[armin.vanb]

1 MINUTE ONLY - NO CHEATING !!! - post your answers below



http://i.imgur.com/wV0GV.png





















My answers:

All equal
G
M
R

[Spartacus]

A
G
m
R

[Simplex123]

1. A
2. G
3. M
4. R

[dinosaur]

agmr

[V4NC1TY]

A
G
M
R

[ruthless]

AGMR

[Grim]

A
G
K
R

[Spectre_Cdn]

AGKR

[Simplex123]

LOL OP your answer's wrong

[Zyzz]

This thread sucks.

Here is my own question.

10 people are lined up facing one direction, so each of them can only see the people infront of them. A randomized colour, white or black, hats are placed on top of each person's head. These people cannot see their own hats and can only see the colour of the people's hats infront of them.

Each person will be asked the colour of his own hats starting from the back, i.e. the person who sees all the hats. Each person will be allowed to say black or white only, and if hes wrong, hes dead, and if hes right, he lives.

Think of a solution that 9 people survives.

[armin.vanb]

This thread sucks.

Here is my own question.

10 people are lined up facing one direction, so each of them can only see the people infront of them. A randomized colour, white or black, hats are placed on top of each person's head. These people cannot see their own hats and can only see the colour of the people's hats infront of them.

Each person will be asked the colour of his own hats starting from the back, i.e. the person who sees all the hats. Each person will be allowed to say black or white only, and if hes wrong, hes dead, and if hes right, he lives.

Think of a solution that 9 people survives.

http://i.imgur.com/pzbRr.gif

[Zyzz]

and you even got your own answers wrong too on this simple question OP before the edit

what a fucking retard

[mb_]

AGKR

[AzNightmare]

All of you guys answers G... Can you guys explain.
I see that the boat is the lowest. But isn't the water line on things
floating in water dependent on the overall size of the object?

I could be wrong of course. But i'm thinking like how when you see an iceBerg,
There's an equal amount under water that there is sticking up above the ocean.

So a boat lower to the water just means the bottom in not as deep?
Not necessarily more heavy?
Posted via RS Mobile (http://www.revscene.net/forums/announcement.php?a=228)

[jpark]

and you even got your own answers wrong too on this simple question OP before the edit

what a fucking retard

lol usomad

anyways..
A
G
M
R

[rocksforsale]

10 people are lined up facing one direction, so each of them can only see the people infront of them. A randomized colour, white or black, hats are placed on top of each person's head. These people cannot see their own hats and can only see the colour of the people's hats infront of them.

Each person will be asked the colour of his own hats starting from the back, i.e. the person who sees all the hats. Each person will be allowed to say black or white only, and if hes wrong, hes dead, and if hes right, he lives.

Think of a solution that 9 people survives.
since you didnt mention if they are allowed to communicate or if they can only say one word:

if the first person tells or yells everyone's colors out
OR
if the first person sacrifices himself and says the color of the person in front of theirs and so on. But then again if the first person guesses right, 10 ppl all survive

"proper answer" where they arnt allowed to communicate
The prisoners can use a binary code where each blue hat = 0 and each red hat = 1. The prisoner in the back of the line adds up all the values and if the sum is even he says "blue" (blue being =0 and therefore even) and if the sum is odd he says "red". This prisoner has a 50/50 chance of having the hat color that he said, but each subsequent prisoner can calculate his own color by adding up the hats in front (and behind after hearing the answers [excluding the prisoner in the back]) and comparing it to the initial answer given by the prisoner in the back of the line. The total number of red hats has to be an even or odd number matching the initial even or odd answer given by the prisoner in back.

[Gumby]

All of you guys answers G... Can you guys explain.
I see that the boat is the lowest. But isn't the water line on things
floating in water dependent on the overall size of the object?

I could be wrong of course. But i'm thinking like how when you see an iceBerg,
There's an equal amount under water that there is sticking up above the ocean.

So a boat lower to the water just means the bottom in not as deep?
Not necessarily more heavy?
Posted via RS Mobile (http://www.revscene.net/forums/announcement.php?a=228)
I had the same thoughts - but if you look at the question again, it states that all 4 ships are identical (in size). Therefore, you can deduce that G has the heaviest load.

[MG1]

^Unless the ballast tanks are unequal...........

A
Cannot tell
M
R

[carisear]

This thread sucks.

Here is my own question.

