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Author Question: The horizontal and vertical components of the initial velocity of a football are 16 m/s and 20 m/s ... (Read 225 times)

nmorano1

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on: Jul 29, 2018
The horizontal and vertical components of the initial velocity of a football are 16 m/s and 20 m/s respectively. If there is no air resistance, how long does it take the football to reach the top of its trajectory?
 
  A) 1.0 s
  B) 2.0 s
  C) 3.0 s
  D) 4.0 s
  E) 5.0 s

Question 2

A 1.0-kg aluminum ingot is heated from 0C to 100C. By what amount does its mass change? The specific heat of aluminum is 900 J/kg  K. (c = 3.0  108 m/s)
 
  A) Its mass does not change.
  B) Its mass increases by 0.50  10-12 kg
  C) Its mass decreases by 0.50  10-12 kg
  D) Its mass increases by 1.0  10-12 kg
  E) Its mass decreases by 1.0  10-12 kg
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l.stuut

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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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nmorano1

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Reply #2 on: Jul 29, 2018
Thank you!


l.stuut

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Reply #3 on: Jul 29, 2018
Always glad to help...


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