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Author Question: An unfueled 1000-kg experimental rocket sled at rest on level frictionless rails is loaded with 50 ... (Read 392 times)

magmichele12

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on: Jul 28, 2018
An unfueled 1000-kg experimental rocket sled at rest on level frictionless rails is loaded with 50 kg of propellant. It exhausts the propellant in a 20 s burn.. The rocket moves at 160 m/s after the burn. What average force is experienced by the rocket during the burn?
 a. 0.80  104 N
  c. 0.60  104 N
  b. 0.75  104 N
  d. 0.35  104 N

Question 2

Charge A has 10 electric field lines coming out, charge B has 20 lines coming out, and charge C has 30 lines coming in. Which pair of these charges will have the largest force between them if placed one cm apart?
 a. A and B
  c. More information is needed. b. B and C
  d. C and A


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akemokai

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Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


magmichele12

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Reply 2 on: Jul 28, 2018
Gracias!

jackie

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

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