10 people are lined up facing one direction, so each of them can only see the people infront of them. A randomized colour, white or black, hats are placed on top of each person's head. These people cannot see their own hats and can only see the colour of the people's hats infront of them.

Each person will be asked the colour of his own hats starting from the back, i.e. the person who sees all the hats. Each person will be allowed to say black or white only, and if hes wrong, hes dead, and if hes right, he lives.

Think of a solution that 9 people survives.

pretty easy. guy at back yells out colour of everyones hats in order, and then to increase his odds of survival, chose his colour based on whichever colour he sees less of.

btw, is the op in grade 3?

[rocksforsale]

^Unless the ballast tanks are unequal..........

lol lets not get technical here

and can someone explain each answer? i just want to know if my reasoning is right

A-smallest wheel=smaller diameter=>smaller circumference, so less "ground to cover" when rolling

G- identicle sizes, and the deepest one into the water has more load

M- when water reaches it, the protruding contact point will absorb/divert the energy/impact

R - bigger handle? too obvious?

[Gumby]

lol lets not get technical here

and can someone explain each answer? i just want to know if my reasoning is right

A-smallest wheel=smaller diameter=>smaller circumference, so less "ground to cover" when rolling

G- identicle sizes, and the deepest one into the water has more load

M- when water reaches it, the protruding contact point will absorb/divert the energy/impact

R - bigger handle? too obvious?
I agree with your reasoning, except I'm not too sure about the dam question...

As for Question #4, I can't really explain it, but it has something to do with the distance from the pivot point/fulcrum. :D

[xilley]

AGMR

[Hehe]

A
Can't tell (because commercial boats are designed to be able to control its height relative to cruise condition)
M
All the same because there is no option for can't tell... you can only make certain if you know the size of the thing (assuming fingers in this place) and points pf applying pressure. Assuming it's dead center for all 4 and finger is same size as the smallest key (so the biggest key isn't distributing the weight in a wider area)... it's all the same.

[tiger_handheld]

A
F
L
R

[BillyBishop]

Other than the question about the dam that most people probably don't know the answer to, the other questions are dead giveaways compared to other tests that mock common-sense.



A
G
M
R

[CP.AR]

This thread sucks.

Here is my own question.

10 people are lined up facing one direction, so each of them can only see the people infront of them. A randomized colour, white or black, hats are placed on top of each person's head. These people cannot see their own hats and can only see the colour of the people's hats infront of them.

Each person will be asked the colour of his own hats starting from the back, i.e. the person who sees all the hats. Each person will be allowed to say black or white only, and if hes wrong, hes dead, and if hes right, he lives.

Think of a solution that 9 people survives.
lol the classic hat question.
if it wasn't because of that question I would have never passed MATH302

[jimzilla]

agmr

[MG1]

and you even got your own answers wrong too on this simple question OP before the edit

what a fucking retard

Why can't we be friends?

[maxxxboost]

A
Cannot tell
M
Q

[bloodmack]

A G M R i was expecting real questions.

[RRxtar]

AGMR did not have to look more than a glance.

do more

[Simplex123]

^ Here's more
Test 21 (http://stevejjones.dyndns.tv/tests/test21.htm)

[fishCak3s]

agmr

[rocksforsale]

^ Here's more
Test 21 (http://stevejjones.dyndns.tv/tests/test21.htm)

all of em are pretty easy except this one.. Test 24 (http://stevejjones.dyndns.tv/tests/test24.htm)

or im just bad with numbers

[AzNightmare]

I had the same thoughts - but if you look at the question again, it states that all 4 ships are identical (in size). Therefore, you can deduce that G has the heaviest load.

Yeah, I misread the question. Didn't see the "identical"
I don't think the logic behind this question is supposed to be so complicated
with ballast tanks being involved. So I would have picked "G" then.

:lol I messed up the first question. My first response was "C"
cause I thought big wheel means faster rotation (on the outside)

[Manic!]

Q
X
T
R

[Greenstoner]

agmr

[Gridlock]

For anyone that disputes the dam question.

Hoover. End of Story. It's concave towards the water for a reason. Arches are the strongest form, put the strong part towards the pressure=win.

[b0unce. [?]]

A
G
K
R

I agree with your reasoning, except I'm not too sure about the dam question...

As for Question #4, I can't really explain it, but it has something to do with the distance from the pivot point/fulcrum. :D

leverage? easier to turn? that was my assumption.

