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
aliya0001 [1]
3 years ago
6

A swimming duck paddles the water with its feet once per time interval of 2.0 s, producing surface waves with this period. The d

uck is moving at constant speed in a pond where the speed of surface waves is 0.30 m/s, and the crests of the waves ahead of the duck have a spacing of 0.20 m.

Physics
1 answer:
vfiekz [6]3 years ago
3 0

Answer:

Part A: What is the duck's speed? v=0.2m/s

Part B: How far apart are the crests behind the duck = 1m

Explanation:

The concept applied here is the DOPPLER EFFECT, for example, if one is driving towards a station at 120km/hr, a higher frequency will be heard. and if you are driving away from the station at the same speed, one will hear a much more lower frequency. Tthese effect was proposed by the Austrian physicist by name Johann Christian doppler.

The detailed steps and appropriate formula is as shown in the attached file.

You might be interested in
How many earths can fit on the moon
liberstina [14]
Hello My Dear Friend!

Do you mean Sun or actually Moon?

If Moon is what you're looking for...then that is absolutely IMPOSSIBLE, due to that the Earth is WAY bigger than the Moon, therefore, not even HALF of the Earth would fit into the Moon since it's too small XD.

But if it's Sun...well then, t<span>he Answer is that it would take </span>1.3 million Earths<span> to fill up the Sun. That's a lot of Earths LOL XD

</span>I Hope my answer has come to your Help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead! :)

(Ps. Mark As Brainliest IF Helped!)

-TheOneAboveAll :D
8 0
3 years ago
A cylinder of compressed gas has a pressure of 488.2 kPa. The next day the cylinder of gas has a
Luda [366]

Answer:

20 °C

Explanation:

Ideal gas law:

PV = nRT

Rearranging:

P / T = nR / V

Since n, R, and V are constant:

P₁ / T₁ = P₂ / T₂

488.2 kPa / T = 468 kPa / 281.15 K

T = 293.29 K

T = 20.1 °C

Rounded, the temperature was 20 °C.

6 0
3 years ago
What happens when a light ray is parallel to the principal axis ?
Phantasy [73]

Answer:

Any incident ray traveling parallel to the principal axis of a converging lens will refract through the lens and travel through the focal point on the opposite side of the lens. ... These rays of light will refract when they enter the lens and refract when they leave the lens.

Hope this helps...

7 0
3 years ago
If density of water is 300kg m3 and hight 4m of water find the pressure of water ?<br>​
iren [92.7K]

Answer:

11, 760 Pa.

Explanation:

By applying formula P= pgh, where P is pressure, p is density, g is gravitational acceleration (9.8 m\s2) and h is height of water level. Putting values in the formula, you can have the correct answer.

3 0
3 years ago
Question 4 A car of mass 820 kg has a maximum power or 30 kW and moves against a constant resistance of motion to 910 N. Calcula
Naddika [18.5K]

Explanation:

power = force × velocity

velocity=power/force

=(30×1000)/910

=32.97m/s

7 0
3 years ago
Other questions:
  • In a crash or collision, why is it advantageous for an occupant to extend the time during which the collision is taking place?
    14·1 answer
  • Any value giving up from the best alternative is called​
    8·1 answer
  • HELP!!
    14·2 answers
  • How does an object's position and velocity change as the object accelerates?”
    15·1 answer
  • An outside thermometer reads 57 F. What is this temperature in C ? Round you’re answer to the nearest whole number
    11·2 answers
  • What is the difference between a bound orbit and an unbound orbit around the sun?
    10·1 answer
  • Help pls!
    14·1 answer
  • A person next to a fireplace feels warm. How is the heat transferred to them?
    13·1 answer
  • What is the period of a blender blade that spins around 400 times in 5.0s
    15·1 answer
  • To increase the acceleration on the new station due to Earth's gravity, you decide
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!