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Author Question: Rita raises a 10kg package to a height of 2.5 m in 2.0 s. (a) How much work did she do on the ... (Read 70 times)

storky111

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on: Jul 29, 2018
Rita raises a 10kg package to a height of 2.5 m in 2.0 s.
 
  (a) How much work did she do on the package?
  (b) How much power was expended on the package?
  (c) If she were to raise the package in 1.0 s rather than 2.0 s, how do the work and power change?

Question 2

Express -40C in F.
 
  A) -72F B) 4.4F C) -40F D) -54F


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debra928

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Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 0.25 Kj (b) 0.12 kW (c) the same work, but the power doubles

Answer to Question 2

C


storky111

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Reply 2 on: Jul 29, 2018
Wow, this really help

dawsa925

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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