contestada

Through what angle in degrees does a 33 rpm vinyl record turn in 0.23 s : A) 46° B) 26° C) 53° D) 33°

Respuesta :

Answer:

(a) angle record will be 46°

Explanation:

We have given speed = 33 rpm

Time t = 0.23 sec

We know that 1 revolution = 360°

And 1 minute = 60 sec

So 33 revolution/minute [tex]\frac{33\times 360}{60}=198^{\circ}/sec[/tex]

So angle record by vinyl [tex]=198\times 0.23=45.54^{\circ}[/tex] , which is nearly equal to 46

So angle record by vinyl is 46°

So option (a) will be the correct answer

Otras preguntas