about 6 years ago

A transverse wave on a rope is given by y(x,t)= (0.750cm)cos(π[(0.400cm−1)x+(250s−1)t]).

Find

A) Amplitude
B) Period
C) Frequency
D) Wavelength
E) Speed of propagation
F) Is the wave traveling in the +x- or − x-direction?
G) The mass per unit length of the rope is 0.0500 kg/m. Find the tension?
H) Find the average power of the wave (Watts)?

jonny2

about 6 years ago

Advanced Physics

The equation y(x,t)=acos2πf(xv−t) may be written as y(x,t)=acos[2πλ(x−vt)].

A) Use the last expression for y(x,t) to find an expression for the transverse velocity vy of a particle in the string on which the wave travels. Express your answer in terms of the variables A, v, λ, x, t, and appropriate constants.
B) Find the maximum speed of a particle of the string.
Express your answers in terms of the variables A, v, λ, x, t, and appropriate constants.

Baron129

over 7 years ago

Advanced Physics

Дана функция f (x) = (tgx) * x ^ 2 + (1-tga) + tga

дана функция f (x) = (tgx) * x ^ 2 (1-tga) + tga и уравнение (tg ^ 2a) f (x ^ 2) = f (f (x)) найти все функции f (x) для которые Соответствующий график. для каждой найденной функции постройте график и вычислите первую и вторую произвводные +

Joseph_Hardrock

over 7 years ago

Advanced Physics

I have a question about order of magnitude?

When I tried to solve order of magnitude questions, I realized that we found the answer as 4*10^7. But my book was converting this answer to this 4*10^7~10^8. I confused. Can you tell me what is happening?