Parameters and Typical Relationship - 无忧得胜-网上国际课程 (5edu.win)

1#

05.12: A mass on the end of a spring oscill)i3+lvhp fk7 upm*9s yates with the displacement versus time graph shown to the right. Which of the following statements about its mot)l vfu* yp+3 9smhk7ipion is INCORRECT?

A. The amplitude of the oscillations is 0.08 meters.

B. The frequency of oscillations is 0.5 Hz.

C. The mass achieves a maximum in speed at t = 1.0 second.

D. The period of oscillations is 2.0 seconds.

E. The mass experiences a maximum in the size of the acceleration at t = 1.5 s.

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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

10.08: A mass is connected to the )bg elvm6./ dm,1 )8yhccyag vend of a spring and undergoes simple harmonic oscillation. The graph provided shows the position of t)v ) g1ghyl,v8.ca 6myb e/mcdhe mass as measured from the floor as a function of time.
What is the period of the mass’s oscillation (in units of seconds)?

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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

10.09: A mass is connectfgxqa,p s503. r1djg0g s*o rded to the end of a spring and undergoes simple harmonic oscillation. The graph provided shows the position of the mass as measured from the floor as a function ,p fq gxar0o1d0g3 *g.ssjd5r of time.
What is the amplitude of the mass’s oscillation (in units of meters)?

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4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

14.08: A 2.50 g mass connected to the e :nr. 5tzn- lzkqkos06nd of an ideal spring oscillates in simple harmonic motion. The mass’s position is described as a function of time by x(t) =0.20 cos(8.00 t + 0.50) where all quantities are in base SI units. Which one of the following choices gives the numerical value of the oscillation’s kq. nk6szn0ot: z-l5ramplitude in base SI units?

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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

15.26: The position of a mass connected to a spring obeysmlu(8)jpbugx z*w1cm3p 7:yjn 0ed+n x(t) = Acos(wt) . What is the average speed for one full oscillation in terms of the mass’s maximum speed during oscillation*1 jxm7( bpwdn:znu uy 3mlce0p+8g)j, $V_max$?

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6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

03.37: An object on a spring undergoes Simple Harmonil;xtm9hs( (e)a0y)nlsqtpo7, bf: alc Motion. Its motion can be described by thefollowing equation y = (0.3 m) sin (10π t + 4) where m is in meters and t qo0sftx e )lb9h(laa7 n(tp)l: ;sy, mis in seconds. What is the amplitude of the vibrating mass on the spring?

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7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

03.38: An object on a spring undergnr+oq-m29)qtnn( rs goes Simple Harmonic Motion. Its motion can be described by thefollowing equation y = (0.3 m) sin (10π t + 4) where m is in meters and t is in seconds. What is the per+n q()2 9msrgn o-trqniod of vibration of the mass on the spring?

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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

00.08: A pendulum is pulled to one gafv:9-by 16ym2tkgx side and released. It swings freely to the opposite side and stops. Which of the following might best represent graphs of kib 6x:-2gyy1 vktf9magnetic energy $E_k$, potential energy $E_p$ and total energy $E_T$?

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9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

11.18: The motion of an object mov 6 s+7sh cor5wh*cw+kxing along a straight line is given by the velocity vs. ticr+ c6+khsh sxwow75*me graph shown.
Which one of the following choices best represents the average acceleration of the object during the time interval from t=4.0 sto t=9.0 s?

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10#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

11.19: The motion of- ondxog 6f/5t an object moving along a straight line is given by the velocity vs. time gn/-f do gx56otraph shown.
Which one of the following choices best represents the instantaneous acceleration of the object at the time of t=5.0s?

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11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

12.17: A mass moves according to the graph of position as a function of time snpz kx*dn(j9na *7/h5j6cqkthown*x/7zq 5h j jk*cd69nnn(ktap below.
Which one of the following choices correctly represents the time instants or time interval for which the instantaneous velocity of the mass is considered always to be negative? Lettrepresent time.

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12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

94.05: Amass m; attached to a horizontal massless spring wi 1 jd*m 6ik49it*b;uqbgfhl 0eth spring constant k; is set into simple harmonic motion. Its maximum displacement from its equilibrium position is A. What is the mass’s speed as it passes through its equilibriumku1*q0idhtl b 6i;b94fm *jeg position?

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13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

94.40: A block of mass M is initially at rest on hh:x44p*kmka6go nw*.n : hqz a frictionless floor, as shown in the accompanying figure. The block, attached to a massless spring with spring constant k, is initially at its equilibrium position. An arrok np* :6h: z44hqgxm*wahokn .w with mass m and velocity v is shot into the block. The arrow sticks in the block. What is the maximum compression of the spring?

A. $x= v\frac{\sqrt{m}}{k}$

B. $x= v\frac{\sqrt{k}}{m}$

C. $x= v\frac{\sqrt{M+m}}{k}$

D. $x= \frac{(M+m)v}{\sqrt{mk}}$

E. $x= \frac{mv}{\sqrt{(M+m)k}}$

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14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

01.36: A mass m is attached to a spr p5bz7z k;kck*ri4 zd3hzy22oing with a spring constant k. If the mass is set into simple harmonic motion by a d 3h yiz;2rzk 5dpzbz*c7o2kk4isplacement d from its equilibrium position, what would be the speed,v, of the mass when it returns to equilibrium position?

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15#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

08.48: A block of mass M on a horizontal surface is connected to th6q. juhxu 8nt*e end of a 6uh tu.j8qn* x massless spring of spring constant k. The block is pulled a distance x from equilibrium and when released from rest, the block moves toward equilibrium. What minimum coefficient of kinetic friction between the surface and the block would prevent the block from returning to equilibrium with non-zero speed?

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