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Author Question: In a police rifle test, a 15-g bullet traveling 213 m/s in a vertical direction suddenly buries ... (Read 159 times)

plus1

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on: Jul 29, 2018
In a police rifle test, a 15-g bullet traveling 213 m/s in a vertical direction suddenly buries itself in a 2.4-kg block of wood at rest directly above it. As a result, the bullet-block combination moves vertically upward.
 
  (a) Determine the velocity of the bullet-block combination just after the impact. (b) Determine the maximum height reached by the bullet/block combination. (c) Is kinetic energy conserved in this collision?

Question 2

When a spacecraft is launched from the earth toward the sun, at what distance from the earth will the gravitational forces due to the sun and the earth cancel?
 
  Earth's mass is 5.97  1024 kg, the sun's mass is 1.99  1030 kg, and the Earth-sun distance is 1.5  1011 m.
  A) 1.3  108 m
  B) 2.6  108 m
  C) 1.3  1010 m
  D) 2.6  1010 m
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ryhom

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Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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plus1

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Reply 2 on: Jul 29, 2018
:D TYSM

ricroger

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Reply 3 on: Yesterday
Gracias!

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