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

Author Question: A toy rocket with a mass of 300 g takes off in a vertical direction under the influence of gravity. ... (Read 131 times)

PhilipSeeMore

  • Hero Member
  • *****
  • Posts: 561
on: Jul 29, 2018
A toy rocket with a mass of 300 g takes off in a vertical direction under the influence of gravity. It burns fuel at the rate of 25 g/s. The exhaust speed of the gases is 80 m/s. What is the speed of the rocket at the end of 10 seconds?
 
  A)
 
  145 m/s
 
  B)
 
  480 m/s
 
  C)
 
  40 m/s
 
  D)
 
  0 m/s
 
  E)
 
  382 m/s

Question 2

Far from their source, electromagnetic waves are
 
  A)
 
  elliptical waves.
  B)
 
  longitudinal waves.
  C)
 
  plane waves.
  D)
 
  spherical waves.
  E)
 
  circular waves.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

amit

  • Sr. Member
  • ****
  • Posts: 364
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


PhilipSeeMore

  • Member
  • Posts: 561
Reply 2 on: Jul 29, 2018
Gracias!

apple

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Rocket Physics Rocket Physics
Flame and gravity Flame and gravity
Fascial stretching techniques. (A) Cross-hand dual direction stretch. (B) Pin and stretch with the ... Fascial stretching techniques. (A) Cross-hand dual direction stretch. (B) Pin and stretch with the ...
Overview of lymphatic system structures and the general direction of lymph flow from the extremities ... Overview of lymphatic system structures and the general direction of lymph flow from the extremities ...
Mass Wasting Forms Mass Wasting Forms
Gravitational Force Due to a Distribution of Mass problem 2 Gravitational Force Due to a Distribution of Mass problem 2
Video: New DNA Strand Replication

For a complete list of videos, visit our video library