Chapter 07, Probles 003 On August 10, 1972,a large meteorite skipped across the

Question

Chapter 07, Probles 003 On August 10, 1972,a large meteorite skipped across the atmosphere above the western Unted States and western Canada, uch ike a stone skipped across water. The accompanying fireball was so bright that it could be seen in the daytime sky and was brighter than the uual meteorte trail. The meteorne's mass was about 4.4 x 10 kg: it's speed was about 12 km/s, Had it entrred the atmosphere vertically, it would have hit Earth's surface with about the same speed. (a) Calolate the meteonte's loss of energy (as a postive mumiber, in youles) that would have been associated with the vertical impact. (b) Express the enargy as a multbple of the explosive energy of 1 megaton of TNT, which is 4.2 x 1015 ), (c) The energy associated with the atomic bomb explosion over Hiroshima was equivalent to 13 kiotons or TNT. To how many Hiroshima bombs would the meteorite impact have been (a) Number tb) Number (c) Number Click if yeu would like te Show work for this question: 0sen Show wock s o of 12

Explanation / Answer

(a) K = (1/2)*mv^2 = (1/2)(4.4 × 10^6 kg)(1.7 × 10^4 m/s)^2 = 6.358 × 10^14 J

(b) (6.358 × 10^14 J)/[(4.2 × 10^15 J)/ MT] = 0.15 MT.

(c) (0.15 MT)/(0.013 MT) = 11.54.

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.