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3 years ago

Which kind of wave interaction is shown?

Physics

2 answers:

Evgesh-ka [11]3 years ago

7 0

Yo my knowledge, refraction.

Free_Kalibri [48]3 years ago

6 0

Answer : (C) refraction.

Explanation :

This figure shows the refraction of light. Refraction of light is the phenomena in which light rays bend at the boundary of two medium.

When a light ray moves from denser to rarer medium then it will bend away from the normal line.

And if it moves from rarer to denser medium then it will bend toward the normal line.

Refraction of light depends on the refractive index of the medium.

So, the correct option is (C) "refraction"

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How much heat is required to heat 2 kg of water from 25°C to 40°C?

Dominik [7]

Answer:

126000 J

Explanation:

Applying,

Q = cm(t₂-t₁).................. Equation 1

Where Q = Amount of heat, c = specifc heat capacity of water, m = mass of water, t₁ = Initial temperature, t₂ = Final temperature.

From the question,

Given: m = 2 kg, t₁ = 25°C, t₂ = 40°C

Constant: c = 4200 J/kg.°C

Substitute these value into equation 1

Q = 2×4200(40-25)

Q = 2×4200×15

Q = 126000 J

5 0

3 years ago

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muminat

Answer:

-28.014 is the answer

3 0

2 years ago

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A4 40 kg girl skates at 3.5 m/s one ice toward her 65 kg friend who is standing still, with open arms. As they collide and hold

salantis [7]

Explanation:

Below is an attachment containing the solution.

8 0

3 years ago

The magnitude of a force vector is 89.6 newtons (N). The x component of this vector is directed along the +x axis and has a magn

insens350 [35]

Answer:

(a) θ = 33.86°

(b) Ay = 49.92 N

Explanation:

You have that the magnitude of a vector is A = 89.6 N

The x component of such a vector is Ax = 74.4 N

(a) To find the angle between the vector and the x axis you use the following formula for the calculation of the x component of a vector:

$A_x=Acos\theta$ (1)

Ax: x component of vector A

A: magnitude of vector A

θ: angle between vector A and the x axis

You solve the equation (1) for θ, by using the inverse of cosine function:

$\theta=cos^{-1}(\frac{A_x}{A})=cos{-1}(\frac{74.4N}{89.6N})\\\\\theta=33.86\°$

the angle between the A vector and the x axis is 33.86°

(b) The y component of the vector is given by:

$A_y=Asin\theta\\\\A_y=(89.6N)sin(33.86\°)=49.92N$

the y comonent of the vecor is Ay = 49.92 N

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2 years ago

Properties seen when one substance changes to another are know as ____ properties

maxonik [38]

Answer: chemical property

Explanation:

6 0

2 years ago

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