This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An unfueled 1000-kg experimental rocket sled at rest on level frictionless rails is loaded with 50 ... (Read 393 times)

magmichele12

  • Hero Member
  • *****
  • Posts: 559
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

akemokai

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


magmichele12

  • Member
  • Posts: 559
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

xiazhe

  • Member
  • Posts: 331
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Testing Visual Fields by Confrontation: The nurse and patient should be approximately at an eye to e Testing Visual Fields by Confrontation: The nurse and patient should be approximately at an eye to e
Dame's Rocket Dame's Rocket
Level II HCPCs Codes Cont. Level II HCPCs Codes Cont.
The experimental system that permits observation of rotation in the F1 component of F1F0 ATP (c) The experimental system that permits observation of rotation in the F1 component of F1F0 ATP (c)
Experimental demonstration of respiratory control Experimental demonstration of respiratory control
Many U.S. regions under threat due to changes in sea level Many U.S. regions under threat due to changes in sea level
Video: Bone elongation - processes at the epiphyseal plate

For a complete list of videos, visit our video library