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
Dvinal [7]
3 years ago
6

9.

Physics
1 answer:
Nat2105 [25]3 years ago
5 0

Answer:3.1

Explanation:

You might be interested in
A floating leaf oscillates up and down two complete cycles in one second as a water wave passes by. The wave's wavelength is 10
postnew [5]

Answer:

C) 20 m/s

Explanation:

Wave: A wave is a disturbance that travels through a medium and transfers energy from one point to another, without causing any permanent displacement of the medium itself. Examples of wave are, water wave, sound wave, light rays, radio waves. etc.

The velocity of a moving wave is

v = λf ............................ Equation 1

Where v = speed of the wave, λ = wave length, f = frequency of the wave.

Given: f = 2 Hz (two complete cycles in one seconds), λ = 10 meters

Substituting these values into equation 1

v = 2×10

v = 20 m/s.

Thus the speed of the wave = 20 m/s

The right option is C) 20 m/s

7 0
4 years ago
Each kidney contains nephrons that filter the blood and remove waste. Please select the best answer from the choices provided. T
bekas [8.4K]

Answer: The correct answer is "True".

Explanation:

Nephron is a functional unit of kidney. Each kidney contains a millions of nephrons. It contains small blood vessels.

It filters the blood to remove excess water and the waste product from the blood. Then, it returns the cleaned blood back to rest of the body. It selectively reabsorbs the substance such as glucose. It excretes nitrogenous waste such as urea. It removes excess salt in the form of urine.

Therefore, the given statement is true.

8 0
3 years ago
Read 2 more answers
Which statement uses the terms velocity and acceleration correctly?
Pie

Answer:

i think is E

Explanation:

5 0
3 years ago
Two long parallel wires are separated by 6.0 mm. The current in one of the wires is twice the other current. If the magnitude of
lions [1.4K]

Answer:

Explanation:

Magnitude of force per unit length of wire on each of wires

= μ₀ x 2 i₁ x i₂ / 4π r    where i₁ and i₂ are current in the two wires , r is distance between the two and  μ₀ is permeability .

Putting the values ,

force per unit length = 10⁻⁷ x 2 x i x 2i / ( 6 x 10⁻³ )

= .67 i² x 10⁻⁴

force on 3 m length

= 3 x .67 x 10⁻⁴ i²

Given ,

8 x 10⁻⁶ = 3 x .67 x 10⁻⁴ i²

i²  = 3.98 x 10⁻²

i = 1.995 x 10⁻¹

= .1995

=  0.2 A approx .

2 i = .4 A Ans .

6 0
4 years ago
When the temperature of 0.0788 moles of a diatomic gas drops, its internal energy drops by -50.7 J. What was the temperature cha
miss Akunina [59]

Answer:

30.93

Explanation:

It is correct on Acellus

5 0
3 years ago
Other questions:
  • An object having a mass of 11.0 g and a charge of 8.00 ✕ 10-5 C is placed in an electric field E with Ex = 5.70 ✕ 103 N/C, Ey =
    5·1 answer
  • Considerando que você comece a caminhar em velocidade constante, inicialmente a 350 m de um ponto referencial escolhido. Você ca
    9·1 answer
  • How do protons ever fuse together in the presence of the electromagnetic force? There is another force involved here called the
    9·1 answer
  • Which of the following is true about all of the outer planets?A.Much of the material in these planets is solid.B.The surface of
    14·1 answer
  • According to Newton's 3rd law, the force on the (smaller) moon due to the (larger) earth is?
    14·1 answer
  • You drive your car in a straight line at 15 m/s for 10 kilometers, then at 25 m/s for another 10 kilometers.
    13·1 answer
  • II) Water flows with an average speed of 3.0 m/s through a section of a stream that is 30 m wide and 1.0 m deep. The water then
    14·1 answer
  • A squirrel scurries up a 25 m tall tree in only 6.25 seconds. What is the
    5·2 answers
  • A brick of gold is 0.1 m wide, 0.1 m high, and 0.2 m long. The density of gold is 19,300 kg/m3. What pressure does the brick exe
    13·1 answer
  • A motorboat sets out for open sea. From home it travels 5 km due East, then heads [N35E] at 2 m/s for 90 minutes. After a break,
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!