Answer
Given:
Wavelength = λ = 18.7 cm
= 0.187 m
Amplitude, A = 2.34 cm
Velocity, v = 0.38 m/s
A) Calculate the angular frequency.
Angular frequency,
ω = 2π f
ω = 2π x 2.03
ω = 12.75 rad/s
B) Calculate the wave number:
C)
Since the wave is traveling in the -x direction, the sign is positive between x and t
y (x, t) = A sin(k x - ω t)
y (x, t) = 2.34 sin(33.59 x - 12.75 t)
Response:
A protractor to gauge the angle between the inclined plane and the horizontal
Explanation:
The student must elevate the free end of the adjustable inclined plane until the object just begins to slide and record the angle at that precise moment. At this juncture, the frictional force is balanced by the weight component aligned with the incline. That is:
and
Consequently, the coefficient of static friction can be entirely established by calculating the tangent of the angle formed by the incline with the horizontal.
For this, the sole additional tool needed is a protractor for angle measurement.
In the query, it is stated that
The intensity of the uniform electric field equals The distance the electron covers is
Typically, the force exerted on this electron is expressed mathematically as
Where F signifies the force and q represents the charge of the electron, which is a fixed value of
Thus
Generally, the work-energy theorem is mathematically framed as
Where W denotes the work done on the electron by the electric field and is the change in kinetic energy
Additionally, work done on the electron can also be described as
Where assuming that the electron's movement aligns with the x-axis
So
Inserting values
According to the conservation of energy
Where signifies the change in potential energy
Thus