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4 years ago

As the wave interacts with a wall, which kind of wave interaction is shown?

Physics

2 answers:

MArishka [77]4 years ago

8 0

The correct answer is reflection

I just took the test

kow [346]4 years ago

5 0

The answer would be a reflection. This is because, the color of an object is actually the wavelengths of the light reflected while all other wavelengths are absorbed. Color, in this case, refers to the different wavelengths of light in the visible light spectrumperceived by our eyes. The physical and chemical composition of matter determines which wavelength (or color) is reflected.

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Help me !!!

Olenka [21]

Answer:−4.05

Explanation:

3 0

3 years ago

A small rubber wheel is used to drive a large pottery wheel. The two wheels are mounted so that their circular edges touch. The

Goshia [24]

Answer:

$0.629\ \text{rad/s}^2$ counterclockwise

$9.98\ \text{s}$

Explanation:

$r_1$ = Small drive wheel radius = 2.2 cm

$\alpha_1$ = Angular acceleration of the small drive wheel = $8\ \text{rad/s}^2$

$r_2$ = Radius of pottery wheel = 28 cm

$\alpha_2$ = Angular acceleration of pottery wheel

As the linear acceleration of the system is conserved we have

$r_1\alpha_1=r_2\alpha_2\\\Rightarrow \alpha_2=\dfrac{r_1\alpha_1}{r_2}\\\Rightarrow \alpha_2=\dfrac{2.2\times 8}{28}\\\Rightarrow \alpha_2=0.629\ \text{rad/s}^2$

The angular acceleration of the pottery wheel is $0.629\ \text{rad/s}^2$ .

The rubber drive wheel is rotating in clockwise direction so the pottery wheel will rotate counterclockwise.

$\omega_i$ = Initial angular velocity = 0

$\omega_f$ = Final angular velocity = $60\ \text{rpm}\times \dfrac{2\pi}{60}=6.28\ \text{rad/s}$

t = Time taken

From the kinematic equations of linear motion we have

$\omega_f=\omega_i+\alpha_2t\\\Rightarrow t=\dfrac{\omega_f-\omega_i}{\alpha_2}\\\Rightarrow t=\dfrac{6.28-0}{0.629}\\\Rightarrow t=9.98\ \text{s}$

The time it takes the pottery wheel to reach the required speed is $9.98\ \text{s}$

4 0

3 years ago

an object is shot vertically upward into the air with an initial velocity of 20 m/s? which of the following correctly describes

Drupady [299]

Answer:

Answer is (C)

Explanation:

For acceleration

• If the motion is vertically, then acceleration is 9.8 m/s²

» Upward motion, acceleration is negative (-9.8)

» Downward motion, acceleration is positive (+9.8)

For velocity

${ \rm{v = u + gt}} \\ { \rm{v = 20 + ( - 9.8 \times 4)}} \\ { \rm{v = - 19.2 \: m {s}^{ - 1} }}$

5 0

2 years ago

The __________ lobe contains the area of the cortex involved in auditory processing called the primary __________ cortex. A. par

Vlada [557]

The temporal lobe contains the area of the cortex involved in auditory processing called the primary auditory cortex.

The temporal lobe is associated with auditory processing and olfaction.
The primary auditory cortex is the part of the temporal lobe which processes auditory information.

8 0

3 years ago

Read 2 more answers

Difference between incident ray and reflected ray

SSSSS [86.1K]

Answer:

An incident ray is a ray of light that strikes a surface. The angle between this ray and the perpendicular or normal to the surface is the angle of incidence.

The reflected ray corresponding to a given incident ray, is the ray that represents the light reflected by the surface. The angle between the surface normal and the reflected ray is known as the angle of reflection. The Law of Reflection says that for a specular (non-scattering) surface, the angle of reflection always equals the angle of incidence.

3 0

3 years ago