.ll alfa ?1:09 PM@ 27% 4PHYS220_Exam-1 Pr...PHYS220 _ Spring/20-21 _ Practice Sheet-1_ Keys1) A0.1 kg object oscillates as a simple harmonic motion along the x -axis with a frequency f = 3.185 Hz.At a position x1, the object has a kinetic energy of 0.7 J and a potential energy 0.3 J. The amplitude ofoscillation, A, is:(a) 0.12 m(b) 0.22 m(c) 0.31 m(d)0.42 m2) A block of mass m is attached to a spring with force constant, k and oscillate at a frequency f. If themass is changed to m' = m/2, and the spring force is changed to k' = 2k, then the new frequency f' ofthe oscillation would be,(a) f' = 2f(b) f' = f(c) f' = f/2(d) f' = 4fThe following given is for questions 3 and 4:A block of mass m = 2 kg is attached to a spring with spring constant k = 200 N/m, and set tooscillates on a frictionless horizontal surface. At time t = 0 its position is xo = 0 and its velocity isvo = +5 m/s.3) Which of the following is true about the oscillation amplitude and the phase constant, ø:(a)A = 0.5, 9 = A/2(b)A = 0.5, p = -1/2(c) A = 0.25, 9 = /2(d)A = 0.25, o=-7/24) When the block's velocity has the value v = Vmax/2, then its position has the possible values of:(a) x = ±(3/4)A(b)x = ±A/2(c) x = ±(v3/2)A(d)x = +(vZ/2)A5) A block-spring system oscillates in a simple harmonic motion on a frictionless horizontal table. Itsdisplacement varies with time according to x(t) = 0.2 cos(2t – 1/4). The earliest time the particlereaches position x = 0.1 m is(a) t =24(b) t = S2447n(c) t = s247n(d) t =12

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1) A0.1 kg object oscillates as a simple harmonic motion along the x-axis with a frequency f = 3.185 Hz. At a position x, the object has a kinetic energy of 0.7 J and a potential energy 0.3 J. The amplitude of oscillation, A, is: (a) 0.12 m (b) 0.22 m (c) 0.31 m (d)0.42 m

1) A0.1 kg object oscillates as a simple harmonic motion along the x-axis with a frequency f = 3.185 Hz. At a position x, the object has a kinetic energy of 0.7 J and a potential energy 0.3 J. The amplitude of oscillation, A, is: (a) 0.12 m (b) 0.22 m (c) 0.31 m (d)0.42 m

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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