(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A 1600 kg object is initially at rest 400 km above the earth’s surface. The object falls straight

down and generates 8.3 x10^8J of heat energy while descending to an altitude of 100 km.

2. Relevant equations

KE+PE+HEAT=KE+PE+HEAT

3. The attempt at a solution

i made PE at 100km above earth and got 1600x9.81x300000=800V^2+8.3x10^2J

i got V=2200 but the answer should be 2100 about last 2 digits can be off by a bit im not sure where i go wrong

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# Homework Help: Kinetic energy due to heatloss

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