[Gridlock]

http://www.visitingdc.com/images/hoover-dam-directions.jpg

[BillyBishop]

Hoover. End of Story. It's concave towards the water for a reason. Arches are the strongest form, put the strong part towards the pressure=win.

I think you mean convex towards the water. Concave would be worse than a straight dam.

[systane]

agmr

[CP.AR]

there's a reason why most dams are built like that

it's shaped like that so most of the force is spilled towards the land mass and not perpendicular to any section of the dam (minus the exact midpoint of course)
lower dams can be built as a "straight line" simple because of the lack of vertical pressure.

[mr_chin]

1. All equal
2. G
3. M
4. R

[Boostaholic]

A G M R

[FerrariEnzo]

A
G
M
R

[Excelsis]

i just looked at other RS members so

AGMR

:ilied:

[twitchyzero]

i only got 2/4 right haha
i was staring at the boat one for a while...didn't read the word identical because i was pressured to finish it in 15 seconds.

was also staring at the dam one for a long time...didn't know which angle i was looking at the damn thing :fail:

[strykn]

Strong thread copy from misc.

and supposedly the real answer is not AGMR, hold up.

here u go:
c: this ones easy. larger wheels (higher radius) need to turn/spin faster to keep up with the smaller radius ones. simple angular velocity problem.
f: all the ships are the same, except some are more submerged than others. the one that is submerged the least has the highest load since it needs the largest buoyancy force to keep it afloat so high.
n: triangles. they have unique properties (some type of geometric properties, i forget exactly) that make it very difficult for the water to break it.
q: since the key with the smaller handle is closer to the rotating shaft, it will require less effort - pretty simple.

theres actually a lot of solid arguments on different variations of answers also

[FeistyBearH22a]

Fack im an idiot
A
G
M
R

[JSALES]

A
G
M
R

[Gumby]

c: this ones easy. larger wheels (higher radius) need to turn/spin faster to keep up with the smaller radius ones. simple angular velocity problem.
This couldn't be more wrong.

Imagine wheel A with diameter d, and wheel B with diameter 2d.

To go a distance of d, wheel A turns once, whereas B only makes a half turn. Therefore, wheel A is turning faster than wheel B!

You're applying angular velocity to the wrong problem.

[MG1]

think of gears............

[RFlush]

But if they are all moving at the same time, like a truck with one big wheel and one small wheel moving at 1km an hour, won't they be moving at the same speed? It's not saying which one goes around faster, just which one moves faster.

I don't know, I don't remember much from physics class.

[falcon]

AGMR

[SkinnyPupp]

Strong thread copy from misc.

and supposedly the real answer is not AGMR, hold up.

here u go:
c: this ones easy. larger wheels (higher radius) need to turn/spin faster to keep up with the smaller radius ones. simple angular velocity problem.
f: all the ships are the same, except some are more submerged than others. the one that is submerged the least has the highest load since it needs the largest buoyancy force to keep it afloat so high.
n: triangles. they have unique properties (some type of geometric properties, i forget exactly) that make it very difficult for the water to break it.
q: since the key with the smaller handle is closer to the rotating shaft, it will require less effort - pretty simple.

theres actually a lot of solid arguments on different variations of answers also
Are you :troll:in or :troll:ed?

:troll:

[Nightwalker]

A G M R

[nack]

A
G
M
R

[sindragon]

how do you guys get M for an answer.... :fulloffuck: or u guys are just copying/pasting each other. I do not see how it is the answer@!!!

[cressydrift]

1 MINUTE ONLY - NO CHEATING !!! - post your answers below



http://i.imgur.com/wV0GV.png



A - Smaller wheel faster rotation
G - Lowest in water
M - Point of contact diverges water pressure
P - The handle that is the biggest is to big, and with a stiff lock it will break, so I choose the 3rd largest handle which has the best grip/strength ratio

[V4NC1TY]

P - The handle that is the biggest is to big, and with a stiff lock it will break, so I choose the 3rd largest handle which has the best grip/strength ratio

It's assumed that the key won't break. Leave out the factor of it breaking
The question's just asking which key would be the easiest to turn

[!SG]

heres my understanding of the questions
1) a, smallest wheel = smallest circumference, if comparing to C, the circumference is far greater than a, so to a set variable of distance, a would have to turn faster in order to cover the set distance compared to C and other options

2) the key term is identical ships, and the only variable is load. thus all else equal, the one that sits the lowest on the water line = the one is closer to displacing the same amount of water that it occupies. if the load/mass is equal to the displacement of water from the ship, ratio 1:1, then neutral buoyancy is achieved thus, lowest in water is G, because stated in the question is "identical ships".

