All categories

4 years ago

3. This diagram shows that Al can see the reflections of Ed and Fred in the

Physics

1 answer:

Dvinal [7]4 years ago

3 0

Answer:

Only Cy and Di could see the reflections.

Explanation:

Reflection is a property of light that makes it to travel through its initial path on hitting a plane surface. It is good to note that the angle of the incident ray to the surface is equal to the angle of reflection after hitting the surface. It can generally be classified into diffuse and specular.

A ray of light travels on a straight path, the images of the students are formed due to reflection of light at the plane surface. By ray constructions and observation, it would be observed that only Cy and Di could see the reflections of the four students. This is due to their positions with respect to the reflecting surface.

You might be interested in

A deer is running from a mountain lion when it encounters a fence that is 1.50 m high. Seeing the fence, the deer jumps, leaving

Novosadov [1.4K]

Answer:

Explanation:

Given

Initial Velocity (u)=13 m/s

angle $=29^{\circ}$

distance between fence and deer=2.5 m

We consider deer jump similar to projectile motion

equation of trajectory

$y=xtan\theta -\frac{gx^2}{2u^2(cos\theta )^2}$

$y=2.5tan(29)-\frac{9.8\times 2.5^2}{2\times 13^2\times (cos29)^2}$

$y=1.385-0.2368=1.148 m$

Thus deer will cross the fence with an difference in its jump and fence

1.5-1.148=0.351 m

$h_{max}=\frac{u^2sin^2\theta }{2g}$

$h_{max}=\frac{13^2\times (sin29)^2}{2\times 9.8}$

$h_{max}=2.02 m$

so deer rises during when it is over fence

8 0

4 years ago

An ideal blackbody in physics and astronomy is an object that

vfiekz [6]

Answer:absorbs and emits electromagnetic radiation at all wavelengths

Explanation:

A blackbody is a believed to be a perfect absorber and reflector of radiation. Blackbody, in physics, refers to a surface that absorbs all radiant energy that falls on it. It is supposed that because incident visible light will be absorbed rather than reflected, the surface will appear black.

8 0

3 years ago

IN WHAT SEQUENCE DOES MAGMA MOVE THROUGH A VOLCANO?

Natalka [10]

Well the volcanos come from the lower crust and moves up with changes the climate

6 0

4 years ago

Which of the following statements about diodes and triodes is correct

nata0808 [166]

There are no correct statements on your list.

4 0

3 years ago