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mamaluj [8]
3 years ago
13

We know that the frequency and wavelength of an oscillation are related by the velocity of the wave . In standing waves, the wav

e velocities of the different harmonics are the same.Think about why this may be and explain that in your notebook. (Hint: The wave velocity is dependent on the static properties of the oscillating object like mass per unit length and tension)
Physics
1 answer:
Sidana [21]3 years ago
3 0

Answer

the medium does not change the speed of the on they should change.

Explanation:

The speed of the waves is constant for a given medium, depending on the physical properties of the medium,

When a wave is strapped on a wall of a medium it does not change the properties of the medium, the wave changes direction, but since the medium does not change the speed of the on they should change.

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The 8 kg block is then released and accelerates to the right, toward the 2 kg block. The surface is rough and the coefficient of
natita [175]

Answer:

3.258 m/s

Explanation:

k = Spring constant = 263 N/m (Assumed, as it is not given)

x = Displacement of spring = 0.7 m (Assumed, as it is not given)

\mu = Coefficient of friction = 0.4

Energy stored in spring is given by

U=\dfrac{1}{2}kx^2\\\Rightarrow U=\dfrac{1}{2}\times 263\times 0.7^2\\\Rightarrow U=64.435\ J

As the energy in the system is conserved we have

\dfrac{1}{2}mv^2=U-\mu mgx\\\Rightarrow v=\sqrt{2\dfrac{U-\mu mgx}{m}}\\\Rightarrow v=\sqrt{2\dfrac{64.435-0.4\times 8\times 9.81\times 0.7}{8}}\\\Rightarrow v=3.258\ m/s

The speed of the 8 kg block just before collision is 3.258 m/s

7 0
3 years ago
A rocket, which is in deep space and initially at rest relative to an inertial reference frame, has a mass of 50.2 × 105 kg, of
AysviL [449]

Answer:

165.2762 m/sec

Explanation:

The initial mass of the rocket and the fuel

M₀ = 5.02e6 kg

The initial mass of the fuel

Mf₀ = 1.25e6 kg

The rate of fuel consumption

dm/dt = 370 kg/sec

The duration of the rocket burn

Δt = 450 sec

The rocket exhaust speed

Ve = 4900 m/sec

The thrust, T

T = Ve (dm/dt) = 1813000 kg m/sec²

The mass of the expended propellant, ΔM

ΔM = Δt (dm/dt) = 166500 kg

The rocket's mass after the burn

M₁ = M₀ − ΔM = 4853500 kg

The speed of the rocket after the burn

Δv = Ve ln(M₀/M₁) = 165.2762 m/sec

6 0
3 years ago
Which describes a p-type semiconductor?
Digiron [165]
It has holes (an electron deficiency).
6 0
3 years ago
Read 2 more answers
What natural resources are in a computer?
Dafna11 [192]

Answer:

I know copper is one

Explanation:

6 0
3 years ago
You are explaining to friends why astronauts feel weightless orbiting in the space shuttle, and they respond that they thought g
MissTica
The Earth's radius is 6371 km. So that's our distance from the center when we're on the surface.

The Shuttle astronaut's distance from the center, when s/he's in orbit, is 330 km greater ... that's 6701 km.

The force of gravity is inversely proportional to the distance between the center of the Earth and the center of the astronaut. So, in orbit, it's

(6371/6701)^2 = 90.4 %

of its value on the surface.
8 0
3 years ago
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