The period of the wave is the reciprocal of its frequency.
1 / (5 per second) = 0.2 second .
The wavelength is irrelevant to the period. But since you
gave it to us, we can also calculate the speed of the wave.
Wave speed = (frequency) x (wavelength)
= (5 per second) x (1cm) = 5 cm per second
The wavelength is 2m.
Hence, Option c) 2m is the correct answer
Given that;
Frequency; 
Speed; 
Wavelength; 
using the expression for the relations between wavelength, frequency and speed of wave:
Where 
is wavelength, f is frequency and v is speed.
We substitute our given values into the equation
The wavelength is 2m.
Hence, Option c) 2m is the correct answer.
To learn more about wavelength, click here: brainly.com/question/1347107
Answer:
a) F = 62.2 N
, b) W = 973.2 J
, c) W = -943.3 J and d) W = 0 J
Explanation:
Work is a scalar that is obtained from the scalar product of two vectors, force and displacement. the bold are vectors
W = F.d = F d cos θ
a) As the car travels at constant speed the acceleration is zero
Fx -fr = 0
Fx = fr
Cos θ = Fx / F
F cos θ = fr
F = fr / cos θ
F = 52.7 / cos 32.1
F = 62.2 N
Is the force exerted by the person
b) Let's calculate the thrust force jobs
W = 62.2 17.9 cos 32.1
W = 973.2 J
c) The force of friction that opposes the movement and is on the x-axis
W = fr d cos 180
W = 52.7 17.9 cos 180
W = -943.3 J
d) The force of gravity that is vertical and has an angle of 90º with respect to the displacement
W = mg d cos 90
W = 0 J
The point is is you talking about the point is medium a a highlighter and it’s a reflection because it is a lighter color medium B has a higher index of refraction because it’s a darker go to medium because a higher end
