OUR disc in revolutions per minute when information is being read from the point of the laser-lens system is 1.3ms. (a) Find the angular speed of the In a typical compact disc player, the constant speed of the surface at the 1. isc in revolutions per minute when information is being read from the innermost first track (r = 23mm) and the outermost final track (r = 58mm) (b) If the maximum playing time of a standard music CD is 74min and 33s, how many revolutions does the disc make during that time? (c) What total length of track moves past the objective lens during. this time? (d) What angular acceleration of the CD over the 74min and 33s time interval? Assume that angular acceleration is constant. %3D wheel rotates with

Q: What is the critical angle for the interface between material 1 (n=1.58)  and material 2 (n=1.30)?

A: The refractive index of material 1 is, n1=1.58 The refractive index of material 2 is, n2=1.30

Q: Let D = 3.00r2 ar μC/m2 for r ≤ 0.05 cm and D = (0.25/r2) ar μC/m2 for r ≥ 0.05 m. Find ρν for r =…

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Q: A particle is moving with the given data. Find the position of the particle. a(t) = 10 sin(t) + 9…

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Q: Determine the maximum and minimum second moments of area with respect to axes through the origin of…

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Q: Required information Given the function y(x, t) = (4.00 cm) sin ((378 rad/s)t - (314 rad/cm)x).…

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Q: Calculate the spectral line wavelength λ using the equation d sin 0 m X and its uncertainty X using…

A: the uncertainity in position Δx that is approximately equal to the particle's wavelength. In other…

Q: Find the centroid of the area of the composite shape shown below. Find BOTH x and y values but input…

A: We need to find out the x and y coordinate of centroid.

Q: How is this formula derived? ω = 2π/T = 2πf.

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Q: 15 x(t) = cos(4√15t) + √5 sin(4√/15t) 12 i(t) = 5cos(4√/15t) — 2√5 sin(4√15t) ä(t) = -24cos(4√/15t)…

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Q: A resonator is formed by a convex mirror of radius R1=-1 m and a concave mirror of radius R2=1.5 m.…

A: Given:radius of convex mirror, R1 = 1 mradius of the concave mirror, R2 = 1.5 m(we ignore the given…

Q: Q/ prove that µ=[(mM)/(M+m)]

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Q: A particle at t = -1.5 s is at x1 = 5.0 cm and at t2 = 4.0 s is at x2 = %3D 9.0 cm .

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Q: If F 180 N, determine the magnitude and coordinate direction angles of the couple moment. Note: The…

A: Given : F = 180 N

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.