source : yahoo.com
A record rotates on a turntable at 33 rpm.?
that is true for LP records (the large ones that held around 30-40 minutes of music)
there were also 45 RPM records that were smaller, and held one song per side.
before that, there were large records that also held one song per side, and played at 78 RPM.
Solved: Problem 7.4 A Record Rotates On A Turntable At 33 – Problem 7.4. A record rotates on a turntable at 33 rpm. Part A. What is the angular speed in rad/s? Express your answer using two significant figures.A record rotates on a turntable at 33 rpm. You may want to review What is the angular speed in rad/s? Answers: 2 Show answers Another question on Physics. Physics, 21.06.2019 21:20. Abearing's rolling intemal mechanism and energy it takes to slide or move an object over a surface. n a greatly increases n b. greaty reduces n c. has no effect onIf the men are located on our record player at positions 10 cm and 4 cm from the center axis: Example. f = 45 rpm. r = 12 cm. First we calculate the period. Since 45 rpm = 0.75 revolutions/second . Thus the period of rotation is 1.33 seconds. Thus the speed will be. v= 2πr/T = 2π (10 cm)/ 1.33 sec = 47 cm/s
A record rotates on a turntable at 33 rpm. You may want to – 1) An old record player rotates clockwise at 33 1/3 rpm (revolutions per minute). a) What is its angular velocity in rad/s? b) Find the period of a record that is rotating at 45 rpm. a) We just need to do unit conversions: b) We can just convert to revolutions/sec, then take the reciprocal: sec 0.75rev 60sec 1min min 45rev ⋅ = rev sec sec revA turntable rotates at 45 r.p.m means, it takes 1 m to complete 45 rotations, So,time taken to complete 1 rotation is 1/45 *60 s=1.34s This is the time period(T) (by definition) So,angular speed= omega = (2pi)/T = (2pi)/1.34=4.7 (rad) /sAn old-fashioned single-play vinyl record rotates on a turntable at 45.0 rpm. What are (a) the angular velocity in rad/s and (b) the period of the motion?" "In physics, the angular velocity is defined as the rate of change of angular displacement and is a vector quantity (more precisely, a pseudovector) which specifies the angular speed
Rotational Motion | Gary Garber's Blog – The turntable of a record player rotates at 33.33rev/min and takes 20.0s to reach this speed from rest. Calculate: a) its angular acceleration, b) the number of revolutions it makes before reaching its final speed.Get an answer for 'An old-fashioned vinyl record rotates on a turntable at 33 1/3 rev/min. What is the linear speed at radius r? An old-fashioned vinyl record rotates on a turntable at 33 1/3 revDue to the listening time of around 22 minutes, 33 ⅓ RPM (12 inch) records are primarily used for LPs (Long Play Records) which house full albums split over 2 sides. 45 RPM (7 inch) records are smaller in size and cheaper to produce, and can house around 5 minutes per side.
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