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2 years ago

Study the interaction of the light rays with the mediums. Classify the medium in each image as being transparent or opaque.

Physics

2 answers:

Tresset [83]2 years ago

6 0

Answer:

a) transparent

b) transparent

c) opaque

Explanation:

In the first one, the light rays go completely through, so it is transparent.

The second one I'm not too sure about. It is refraction so it's going through a different material, but the fact that it went through makes me say transparent.

Last one, the light rays are reflecting off the surface so it's opaque.

Please feel free to correct me if I'm wrong. This is just my understanding

Talja [164]2 years ago

4 0

Answer:

a) transparent

b) transparent

c) opaque

Explanation:

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The pressure, p, of water (in pounds per square foot) at a depth of d feet below the surface is given by the formula p=15+15/33d

Viefleur [7K]

The pressure of the water on the diver is given in an expression written as:

p=15+15/33d

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The pressure is calculated as follows:

p=15+15/33(100) = 15.00 pounds per square feet

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3 years ago

a projectile is launched from level ground with an initial speed v0 at an angle θ with the horizontal. if air resistance is negl

LekaFEV [45]

The time of flight of the launched particle will be 2v₀ sinθ / g.

<h3>What is kinematics?</h3>

The study of motion without considering the mass and the cause of the motion.

A projectile is launched from level ground with an initial speed v₀ at an angle θ with the horizontal. If air resistance is negligible.

Then the time of flight of the launched particle will be given as,

Determine how long it requires the projectile to reach its highest point in order to calculate the flight duration. Just twice as long as the maximum altitude is the travel time.

$\rm v_y = v_{o_y} + a_y t$

At maximum height, $\rm v_y = 0$ .

The time to reach maximum height is given as

$\rm t_{1/2} = - \dfrac{v_{o_y} }{ a_y}$

The time of flight is given as,

$\rm t = 2 \times t_{1/2} = - \dfrac{2v_{o_y}}{ a_y}$

Substituting in $\rm v_{o_y} = v_o \ \sin(\theta ) \ and \ a_y = -g$ , then we have

The time of flight of the launched particle will be 2v₀ sinθ / g.

More about the kinematics link is given below.

brainly.com/question/7590442

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1 year ago

Various singly-ionized atomic nuclei of the same speed are directed into a magnetic field in a mass spectrometerwhere they are d

ki77a [65]

Answer:

a) least mass

Explanation:

According to the Newton's first law of motion, more the mass of a body the greater is its inertia, and inertia is the tendency of a body to resist any change to its state of rest or uniform motion.

Greater is the mass of charge least is its deflection under the influence of magnetic field.

This can be explained well by the mathematical equations relating the centripetal force and the magnetic force on a charged mass moving in a magnetic field perpendicular to the velocity:

$m.\frac{v^2}{r} =q.v.B$

where:

m = mass of the charged particle

v = velocity of projection of the charged mass into the magnetic field

r = radius of curvature of path of charged mass under the magnetic force

q = magnitude of charge on the particle of mass 'm'

B = intensity of magnetic field normal to 'v'

$\Rightarrow v=\frac{q.B.r}{m}$

$\Rightarrow v\propto \frac{1}{m}$

i.e.

Speed of the charge is higher when its mass is lesser and according to the Fleming's left hand rule we known that the charge continuously faces a magnetic force while moving in the field.

& also,

$\Rightarrow m\propto \frac{1}{r}$

Which indicates that more is the mass of charge larger is the radius of its trajectory of motion which means lesser is its deviation.

6 0

3 years ago