3) here is an easy experiment, you push ur arms on the side of an entry way, with someone applying force behind you. its much easier to hold that force back than if you were pulling with ur arms from the entry arch way. in essence, this basically an arch. instead of pressure and force of the water it is holding back, think gravity.

4) turning requires TORQUE, torque = force x distance. distance from the center of the key to the outer edge of the handle more distance assuming you have a set amount of force = more torque. example, think of a screw driver, whats easier to turn or loosen a stuck screw, a dinky little screw driver, or one with a huge ass handle? or a standard 6in ratchet over a 2ft breaker bar.

[Gumby]

4) turning requires TORQUE, torque = force x distance. distance from the center of the key to the outer edge of the handle more distance assuming you have a set amount of force = more torque. example, think of a screw driver, whats easier to turn or loosen a stuck screw, a dinky little screw driver, or one with a huge ass handle? or a standard 6in ratchet over a 2ft breaker bar.
Best explanation for #4. :) :thumbsup:

[TMT]

agmr

[bobbyhill]

heres my understanding of the questions
1) a, smallest wheel = smallest circumference, if comparing to C, the circumference is far greater than a, so to a set variable of distance, a would have to turn faster in order to cover the set distance compared to C and other options

2) the key term is identical ships, and the only variable is load. thus all else equal, the one that sits the lowest on the water line = the one is closer to displacing the same amount of water that it occupies. if the load/mass is equal to the displacement of water from the ship, ratio 1:1, then neutral buoyancy is achieved thus, lowest in water is G, because stated in the question is "identical ships".

3) here is an easy experiment, you push ur arms on the side of an entry way, with someone applying force behind you. its much easier to hold that force back than if you were pulling with ur arms from the entry arch way. in essence, this basically an arch. instead of pressure and force of the water it is holding back, think gravity.



1. all 4 wheels " turn " at the same rate since they're on the same vehicle, it's not asking for which wheel makes the most " rotations ", hence they're all equal

2. you're not taking into account the buoyancy and the ballasts. ever wonder why cargo ships with a lot of cargo still sit relatively "high" in the water? It's because they increase their buoyancy with air in their ballasts.

3. You didn't take into account the slope/gradient.

[V4NC1TY]

LOL everybody's over-analyzing the questions; just assume that there are no factors involved
it's a simple 1-minute test that exercises your ability to judge
it's not like you'd be able to do all those calculations in the allotted time anyways lol

I still believe in AGMR :lol

[!SG]

fair enough, but if your arguement was true for #1, then i would never see a customer come in complaining about the abs light, tmps trigger on, and customers complaining how their speedo is now out of sink with their gps speed due to aftermarket wheels with oversized or undersized tires. overall diameter is greater on the wheel = greater circumference. cars abs/wheel speed sensor is now calculating the difference, so it thinks the car has a flat, hence trigger the tpms error to turn on.


2, wont argue with you on that, as i didnt take into account ballasts inflated air, so yes, i will actually agree with you on this one.

3, there is only so much information provided from a 2 dimensional drawing. nor was their a structural integrity test and examination over the structure. either way, it should still be strong to house megatron if the time is needed.


1. all 4 wheels " turn " at the same rate since they're on the same vehicle, it's not asking for which wheel makes the most " rotations ", hence they're all equal

2. you're not taking into account the buoyancy and the ballasts. ever wonder why cargo ships with a lot of cargo still sit relatively "high" in the water? It's because they increase their buoyancy with air in their ballasts.

3. You didn't take into account the slope/gradient.

[Hehe]

The thing about over-analyzing is that the questions themselves were poorly made.

There are many things that depend on them. The answer for 4 for example, if one make absolute 0 assumption on how the key is being turned (the point where the force is applied, how is it applied... etc) , none of them are correct answer.

[SkinnyPupp]

Since people STILL aren't getting the first one, I made this to help you visualize:

http://i.imgur.com/1O2BU.jpg

Now picture the tractor moving, and all wheels spinning. How many times do you think the white line reaches that position on the small wheel before it does on the largest wheel?

