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
WARRIOR [948]
3 years ago
7

Given: The drag characteristics of a torpedo are to be studied in a water tunnel using a 1:5 scale model. The tunnel operates wi

th fresh water at 20°C, whereas the prototype torpedo is to be used in seawater at 15.6°C. To correctly simulate the behavior of the prototype moving with the velocity of 30 m/s, what velocity (in m/s) is required in the water tunnel?

Physics
1 answer:
Gnoma [55]3 years ago
4 0

Answer:

The velocity in the water tunnel is 128.717m/s

Explanation:

To find the result we need to Apply dynamic symiliraty, that is,

\frac{V_m I_m}{\upsilon_m}= \frac{VI}{\upsilon}

Where \upsilon_i is the kinematic viscosity, V the velocity and I the lenght.

To find the kinematic viscosity it is necessary search in the table with this properties (I attached it)

To this kind of fluids, the properties to 15.6°c (Seawater) and 20°c (Water)are:

\upsilon_m= 1.17*10^{-6}m^2/s (Seawater)

\upsilon_m = 1.004*10^{-6}m^2/s (Water)

Replacing,

\frac{V_m I_m}{\upsilon_m}= \frac{VI}{\upsilon}

Solving to V_m

V_m = \frac{I}{I_m}\frac{\upsilon_m}{\upsilon}V

V_m= \frac{5}{1} * \frac {1.004*10^{-6}}{1.17*10^{-6}} 30

V_m = 128.717m/s

The velocity in the water tunnel is 128.717m/s

You might be interested in
Do you get this ?????
Jet001 [13]

The first one is actually 10 times as big as the second one.

Because of their places, the first one means 6000, and the second one means 600.

8 0
3 years ago
A tiny boat is floating in a metal bucket. If you build a fire under the bucket ,how will most of the heat be transferred from t
Dimas [21]
The molecules will heat up and move faster, some evaporating and turning to gas, the toy boat will heat up if made of conducting materials but otherwise unchanged. The water will also start to boil.
7 0
2 years ago
Which statement describes steps involved in the production of hydroelectric power?
viktelen [127]

Answer:

Answer is D.......Falling water turns a turbine that helps generate electricity.

Explanation:

Hydropower plants capture the energy of falling water to generate electricity. A turbine converts the kinetic energy of falling water into mechanical energy. Then a generator converts the mechanical energy from the turbine into electrical energy.

4 0
3 years ago
Read 2 more answers
Signal words most often used in a chronological essay are
Nookie1986 [14]
<span>Chronological essays by the definition of a chronological meaning in order. There is an order in a specific writing. Like a history write up from a certain happening years ago.  It is different from procedural essays because these are essays who are giving instructions of certain set up to guide the person accordingly in doing something to make it more accurate. Like recipes, instructions in playing, etc. Example words that are used in chronological essays are first, second, third, fourth, fifth, next, after, then, lastly, finally, consequently, in addition, thus, therefore, however, etc.</span>
4 0
3 years ago
Read 2 more answers
Find the speed vfinal of the joined cars after the collision. mastering physics
Tanya [424]
<span>Px = 0 Py = 2mV second, Px = mVcosφ Py = –mVsinφ add the components Rx = mVcosφ Ry = 2mV – mVsinφ Magnitude of R = âš(Rx² + Ry²) = âš((mVcosφ)² + (2mV – mVsinφ)²) and speed is R/3m = (1/3m)âš((mVcosφ)² + (2mV – mVsinφ)²) simplifying Vf = (1/3m)âš((mVcosφ)² + (2mV – mVsinφ)²) Vf = (1/3)âš((Vcosφ)² + (2V – Vsinφ)²) Vf = (V/3)âš((cosφ)² + (2 – sinφ)²) Vf = (V/3)âš((cos²φ) + (4 – 2sinφ + sin²φ)) Vf = (V/3)âš(cos²φ) + (4 – 2sinφ + sin²φ)) using the identity sin²(Ď)+cos²(Ď) = 1 Vf = (V/3)âš1 + 4 – 2sinφ) Vf = (V/3)âš(5 – 2sinφ)</span>
6 0
3 years ago
Other questions:
  • Slow moving vehicles that travel at a speed less than ___ mph will have an orange reflective triangle with red around the edges
    7·1 answer
  • g A ray of light is incident on a flat reflecting surface and is reflected. If the incident ray makes an angle of 28.7° with the
    9·1 answer
  • What fundimental force is responsible for the repulsion between two positively charged particles?
    5·1 answer
  • When comparing the three atomic models provided, which statement best describes the diagram?
    8·1 answer
  • true or false temperature and precipitation are the two most important elements of climate for the majorit of living things
    11·1 answer
  • Please help!
    15·2 answers
  • Billy did an investigation to learn whether bean plants will grow if they are given salt water. Billy repeated his experiment th
    6·2 answers
  • Consider the following reaction proceeding at 298.15 K: Cu(s)+2Ag+(aq,0.15 M)⟶Cu2+(aq, 1.14 M)+2Ag(s) If the standard reduction
    6·1 answer
  • Why did boy (the observer) hear the pitch of the sound change? What does this tell us about the frequency of the sound? Support
    10·1 answer
  • A body of mass 1kg is made to oscillate on a spring of force constant 16 n/m calculate 1 the angular frequency 2 the frequency o
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!