Recent content by Naldo6

ok i understand the gravity just affect the pendulum not the spring... ty

ok but if i calculate the frquency for the spring it is the same... and that is not the correct answer...

the frequncy 1.40 Hz is the answer for the pendulum but in my calculus it is sopose to be the same for both sistems and that is wrong... any suggestion ...

w=2*pi*f but w=sqrt(k/m) and k=(mg)/x_displacement so f=sqrt(g/x_disp)*[1/(2*pi)] and x_disp= ( g / [(f)*(2*pi)]^2 ) x_disp= (9.8/ [(3.40)*(2*pi)]^2) = 2.15x10^-2 if i use now the gravity of the moon it is f = sqrt(g/x_disp)*[1/(2*pi)] =...

oh ok thanks...a lot

ok thanks that was the correct answer but what is the diference betwenn speed and velocity?..

i have tried BCF, BC, and give me the wrong answers... i also tried the BCEF and is still wrong.. it shuold have another posibility that we are not thinking about...

i really don't understand... too much but my answer B and C are correct, but there is any other option that is correct too?... which is?...

direction on travel... if the source and observer moves towards the frequency goes up but if the source and the observer go away the frequency decrease... right?...

so the correect answer is BCE... right?..those are the three posibilities?...

ok, when both are moving at the same speed, it can't be, but when moving with diferrent speed iti coulb be, when john is moving towards the horn the pitch is going to be going up so it could be, when the distance betwenn them is increasing the frequency is going down so it is not an option, when...

Two different simple harmonic oscillators have the same natural frequency (f=3.40 Hz) when they are on the surface of the Earth. The first oscillator is a pendulum, the second is a vertical spring and mass. If both systems are moved to the surface of the moon (g=1.67 m/s^2, what is the new...

John is listening to a horn. He knows the frequency of the horn is 300 Hz when both he and the horn are at rest. If he hears a pitch of 330 Hz, there are clearly several possibilities. (Give ALL correct answers, i.e., B, AC, BCD...) A) Both can be moving and have the same speed. B) Both can...

thanks... it is the correct answer

oh yes i foget that in an instant so my y=0.044 sin(4.20x-152t) dy/dt= 0.044cos(4.20x-152t)(152) so the max speed is (0.044))(152) is this now right?... do i derivate correctly?...