2 0,cathode-rays,self_check
3 0,operational-definition,self_check
5 0,bacteria-queue,self_check
7 0,count-sig-figs,self_check
9 0,geometric-mean,answer
10 0,triangle-formula,answer
12 1,axle-ratios,self_check
13 1,square-mm-to-cm,answer
19 1,taxa-scaling,bare_answer
22 1,axle-ratios,self_check
23 1,square-mm-to-cm,answer
29 1,taxa-scaling,bare_answer
31 2,rigid-body,self_check
32 2,gymnastics-wheel,self_check
33 2,t-versus-delta-t,self_check
34 2,delta-x-bouncing,self_check
35 2,inertia-counterexamples,self_check
36 2,light-year-to-meters,answer
37 2,inside-freight-train,answer
40 2,rigid-body,self_check
41 2,gymnastics-wheel,self_check
42 2,t-versus-delta-t,self_check
43 2,delta-x-bouncing,self_check
44 2,inertia-counterexamples,self_check
45 2,light-year-to-meters,answer
46 2,inside-freight-train,answer
49 3,rolling-distances,self_check
50 3,x-graph-to-v-graph,answer
52 3,mars-drop-time,answer
53 3,honeybeeaccel,answer
57 3,graph-bouncing,answer
58 3,ramp-half-speed,answer
59 3,rolling-distances,self_check
60 3,x-graph-to-v-graph,answer
62 3,mars-drop-time,answer
63 3,honeybeeaccel,answer
67 3,graph-bouncing,answer
68 3,ramp-half-speed,answer
69 4,interpret-terminal-v,self_check
70 4,force-or-not,self_check
71 4,time-to-brake,answer
72 4,mass-or-weight,answer
73 4,lowering-climber,answer
74 4,interpret-terminal-v,self_check
75 4,force-or-not,self_check
76 4,time-to-brake,answer
77 4,mass-or-weight,answer
78 4,lowering-climber,answer
79 5,swimming-and-walking,self_check
80 5,static-or-kinetic,self_check
81 5,partridge,self_check
82 5,friction-and-normal,self_check
83 5,find-directions-of-forces,self_check
84 5,combine-springs,answer
85 5,youngs-modulus,answer
86 5,third-law-partners,answer
87 5,box-uphill-partners,answer
88 5,waterbottle-in-space,answer
90 5,swimming-and-walking,self_check
91 5,static-or-kinetic,self_check
92 5,partridge,self_check
93 5,friction-and-normal,self_check
94 5,find-directions-of-forces,self_check
95 5,combine-springs,answer
96 5,youngs-modulus,answer
97 5,third-law-partners,answer
98 5,box-uphill-partners,answer
99 5,waterbottle-in-space,answer
101 6,blown-sideways,self_check
102 6,cannon-range,answer
103 6,blown-sideways,self_check
104 6,cannon-range,answer
105 7,translate-to-vector,self_check
106 7,scale-vector,self_check
107 7,subtract-vectors,self_check
108 7,translate-to-vector,self_check
109 7,scale-vector,self_check
110 7,subtract-vectors,self_check
111 8,acceleration-vector,self_check
112 8,projectile-a-vector,self_check
113 8,annie-oakley,answer
115 8,wagon-uphill,answer
116 8,angle-of-repose,answer
117 8,acceleration-vector,self_check
118 8,projectile-a-vector,self_check
119 8,annie-oakley,answer
121 8,wagon-uphill,answer
122 8,angle-of-repose,answer
123 9,uniform-or-nonuniform,self_check
125 9,tilt-a-whirl,answer
127 9,uniform-or-nonuniform,self_check
129 9,tilt-a-whirl,answer
131 10,gravity-independent-of-v,self_check
132 10,fill-in-inverse-square,self_check
133 10,kepler-hyperbolic,self_check
134 10,mineshaft,self_check
136 10,prove-a-equals-g,answer
138 10,upsilon-andromedae,answer
139 10,geosynchronous,answer
140 10,receding-moon,hint
141 10,receding-moon,answer
142 10,alien-gangster,answer
143 10,gravity-independent-of-v,self_check
144 10,fill-in-inverse-square,self_check
145 10,kepler-hyperbolic,self_check
146 10,mineshaft,self_check
148 10,prove-a-equals-g,answer
150 10,upsilon-andromedae,answer
151 10,geosynchronous,answer
152 10,receding-moon,hint
153 10,receding-moon,answer
154 10,alien-gangster,answer
155 11,spring-energy,self_check
156 11,bulletthroughbook,answer
158 11,aronskeratio,answer
159 11,microwave-waste,answer
160 11,spring-energy,self_check
161 11,bulletthroughbook,answer
163 11,aronskeratio,answer
164 11,microwave-waste,answer
165 12,throw-up-or-down,self_check
166 12,grasshopper,answer
167 12,skater-rolls-off-pipe,answer
168 12,pe-ke-yin-yang,answer
169 12,niagara-hydroelectric,answer
170 12,throw-up-or-down,self_check
171 12,grasshopper,answer
172 12,skater-rolls-off-pipe,answer
173 12,pe-ke-yin-yang,answer
174 12,niagara-hydroelectric,answer
175 13,work-scalar-joules,self_check
176 13,ball-does-work-on-spring,self_check
177 13,breaking-trail,self_check
178 13,work-constant-and-not-constant,self_check
179 13,is-work-conserved,answer
180 13,work-scalar-joules,self_check
181 13,ball-does-work-on-spring,self_check
182 13,breaking-trail,self_check
183 13,work-constant-and-not-constant,self_check
184 13,is-work-conserved,answer
185 14,hockey-pucks,answer
186 14,fridge-recoil,answer
188 14,energy-frames,answer
190 14,hockey-pucks,answer
191 14,fridge-recoil,answer
193 14,energy-frames,answer
195 15,compare-torques,self_check
198 15,toppling-rod,answer
199 15,compare-torques,self_check
202 15,toppling-rod,answer
203 16,solidspressureside,self_check
204 16,heart-efficiency,bare_answer
205 16,solidspressureside,self_check
206 16,heart-efficiency,bare_answer
207 18,damping,self_check
208 18,damping-energy,self_check
210 18,damping,self_check
211 18,damping-energy,self_check
213 19,ribbon-on-spring,self_check
214 19,interpret-waves-on-string,self_check
215 19,ribbon-on-spring,self_check
216 19,interpret-waves-on-string,self_check
217 20,reflected-energy,self_check
218 20,invisible-to-sonar,self_check
219 20,absorption-and-speed,self_check
221 20,guitar-period,self_check
222 20,fish-pattern,self_check
224 20,reflected-energy,self_check
225 20,invisible-to-sonar,self_check
226 20,absorption-and-speed,self_check
228 20,guitar-period,self_check
229 20,fish-pattern,self_check
231 21,typesofcharge,self_check
232 21,inductionneg,self_check
233 21,killbattery,self_check
234 21,hail-an-electron-cab,answer
235 21,measure-on-printed-circuit,answer
236 21,combine-unequal-resistors,answer
237 21,tetrahedron-resistors,answer
238 21,typesofcharge,self_check
239 21,inductionneg,self_check
240 21,killbattery,self_check
241 21,hail-an-electron-cab,answer
242 21,measure-on-printed-circuit,answer
243 21,combine-unequal-resistors,answer
244 21,tetrahedron-resistors,answer
245 22,pointchargefield,self_check
246 22,pointchargevtoe,self_check
247 22,topointerp,self_check
248 22,zero-e-center-of-square,answer
249 22,pointchargefield,self_check
250 22,pointchargevtoe,self_check
251 22,topointerp,self_check
252 22,zero-e-center-of-square,answer
253 23,gammaatvzero,self_check
254 23,gammaatvzero,self_check
255 24,alternator,self_check
256 24,doppler-approaching,self_check
257 24,force-on-wire-in-b,answer
258 24,force-between-wires,answer
259 24,b-from-photo,answer
260 24,field-at-mouth-of-solenoid,answer
261 24,rel-vel-addition,answer
262 24,alternator,self_check
263 24,doppler-approaching,self_check
264 24,force-on-wire-in-b,answer
265 24,force-between-wires,answer
266 24,b-from-photo,answer
267 24,field-at-mouth-of-solenoid,answer
268 24,rel-vel-addition,answer
269 25,lrcsigns,self_check
271 25,caplabel,self_check
272 25,lrcsigns,self_check
274 25,caplabel,self_check
275 26,quantizedmoney,self_check
276 26,reversedthomson,self_check
277 26,hbindingenergy,self_check
278 26,unequalcollisioncons,self_check
279 26,mass-energy,self_check
280 26,beta-decay-charge-conservation,answer
282 26,quantizedmoney,self_check
283 26,reversedthomson,self_check
284 26,hbindingenergy,self_check
285 26,unequalcollisioncons,self_check
286 26,mass-energy,self_check
287 26,beta-decay-charge-conservation,answer
289 27,angular-defect,answer
291 27,tossed-clock,answer
292 27,angular-defect,answer
294 27,tossed-clock,answer
295 28,two-reflections-from-same-point,self_check
296 28,two-reflections-from-same-point,self_check
297 29,move-object-laterally,self_check
298 29,real-do-and-di,self_check
299 29,move-object-laterally,self_check
300 29,real-do-and-di,self_check
301 30,asymptotes,self_check
302 30,virtual-image-location,answer
303 30,image-combinations,answer
304 30,asymptotes,self_check
305 30,virtual-image-location,answer
306 30,image-combinations,answer
307 31,index-of-refraction,self_check
308 31,lenses-flame,self_check
309 31,field-of-view,answer
310 31,constant-thickness,answer
311 31,index-of-refraction,self_check
312 31,lenses-flame,self_check
313 31,field-of-view,answer
314 31,constant-thickness,answer
315 32,diffract-around-body,self_check
316 32,trough-trough,self_check
317 32,single-slit-wavelength,self_check
318 32,radio-telescopes,self_check
319 32,diffract-around-body,self_check
320 32,trough-trough,self_check
321 32,single-slit-wavelength,self_check
322 32,radio-telescopes,self_check
323 33,independent-probabilities,self_check
324 33,interpret-human-height,self_check
325 33,independent-probabilities,self_check
326 33,interpret-human-height,self_check
327 34,extract-planck-from-graph,self_check
328 34,extract-planck-from-graph,self_check
329 35,long-wavelength-electron,self_check
330 35,heisenberg-human-scale,self_check
331 35,heisenberg-raindrops,self_check
332 35,schrodingerassumptions,self_check
333 35,walkthroughwall,self_check
334 35,long-wavelength-electron,self_check
335 35,heisenberg-human-scale,self_check
336 35,heisenberg-raindrops,self_check
337 35,schrodingerassumptions,self_check
338 35,walkthroughwall,self_check
339 36,find-l-from-picture,self_check
340 36,tabulate-hydrogen,self_check
341 36,find-l-from-picture,self_check
342 36,tabulate-hydrogen,self_check