This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: [1] A lﬁﬂkg child is sitting on a playground teeter—totter, 1.50 m from the pivot. What
force, applied 0.300 m on the other side of the ,Ipimt1 is needed to make the child lift oﬁ'
the ground? [.1] 3.311 s [s] 311.4 N [C] 13.3 N [D] 111 .s @133 N [2] .11 5110111 radius playground merryugoaround with a moment of inertia 2000 lrgon2 is
rotating freeiy with an angular speed of 1.0 radfs. Two people, each having a mass of
60 kg, are standing right outside the edge of the merrypruned and step on with negligible
speed. “rile.1 hi the angular Speed of the memgmround right after the; two people have
stepped on?
@1110 radf's [3; 3.53 ado [e] 11.31 radfs [u] use rattle [E] 1.11 rel/s [3] The mass of Pluto is 1.20 x 1033 kg audits radius is 1.15 x 105 111. 11150111.! is the value ofg
at the surface of Pluto? 0.651 171,731 [Bf1AG refs2 [C] 3.1"? mfeii [DJ 5.33133}?z [E] 3.81 111;"‘5g [41 Era11115 tfﬂmpletes one resolution about its own axis every 11.24 hours. What is the radius
of the orbit required for a satellite in reimlve about Uranus with the same period? Uranus
has a mass 013.69 x 1025 kg. [11: 1.45 x 10“ 1:11 @321 x 10Ir m [C] 11.03 X 101' m [D] 2.55 X it]Ii m
[E] 3.41 3: 111a 11:1 l5. Fiﬁd the minimum kinetic energjr needed for a 251,000113 rocket to escape the earth. The
mass of the Earth is 5.93 >1 10“ kg, and its radius is 5.37 x [0'1 :11.
[115.51 x 131:1 £319.13 x 13” 1 @1.32 21:10‘2 J [1113.31 x 101* 3
[1111.31 :1 In“ .1 [5 “711151: a mass of 0.350 kg is attached to a vertical spring and towered sterilityj the spring
stretches to 12.0 cm. The mass is now distilaced from its equilibrium position and undergoes
simple harmonic oscillations. What is the period of the oscillations? lAI 0.0?69 3 [Bi {1.233 3 .11.:393 a lo] 1.1.4 5 [s] 2.33 s W A Christmas ornament made from a this hollow glass sphere hangs from a small 11001: at
itﬁ sulfate. It is observed to oscillate with a frequency of 2.50 Elie. What is the radius of
the ornament? The moment Ofisertia of a hollow sphere of mass M and radius R. about a
point on its edge is gM’R‘. [11] use cm [3} 0.112 cm [C] 1.341131 @2.39 am Is] 3.93 cm [3] The vertical displacement of a string is given by
y(::,t] = (£1.00 mmjcosﬂﬂﬂﬁ In“): — (7.22. 3—1}1‘.].
“that is the speed of propagation of the wave?
1.1! 11.433 mfg 11] 1111 nus .222 refs [11] 3.13 mjs [at 5.31 rugs it}. A 13 tube. is open to the atmosphere at both otldﬁ. Water is primed tutu the tube Llhtil the
water rises partway along the straight sides, and then some oil with a density 01' E120 lrgfu‘ia
is poured into one end. That causes the water emface on. that side ofthe tube to go down
by 5.5 mm: and the water surface on the other side to go up by the same amount. How
much higher is the top surface ofthe oil on that side of the tube compared with the surface of the water on th other side of the tube?
1,151.] [1.12 11111160315 mm iC]1.E mm lD]1.1:m [E112 em E1111: .51 spar buoy consists of a. circular cylinder, which ﬂoats with its axis oriented vertically.
011:3 Each buoy has a radius of 1.00 1:11. a height of 2.1.111 1:11 and weighs {10.0 hN. “that portion
of it is submerged when it is ﬂoating in fresh water? [11] 1.13 m {11] 1.211 ru [(1] 1.35 1:11.130 m [E] 1.35 m [11; An air—tract: cart of mass m1 = 3.4!} kg an a Erintionluss horimntal air trim]: is Httachcd
It: the end of a string 15121.: goes over a frictionless pullczy with a. moment of inertia.
I = 8.0 x 10—5 lzgm2 and a radius R = 2.0 cm. The string is pqucd vettically downward
by the force due to a mass m; : 0.20 kg hanging on its other and. Tutu: g 2 1H nan/s”, and
ﬁnd (a) the tension T1 in the string between the: cart and the Fultcm [1}] the teslsimn T3 in the string between. tin: pulley and the hanging mass, (11) HIE magnitude :1 of the acceleration of the cart. C9 '71.: “Jr”: ”W [12] An air—track. mm. is uHuchtd to a spring and compktes one oscillation awry 5.2.5.3 5. At
r. 2 H the car’r is released at a distance 01' [LEE ":1 from iis equilibrium position, in the +1
direcLimL. {it} Write an :quatiuu that describes the motion ofthe can't {namely its positinn a: as: a. function
of the time I}. {M ‘What is. 1hr. IllaxiHLal velocity and acceleration of ﬂu: cart? [ﬁll “That is 1hr: pusitian, velociLy and acceleratian of the. can: at f = 28.2.? 5'! T: (“2,3355 A: {main w;&l:———:f.t300'___:fluno§, (it) AzAmw—f 0’1; “New;
3:20.19“ CtI/H'frouajé) {F1 34': QLDIHCLQCEHEEE—SJ Q: ~sz cum2‘ (C) 122,31}; wt": 43%: :wm: 51,9017 m; X = (Liam &U(%‘UDWW'):H 0 LG “'4
U': — GymLow? Ea, (rimEILW! : at”) %
_3_ .1. . _ . _
UL G.) x. ~[f.uw}L(U.LD}'§; .. +£13.34.
sL __————————__. [13] What an airplane ﬁle5 1:0Iianntally at an altitude Where the density of 351' is 1.20 kgfm'a
and g = 9.86 mfsri‘= aha air ﬂows with 3. Spend of 120 refs mm the upper surface of its
wings; and W513]. a. speed of 11D me (War thnir boitcrm surface. {E} Find the preseum diﬁerence between the two sides of the wings. On which side I5 51, higher? 1:13) What must be the are: of the wingﬁ if the total mas of the plum: '15 LEN] X 10‘: kg? (P 1
a) (emu: : “We new = @‘zEvgegu
Since 1.4.1: ML (glam. Hie: 'haerﬁmu‘D we. ”IrLumie— e‘P: T141: {g} (6”?)
: L20 {In} WE'L ‘t m L
75 [(4100 (Lo/5)]
5P *3 [SS’xHUETpa. In) (Rewind! (EggEmma. VizJun; ufwMCL {arm {NH—n)
“Thai" mu£+ kahuna ﬂame} umbhi.‘ APR = mg kins!
‘4 t.
AWE! : “INE 3 Ueexlo L5) ($20 ml; )
15F” LEE’HOS Tale A _ L
“1;an  7i .0 w. FDRMULAE SHEET Relative velocity: T?” = LI“. + LIMI 5:” 2 ~17” Motion m. cunt—taut acceleration: 1:5 E a“ = U], ml— ..—. 1“: Cl] 13:. = 3’3?‘
'I'Jm=vu:+a=.l',, :1:=zn+1ii_.l, z=zu+vﬂﬁ+§c=lnl “3:1”? 2a:{:—zn) Free fall and projectile motion: 63: gﬁﬂn : 9.3] Huff, R = W Newton's Laws: fut = Z}: = mi. EBA = — iiiH “Eight: 13$“ 2 mglI—ﬂ], friction: 1kinetic: f}, = .I'ikNI static: f, 5.: H,N 1' Springs: F, r —m, circular mutlun: a” : ‘H—f]: 3:], _ —j{—1=] Work and Energy": w = Fri: Ficusﬂ, I1: = E‘fi )3 W = Mi, 15 = EEC =Flaj
We = —.ﬁU Hg = mgy, u. = ’5: . E = K+ U. Wm = cc Impulne and Momentum: E: mﬂ'. I = F13: = ﬂuff
If the ::::t external impulse. iﬁ Hum than 117m: 2 2.17: canst
Two particle collisinn: rm'ﬁ'11+ maﬁgi = mlﬁ'” + mafzf, completely inelastic: El} :1?” Elastic collisiun: . I1"; = h}, in one dimension: vgf  1J r— — 1'11—1‘fni
Center of mines: 1m = int“Hf Emh 55m = Flut. TWl‘Fl' F_ — 11%
Rutatiunal Motion: 211' rad_ — l rev = 350*. a = w. L: = g, m = LI:. 5: = ﬁ‘f
w=wn +r1E: .ztIzau+I'“II+“"!= ﬂ=ﬂg+wu£+éutz, w‘I_wl'§+ Enfﬂ—ﬂa]
in; .— rw‘ HEP = Irma... cl, = Tﬂi, E 2: 5:11  ﬁg: rolling mation: '1: '—“ II” n == I].l
_ E:
Rotational. kinetic energy: Km; 2 I34, I = EmirE, K: —:“1  I‘m”—
Torque: T::'4_F:rRl.=rFsinﬂ: TneLZETZIE=% work' W1ni —T5'3'
Angﬂm‘ mﬂmentum: L = Tpsinﬂ = Iw, if Tut“: = U then Lt.“ = const
 _. rm 11': — I "a a: 3m.
Grawty: II” ="_P1.:_1[—;,2)1 13:36?le ”[1?“ i—,=gM, LIB :J—h“
Dﬁcillatiuns: .1: n ﬁcoswt, 'L‘ —' —Awsinwi, a: = —Aw3 mam! u —w=::
_ T . '.J __ I: _ m ___ r L ‘_ a r l I
f—‘Ti—aq1AWr1'l/EI. T— 211T "kl Twﬁﬁﬁ, T—Ju‘r'gmg
 — — 3— _. ' . _ ﬂ
Waves: TJ— — — Af y[=. t]— .4 ma[—;{ {3 NJ] stung. v — 1'} m Sound: n = 3:13 mfg: I: g = $5, .3— _ Lologmn}, In = 1:14in Fluids: Fe. pw=mﬂn§§ P=‘—'"', Pm=latm=151kPa1 Pg=P—Pn A P2=P1+pyh. if—ff1 Fan; =pqLZu'u5r. git2:11: w const, P+£l.:—=+pgy=coust ...
View
Full Document
 Fall '08
 Ashkenkai
 Physics

Click to edit the document details