Explanation:
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The Linear speed of the CD is : 30.16 m/s
<u>Given data : </u>
Angular speed = 4800 RPM
Diameter of CD ( D )= 120 mm ≈ 0.12 m
<h3 /><h3>Determine the Linear speed of the CD </h3>
applying the equation : v = ( π DN ) / 60 m/s
Linear speed ( V ) = ( π * D * N ) / 60 m/s
= ( π * 0.12 * 4800 ) / 60
= 30.16 m/s
Hence we can conclude that the linear speed of the CD is : 30.16 m/s
Learn more about linear speed : brainly.com/question/25594119
Set up a proportion
1 mile/1.6 km = 20,000miles/x
Cross Multiply
x = (20,000) * (1.6)
x = 32,000 kilometers
<span>I of disk = 1/2MR² = (0.5)(230)(4.0)² = 1840 kgm²
I of disk-woman system = I = 1/2MR² + md² = (50)(4.0)² = 1840 + 800 = 2640 kgm²
L = Iw = (2640)(0.80)(2π) = 13,270 ≈ = 13,000 kgm²/s ANS
idk I'm just trying</span>
Answer:
3.504 MeV
Explanation:
Given that;
Also;
)
Mass number of X = 229
Mass number of Y = 225
Mass number of alpha particles = 4
Kinetic energy of alpha particles = 3.443 MeV
Q = 3.443 MeV (225 + 4/225)
Q= 3.504 MeV