The material or substance that a wave moves through is called a ____
2 answers:
Answer:
The material or substance that a wave moves through is called a <u>MEDIUM</u>. The medium affects the speed of the wave that passes through it. One factor that affects the speed of a wave is the <u>TYPE</u> of medium. Some waves move faster in solids and some waves move faster in liquids and gases. Another factor that affects wave speed is the <u>TEMPERATURE</u> of the medium.
Explanation:
As we know that the speed of the wave is given as
here we know that
E = elasticity of the medium
= density of the medium
So here we know that speed of the wave will change with the elasticity of the medium which meas it is the type of medium on which the speed of wave will depends upon.
Another we can say for liquid or gas we can say that
so speed will depends on the temperature of the medium
so here answers are
1)Medium
2)Type of medium,
3)Temperature
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The energy conservation and trigonometry we can find the results for the questions about the movement of the acrobat are;
a) The maximum speed is v = 4.89 m / s
b) The maximum height is h = 1.22 m
The energy conservation is one of the most fundamental principles of physics, stable that if there are no friction forces the mechanistic energy remains constant. Mechanical energy is the sum of the kinetic energy plus the potential energies.
Em = K + U
Let's write the energy in two points.
Starting point. Highest part of the oscillation
Em₀ = U = m g h
Final point. Lower part of the movement
= K = ½ m v²
Energy is conserved.
Emo =
m g h = ½ m v²
v² = 2 gh
Let's use trigonometry to find the height, see attached.
h = L - L cos θ
h = L (1- cos θ)
They indicate that the initial angle is tea = 48º and the length is L = 3.7 m, let's calculate.
h = 3.7 (1- cos 48)
h = 1.22 m
this is the maximum height of the movement.
Let's calculate the velocity.
v = 4.89 m / s
In conclusion using the conservation of energy and trigonometry we can find the results for the questions about the movement of the acrobat are;
a) The maximum speed is v = 4.89 m / s
b) The maximum height is h = 1.22 m
Learn more here: brainly.com/question/13010190
