Answer:
A
Explanation:
<em>a_c</em><em> </em><em>=</em><em> </em><em>v</em><em>^</em><em>2</em><em>/</em><em>r</em>
<em>v</em><em> </em><em>=</em><em> </em><em>sqrt</em><em>*</em><em>a_c</em><em> </em><em>×</em><em> </em><em>r</em><em>*</em>
<em>v</em><em> </em><em>=</em><em> </em><em>sqrt</em><em> </em><em>*</em><em> </em><em>1</em><em>8</em><em> </em><em>×</em><em> </em><em>9</em><em>*</em><em> </em>
<em>v</em><em> </em><em>=</em><em> </em><em>9</em><em>×</em><em>sqrt</em><em> </em><em>*</em><em>2</em><em>*</em>
<em>v</em><em> </em><em>=</em><em> </em><em>1</em><em>2</em><em>.</em><em> </em><em>7</em><em> </em><em>m</em><em>/</em><em>s</em>
Cardiac, smooth, and skeletal. cardiac muscle cells are located in the walls of the heart and appear striated and are under involuntary control. smooth muscle fibers are located in walls of hollow visceral organs except the heart they also appear striated. skeleton muscle is found between bones and uses tendons to connect to the epimysium to the periosteum, or the outer covering of bone. skeletal muscle is shaped and adapted in many ways.
(please mark me brainliest!)
Using the wavelength expressions, such as the distance between two peaks of a wave, that of the frequency as a function of the speed and the wavelength, such as the period inversely proportional to the frequency we have to for the first question
the wavelength is the distance between the two ridges that is
For the second question the frequency is determined as the rate of change of the velocity versus the wavelength, that is
For the third question the period is inversely proportional to the frequency, therefore
Answer:
Ф = 142.674 degree
Ф = 2.490131057 rad
wavelength = 0.396316 λ
Explanation:
Given data
combined wave having an amplitude 0.64 times
to find out
answer in degrees, radians, and fraction of the wavelength
solution
let us consider these two wave equation
Asin(ωt) and the Asin (ωt + Ф)
and here Ф is phase difference
so we say
resultant wave is
Y = Asin(ωt) + Asin (ωt + Ф) = Asin(ωt + Ф/2) cos ( Ф/2)
so Y = A' sin(ωt + Ф/2)
we know that here resultant wave amplitude is 2A cos ( Ф/2)
so
put A= 0.64 A
so 2Acos ( Ф/2) = 0.64 A
and Ф/2 = 71.3370
Ф = 142.674 degree
Ф = 2.490131057 rad
so wavelength is 2.490131057 / 2π
wavelength = 0.396316 λ
Objects absorb and reflect light differently depending on their physical characteristics, such as their shape or composition. Thanks to the reflection we can see the objects. Reflection can be defined as the change of direction of a wave, which, when in contact with the separation surface between two changing means, returns to the point where it originated. When the light illuminates the object, such as the tree, the rays of light will disperse in all directions allowing observation.
The correct answer is A. From every point on the surface of the tree, and in every direction