Now remember, the line goes all the way to the hub.

So the smaller a wheel is, the faster it turns.

[bobbyhill]

^ but the axles rotate the same since they're from the same vehicle, so essentially they "turn" at the same rate. this isn't in regards to the total # of "rotations" it makes. they all equally " turn " at the same rate.

[SkinnyPupp]

The axles with the smaller wheels on them will turn faster

If you still don't get it after that visualization then I don't know what to say

[hsh4]

they dont turn at the same rate b/c the smaller one needs to turn faster to make up for the distance b/c its smaller. so to keep the tractor going at 10 km/h the smaller one needs to turn faster

[!SG]

if your argument is true, then having 2 tires of completely different sizes will not affect vehicle speed?

there would be no point in transmissions, and gear ratio's as they would all rotate at the same speed no matter what size they are.


think of it this way, a large dog strides along easily during a walk, while a small little dog has to frantically run faster to keep at the same pace, why? because for every large step of the long legs of the larger breed dog, requires the itty bitty dog to take 10 small steps. the rotation of the longer leg, allows for a longer circumference thus, a longer stride.



^ but the axles rotate the same since they're from the same vehicle, so essentially they "turn" at the same rate. this isn't in regards to the total # of "rotations" it makes. they all equally " turn " at the same rate.

[Gumby]

Looks like the answer to thread subject "How smart is REVSCENE" is one of the following:

a) not very smart
b) too smart for itself

[jplus]

A-G-M-R

[melloman]

AGMR

[RFlush]

Since people STILL aren't getting the first one, I made this to help you visualize:

http://i.imgur.com/1O2BU.jpg

Now picture the tractor moving, and all wheels spinning. How many times do you think the white line reaches that position on the small wheel before it does on the largest wheel?

Now remember, the line goes all the way to the hub.

So the smaller a wheel is, the faster it turns.

It's not asking which wheel completes a full circle faster, it's asking which one moves faster. If the truck is moving 1km an hour, they are all moving at the same speed. One wheel can't move faster than the other since they are all dependent of each other wheels movements.

[SkinnyPupp]

Read it again.

"Which wheel turns the fastest when the tractor moves?"

[RFlush]

Read it again.

"Which wheel turns the fastest when the tractor moves?"

It's nice to see you not bold the important factor of the tractor moving. First, a kart has no differential and both wheels, regardless of size, are forced to move at the same speed due to being on the same common axle.

Second you can obviously tell that the ground is not a flat surface. Whether this was intended or not is not clear. Regardless, tractors on soft conditions will have diff-lock overrides forcing both wheels to turn at the same speed to help improve traction and reducing wheel slip.

[SkinnyPupp]

:facepalm:

http://i.imgur.com/XFQUq.jpg
http://i.imgur.com/muC5g.jpg
http://i.imgur.com/KYLx3.jpg
http://i.imgur.com/XhCEr.jpg
http://i.imgur.com/HpVY5.jpg
http://i.imgur.com/UuRu9.jpg
http://i.imgur.com/Gb8q7.jpg
http://i.imgur.com/dP6nU.jpg
http://i.imgur.com/ZSu99.jpg
http://i.imgur.com/2cEwy.jpg
http://i.imgur.com/1DXp0.jpg
http://i.imgur.com/Wf57e.jpg
http://i.imgur.com/heN8C.jpg
http://i.imgur.com/blfxS.jpg
http://i.imgur.com/dxr41.jpg

[Excelsis]

this thread really turned into which answer is right?


:rofl::rofl::rofl::rofl::rofl::rofl::rofl:

[Fappin]

A
G
N
R

[Noizz]

Oh gees... this tractor thing is ridiculous...

Don't make it any more complicated than it already is :suspicious:

Hopefully this makes if easier to understand...

http://www.youtube.com/watch?feature=player_detailpage&v=D_i3PJIYtuY#t=130s

All the wheels would be independent of each other as we are looking from only one side. If they shared a common axle, the same wheel on the OTHER side would be at the same speed.

Just an FYI, trailers/karts would NOT share an axle, because if they were a whole lot of people would be dead when trailers/karts go around corners. (wheel turning in a smaller radius will move slower than a wheel turning in a larger radius)

They NEED to be independent as the distance traveled is different for each wheel
http://www.micromouseonline.com/wp/wp-content/uploads/files/cannock-site-images/turn1.gif