Acd has diameter of 120 millimeters. when playing audio, the angular speed varies to keep the linear speed constant where the disc is being read. when reading along the outer edge of the disc, the angular speed is about 206 rpm (revolutions per minute). find the linear speed in meters/second. (round your answer to three decimal places.)

we are given

A cd has diameter of 120 millimeters

so, d=120mm

so, firstly, we will find radius

we can plug it

we know that

1mm=0.001m

so, we get

the angular speed is about 206 rpm

we know that

1 revolution =2pi radians

so, we get

now, we can change it into seconds

1 min =60 seconds

so, we get

now, we can find linear speed(v)

we can use formula

v=w*r

so, we can plug values

and we get

so, linear speed is 1.257 m/sec............Answer

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

you are uyytr tyy

step-by-step explanation: