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

Author Question: A student uses a plumb bob to verify that the doorjamb in a car is vertical. As the car pulls away ... (Read 82 times)

Themember4

  • Hero Member
  • *****
  • Posts: 538
on: Jul 29, 2018
A student uses a plumb bob to verify that the doorjamb in a car is vertical. As the car pulls away from a stop, the student observes that the string now makes an angle  with the doorjamb. What is the acceleration of the car?
 
  A) g sin
  B) g cos
  C) g tan
  D) g
  E)

Question 2

Air is flowing through a rocket nozzle. Inside the rocket the air has a density of 5.25 kg/m3 and a speed of 1.20 m/s. The interior diameter of the rocket is 15.0 cm. At the nozzle exit, the diameter is 2.50 cm and the density is 1.29 kg/m3.
 
  What is the speed of the air when it leaves the nozzle? A) 176 m/s
  B) 29.3 m/s
  C) 88.0 m/s
  D) 35.2 m/s
  E) 343 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

welcom1000

  • Sr. Member
  • ****
  • Posts: 298
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

A


Themember4

  • Member
  • Posts: 538
Reply 2 on: Jul 29, 2018
:D TYSM

elyse44

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

An example of vertical evolution: the horse An example of vertical evolution: the horse
Where mangrove diversity is high, mangrove species show clear patterns of vertical zonation relative Where mangrove diversity is high, mangrove species show clear patterns of vertical zonation relative
Thermodynamic Diagrams and Vertical Temperature Profiles Thermodynamic Diagrams and Vertical Temperature Profiles
Thermodynamic Diagrams and Vertical Temperature Profiles Thermodynamic Diagrams and Vertical Temperature Profiles
Collage of Student Faces Collage of Student Faces
An eager graduate student at Carleton, counts geese in the marshes off the Ottawa river. In ... An eager graduate student at Carleton, counts geese in the marshes off the Ottawa river. In ...
Video: TRH/TSH/Thyroid hormone

For a complete list of videos, visit our video library