1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lana [24]
3 years ago
13

A wind-tunnel experimentis performed on a 1/25scale model of a supersonic aircraft. The prototype aircraft flies at 450 m/s in c

onditions where the speed of sound is 250 m/s and the air density is 0.89kg/m3. The model aircraft is tested in a wind tunnel in which the speed of sound is 280m/s and the air density is 0.56kg/m3. The drag force on the model is 100N. What speed must the flow in the wind tunnel be for dynamic similitude, and what is the drag force on the prototype?

Physics
1 answer:
KengaRu [80]3 years ago
4 0

Answer: V = 504m/a

F = 4N

Explanation: please find the attached file for the solution

You might be interested in
Questions 15 out of 20
Olin [163]

Answer:

D

Explanation:

7 0
3 years ago
A region of space that contains no matter
sammy [17]
Conduction. Any material that easily allows heat to move through it. Vacuum. A region of space that contains no matter. Solid.
3 0
3 years ago
Read 2 more answers
A block of mass m = 4.8 kg slides from left to right across a frictionless surface with a speed Vi=7.3m/s. It collides with a bl
nirvana33 [79]

Answer:

The speed of the 11.5kg block after the collision is V≅4.1 m/s

Explanation:

ma= 4.8 kg

va1= 7.3 m/s

va2= - 2.5 m/s

mb= 11.5 kg

vb1= 0 m/s

vb2= ?

vb2= ( ma*va1 - ma*va2) / mb

vb2= 4.09 m/s ≅ 4.1 m/s

7 0
3 years ago
A car’s tire rotates 5.25 times in 3 seconds. What is the tangential velocity of the tire?
Lena [83]

The tangential velocity of the car's tire is the product of the angular velocity and radius of the car's tire which is 11(r) m/s.

<h3>Angular velocity of the tire</h3>

The angular velocity of the tire is the rate of change of angular displacement of the tire with time.

The magnitude of the angular velocity of the tire is calculated as follows;

ω = 2πN

where;

  • N is the number of revolutions per second

ω = 2π x (5.25 / 3)

ω =  11 rad/s

<h3>Tangential velocity of the tire</h3>

The tangential velocity of the car's tire is the product of the angular velocity and radius of the car's tire.

The magnitude of the tangential velocity is caculated as follows;

v = ωr

where;

  • r is the radius of the car's tire

v = 11r m/s

Learn more about tangential velocity here: brainly.com/question/25780931

4 0
2 years ago
2 When a cube of hot metal is placed in a beaker of cold water, the temperature of the water -
jek_recluse [69]
The answer to this is B
4 0
3 years ago
Other questions:
  • How much is one degree Celsius in temperature change ?
    9·1 answer
  • Obviously, we can make rockets to go very fast, but what is a reasonable top speed? assume that a rocket is fired from rest at a
    14·1 answer
  • While driving, your car has an initial position of 3.2 m, an initial velocity of -8.4 m/s, and
    12·1 answer
  • A bodybuilder loads a bar with 550 Newtons (~125 pounds) of weight and pushes the bar over her head 10 times. Each time she lift
    11·2 answers
  • A truck slows from a velocity of 34 m/s to a stop in 50 m. What was the<br> truck's acceleration? *
    8·1 answer
  • represents the space-time, speed-time and acceleration-time graphs for a ball pulled upwards with a speed of 10 m / s from 1 met
    6·1 answer
  • A fixed amount of ideal gas is kept in a container of fixed volume. The absolute pressure P, in pascals, of the gas is plotted a
    14·1 answer
  • What are three examples of constructive forces
    15·1 answer
  • The force of friction depends upon​
    14·2 answers
  • Use the drop-down menus to explain how noise cancellation works. Waves with similar are created to interfere with unwanted sound
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!