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Nikolay [14]
3 years ago
13

What happens when light waves pass between two materials of different densities?

Physics
2 answers:
shusha [124]3 years ago
4 0

Answer:

Light waves change speed when they pass across the boundary between two substances with a different density , such as air and glass. This causes them to change direction, an effect called refraction . the light speeds up going into a less dense substance, and the ray bends away from the normal.

cricket20 [7]3 years ago
3 0
Top guy is right good luck :)
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What are some ways you could demonstrate parliamentary procedure skills during a meeting? Which parliamentary rule do you think
Ierofanga [76]

The parliamentary procedural skills which can be emulated during a meeting include but are not limited to;

  • Creating a manual to develop a working format for proper parliamentary procedure.

  • Creating an agenda. This follows from the fact that the absence of am agenda makes it quite difficult to conduct the meeting and hence, the meeting may become uncontrollable.

  • The importance of a "minutes" document cannot be overemphasized. The minutes will contain a brief, but comprehensive review of the previous meeting as this can serve as an anchor to the current one.

  • It is also important to appoint a member to be the parliamentarian if the chairman isn't already.

<h3>What are the ways to demonstrate parliamentary procedural skills?</h3>

The parliamentary procedure in its simplicity may seem like a guide for the conduct of analogous gatherings.

Hence, the parliamentary rules are as listed above in which case, the most important is to create an agenda as the meeting can become rowdy otherwise.

Read more on parliamentary rules;

brainly.com/question/23265511

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8 0
2 years ago
A simple pendulum has a bob of mass M. The bob is on a light string of length . The string is fixed at C. At position A, the str
Vlad [161]

Answer:

v=\sqrt{2gL}

Explanation:

mass of bob = M

string is fixed at C, at position A the string is horizontal and at position B teh string is vertical.

Let the length of the string is L.

At the point C, it has maximum potential energy which is equal to

U = M x g x L   ..... (1)

At the position B, it has maximum kinetic energy and the velocity is v.

K = 1/2 Mv²     ...... (2)

According to the conservation of energy

The potential energy at the position A is equal to the kinetic energy at position B.

M x g x L = 1/2 M x v²

v² = 2 x g x L

v=\sqrt{2gL}

6 0
3 years ago
Read 2 more answers
Grade 12 math: vectors as forces?
sashaice [31]
Larger tug force = 2*cos20 forward + 2*sin20 to the right (starboard) 
<span>Smaller tug force = 1*cos15 forward + 1*sin15 to the left (port) </span>

<span>Resultant force forward = 2*cos20 + 1*cos15 = 2.8453 (4dp) </span>
<span>Resultant force to right = 2*sin20 - 1*sin15 = 0.4252 (4dp) </span>

<span>Angle of resultant force = arctan(0.4252 / 2.8453) = arctan(0.1494) = 8.5 degrees</span>
4 0
3 years ago
Part of understanding the physical effects on Mars, we must understand
Ber [7]

Answer:

so easy add the subtract then multiplay the add

Explanation:

8 0
3 years ago
What is the purpose of control group ?
kirill [66]
Control group in a scientific experiment is a group separated from the rest of the experiment, it is where the independent variable being tested cannot influence the results. It isolates the independent variable's effects on the experiment and can helps rule out alternative explanations of the experimental results.
6 0
3 years ago
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