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

Author Question: A 1 500-kg experimental rocket sled at rest on level frictionless rails is loaded with 55.0 kg of ... (Read 720 times)

ENagel

  • Hero Member
  • *****
  • Posts: 540
on: Jul 28, 2018
A 1 500-kg experimental rocket sled at rest on level frictionless rails is loaded with 55.0 kg of propellant. It exhausts the propellant in a 20-s burn. The rocket moves at 155 m/s after the burn. What average force is experienced by the rocket during the burn?
 a. 4.26E+2 N
  b. 1.16E+4 N
  c. 1.21E+4 N
  d. 1.94E+2 N
  e. 2.33E+5 N

Question 2

A 1 200-kg experimental rocket sled on level frictionless rails is loaded with 55.0 kg of propellant. It exhausts the propellant in a 20-s burn. If the rocket, initially at rest, moves at 155 m/s after the burn, what impulse is experienced by the rocket sled?
 a. 8.5E+3 kg/m/s
  b. 1.3E+5 kg/m/s
  c. 1.9E+5 kg/m/s
  d. 8.5E+5 kg/m/s
  e. 2.1E+5 kg/m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

gabrielle_lawrence

  • Sr. Member
  • ****
  • Posts: 353
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

c


ENagel

  • Member
  • Posts: 540
Reply 2 on: Jul 28, 2018
:D TYSM

olderstudent

  • Member
  • Posts: 339
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Characteristics of a Neuron at Rest and During the Different Phases of an Action Potential Characteristics of a Neuron at Rest and During the Different Phases of an Action Potential
Controlled Scientific Experiments Scientists use experimental research to test hypotheses Controlled Scientific Experiments Scientists use experimental research to test hypotheses
How much the temperature will rise depends on many factors that affect the level of GHG emission How much the temperature will rise depends on many factors that affect the level of GHG emission
Rising Sea Level Rising Sea Level
Sea-Level Pressure Sea-Level Pressure
A polysome consists of an mRNA molecule loaded with many ribosomes, all engaged in translation. A polysome consists of an mRNA molecule loaded with many ribosomes, all engaged in translation.
Video: Corpus Callosum Animation

For a complete list of videos, visit our video library