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Author Question: The proton is made up of which one of the following quark combinations (up, down, strange, charm, ... (Read 220 times)

bucstennis@aim.com

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The proton is made up of which one of the following quark combinations (up, down, strange, charm, top, bottom)?
 
  A) ddu B) ttb C) bst D) uud E) udd

Question 2

A solid wood door, 90.0 cm wide by 2.00 m tall has a mass of 35.0 kg. It is open and at rest.
 
  A small 500-g ball is thrown perpendicular to the door with a speed of 20.0 m/s and hits the door 60.0 cm from the hinged side. The ball rebounds with a speed of 16.0 m/s along the same line. What is the angular speed of the door just after the collision with the ball?
  A) 0.127 rad/s
  B) 0.925 rad/s
  C) 1.14 rad/s
  D) 2.28 rad/s
  E) 4.57 rad/s


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Joy Chen

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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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bucstennis@aim.com

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Both answers were spot on, thank you once again




 

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