Answer:
Iron
Explanation:
The buoyant force equals to the weight of water being displaced by the object.
Since, the volume of both iron and wood is equal and the wood is not completely submerged, but the iron block is completely submerged i.e more volume of the water is being displaced by the iron block.
Hence, the buoyant force is more on the iron.
Answer:
a) f₀ = 3250 Hz
, f₁ = 6500 Hz, b) μ = 0.00100 kg/m
Explanation:
a) For standing waves to occur, waves of equal frequency that travel in opposite directions must be added
In the points where it is fixed there are nodes and in bellies or anti nodes in another symmetrical point
Fundamental wave: node at the ends, a belly (antinode in the center
L = 1 / 2 λ
Extreme node, two bellies L = 2/2 λ
For more bellies L = n / 2 λ
Therefore the equation for the wavelength is
λ = 2 L / n n = 1, 2, 3,…
Let's calculate
λ₁ = 2/1 (2.20)
λ₁ = 4.4 m
λ₂ = 2/2 2.20
λ₂ = 2.20 m
Having the wavelength we can use the relationship of wave speed and wavelength and frequency
v = λ f
v = √ T /μ
v = √ 14.30 / 0.001
v = 14300 m / s
f = v / λ
f₀ = 14300 / 4.4
f₀ = 3250 Hz
f₁ = 14300 / 2.2
f₁ = 6500 Hz
b) linear density is defined as mass per unit length
μ = m / l
μ = 0.0022 / 2.20
μ = 0.001 kg/m
a decrease in the frequency of the sound wave.
Explanation:
When a sound source is moving away from an observer, the observer will hear a lower pitch due to a decrease in the frequency of the sound wave. This is known as the Doppler's effect.
- As the sound source moves closer to the observer, they hear a higher pitch in the reverse process.
- A sound wave transmits vibrational energy from the source to the hearer.
- A sound wave has frequency, amplitude, velocity and wavelength just like other wave types.
- The frequency of a wave is the number of waves that passes through a point at a time.
- This is related to the the wavelength of a wave.
- Waves of a high frequency are known to have short wavelengths and vice versa.
- To hear a low pitch, the source moves away and the wavelength between successive crests and troughs on a wave increases considerably.
Learn more:
Sound waves brainly.com/question/2845448
#learnwithBrainly
Answer:
the direction of the particle is anti clockwise.
Explanation:
We know that;
- It's a positive particle
- That it's moving in a circle in a magnetic field
- We know the direction of the magnetic field
We can deduce the direction of the magnetic force because it is moving in a circle.
So the force is pointing to the centre of the circle and that's what is keeping it in that circular motion.
Since we know the direction of the magnetic field and force, we can use right hand rule to figure out the direction of the particle since the particle is positive.
Using right hand rule, the thumb which is the particle is pointing anticlockwise. So the direction of the particle is anti clockwise.
Newton observed the action of a prism on the white light and on red light. Because he did not control the event, this investigation of light was an observational study.
Hope this helps! (:
