in length everywhere.(gradpoint)</span>
Answer:to relate the size of the box to the temperature of air within the box
Explanation:
