If an object has no acceleration is it safe to say that no forces are acting upon it?

Plz help me!!!








Answers must be 3-4 sentences!! =) Thank You!!If an object has no acceleration is it safe to say that no forces are acting upon it?
rest your pencil on the table.... it isn't moving, right? it would appear no acceleration is being applied to it, and no forces are acting upon it.





but we know that's not correct.


- there is a gravitational force that is being applied to it.


- there is the upward force of the table being applied to it also so it doesn't fall.





what happens here is that the forces balance out, so there is no NET acceleration, but there are indeed many (balancing) forces acting upon the pencil...If an object has no acceleration is it safe to say that no forces are acting upon it?
No!


It has potential energy.
3 to 4 sentences? Jeez. If you are standing still you are not accelerating but you have the force of gravity pulling you keeping you on the ground. Hope that helps get you started
No, it just means the forces are in equilibrium. For example, gravity is always affecting you, but the ground is exerting an equal and opposite force called the Normal Force.

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How can you find the mass of an object?

Using a beam balance.


Or use formulaes. For eg, Mass=Volume X Density.How can you find the mass of an object?
Put it on a balance.How can you find the mass of an object?
It's easy, just use the formula mass/volume!
well you look to the lower half of the body..usually situated on the lower back..they are 2 mounds of flesh...ohhhhh mass
V (over) D

Looking for a fish game - kind of hidden object game?

I played the game before but I can't find it anymore:( It was where you go down in the ocean and the timer is your air tank I think. You have to take pictures of certain kinds of fish to get points.Looking for a fish game - kind of hidden object game?
Oddly, I don't remember the name and yet I know where the game is, lol. It's on http://www.bigfishgames.com/





I did a trial download of the game from that site (a site I have used and trusted for nearly three years) but didn't buy the game. I'm sorry I can't recall the name. If you like Hidden Objects games, as I do, the best I've found is the Mystery Case Files series, especially their Prime Suspects game. (They also have Huntsville Alabama, Ravenhearst, and I believe a fourth one that I didn't like as much. I far preferred Prime Suspects and Ravenhearst.)

If you double the weight of an object, will it's acceleration be twice as large or half as large?

This is in the absence of friction and other forces.... thanks in advance.If you double the weight of an object, will it's acceleration be twice as large or half as large?
weight = mg





F = ma


mg = ma


a = mg / m = g





for weight = 2mg


F = ma


2mg = ma


a = 2mg / m = 2g





2g is 2 times greater than g, so it doubles the acceleration.





Note, this is only true if you double the g constant, not the mass, because the mass cancels when solving for a. You can see this easily, if you drop a 1 pound ball and a 2 pound ball, both accelerate at the same rate. If you were to drop a 1 pound ball on the moon and on the Earth, you would see the ball accelerates more quickly on the Earth because g for earth = 9.8 and g for the moon = 9.8/6If you double the weight of an object, will it's acceleration be twice as large or half as large?
Your question is not clear. If you are dropping a two pound weight and a four pound weight, the acceleration will be the same. In this case the force is not fixed.





If by weight, you mean mass, and your force is constant, then the acceleration will be cut in half.





If the weight is doubled by doubling gravity, then the acceleration will double.





Is there a chance you are confusing 'weight' and 'mass'?
I believe F = MA would be the equation to use. Assuming that the force stayed constant, the acceleration would be half as much if the mass doubled.





Solving for A, A = F/M , so, If the new mass was twice the old mass, the new acceleration would be half.

An object moving a 30 m/s to the right begins to accelerate at 5 m/s^2 to the left for 3 seconds.?

Then the question is. What is (a) the displacement and (b) the velocity of the object after 3 seconds? (Include direction in your answer.)





I need help on this physics question because my physics teacher isn't really good at teaching us haha. Well please help and thank you.An object moving a 30 m/s to the right begins to accelerate at 5 m/s^2 to the left for 3 seconds.?
If your object is moving to the right and it undergoes an acceleration to the left, this is a negative acceleration - the car is slowing down. Using basic motion equations we can solve this problem. Let's identify what variables we need that the question gives us:





Acceleration = - 5 m/s^2


Time = 3 s


Initial velocity = 30 m/s [right]


Final velocity = ?


Displacement = ?





For a), we need to solve for displacement.


Displacement = (initial velocity)(time) + 0.5(acceleration)(time)^2


= (30 m/s [right])(3 s) + 0.5(- 5 m/s^2[right])(3 s)^2


= 90 m [right] + (-22.5 [right])


= 67.5 m





For b), we need to solve for the final velocity after it has travelled this far.





final velocity^2 = (initial velocity)^2 + 2(acceleration)(displacement)


= SQRT (30 m/s [right])^2 + 2(- 5 m/s^2[right])(67.5 m)


= SQRT (900 m/s [right] + (- 337.5 m/s [right])


= SQRT 562.5 m/s [right]


final velocity = 23.72 m/s [right]





The SQRT mean you must take the square root of whatever your answer in brackets is since the variable we are solving for is squared.


These equations are given to you in grade 11 I believe - it's best to memorize 'em!

An object is thrown vertically into the air?

An object is thrown vertically into the air. Because of air resistance, the time for its descent will be:





longer than the ascent time.


shorter than the ascent time.


equal to the ascent time.


not enough information given to sayAn object is thrown vertically into the air?
equal to the ascent time.An object is thrown vertically into the air?
In general the descent time will be longer. When the object is launched at some speed v it is slowed down by gravity and air resistance. When it stops at its highest point and begins to fall gravity works to speed it up while air resistance fights to slow it down.





Thus on the way up both are working to slow it down (maybe it slow down and stop quickly). On the way down the two fight each other and the object accelerates slower (thus taking longer to return to the surface).





I hope that helps!

An object with a charge 4 C and a mass 0,5 kg accelerates from rest to a speed of 21 m/s.?

An object with a charge 4 C and a mass 0,5 kg accelerates from rest to a speed of 21 m/s.





1. Calculate the kinetic energy gained. Answer in units of J.





2. Through how large a potential difference did the object fall? Answer in units of V.An object with a charge 4 C and a mass 0,5 kg accelerates from rest to a speed of 21 m/s.?
kinetic energy


W=muu/2=0.5x21x21/2 joule


conservation of energy


QU=muu/2


U=muu/2Q=0.5x21x21/2x4 VoltAn object with a charge 4 C and a mass 0,5 kg accelerates from rest to a speed of 21 m/s.?
KE = 1/2 M V^2


KE = .5 x .5kg x 21m/s^2 = 110J


Volts = J/C


V = 110J / 4C = 27.5 volts

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An object that has potential energy may have this energy because of its what?

Well it depends on what kind of potential energy we are talking about. Potential energy is not just due to your height(more specifically your position in a gravitational field) but also there is electro magnetic potential energy (which is the energy due to your position in an electromagnetic field). So, you could say that potential energy is due to your position in any kind of field whether it be gravitational, electromagnetic, ....etcAn object that has potential energy may have this energy because of its what?
Yes it is it's height/position. If it is say up in the air, it has potential energy because it could fall down, etc.An object that has potential energy may have this energy because of its what?
height


potential energy is energy due to position
Because of it's position and configuration.





There you go, I'm glad I could help. :)

Assuming that the Big Bang Theory is correct, what was the medium that the object/s that exploded sitting in.?

I guess the question that I am asking is what if anything was before the universe. I can't get my head around there was NOTHING but then SOMETHING went bang.Assuming that the Big Bang Theory is correct, what was the medium that the object/s that exploded sitting in.?
It wasn't a bang. It was a fizzle of pure energy. What it expanded out into is sort of beyond our comprehension right now. But, everything that is this Universe, even the spacetime fabric and you and I, are actually composed of that initial 3 second fizzle of energy. Here is a real image that we have recently made of the beginning of the Universe. AND, here also is a real recording of the noise of that first fizzle:





When you have some time, explore the second to last link at the bottom of the page in this article to see accurate models of how the Universe expanded:


http://www.princeton.edu/pr/pwb/03/0217/





This is the radio static of that beginning fizzle:


http://encarta.msn.com/media_461543080_1鈥?/a>Assuming that the Big Bang Theory is correct, what was the medium that the object/s that exploded sitting in.?
Sorry. As far as we can tell, it was nothing. If there was anything, it's outside of our universe, since we expanded into it. And we can't see outside our universe.
speaks wonders for a creator,,,,set off a big bang..
The questions in google asks seem to clump around various subjects,this one is probably the most speculative.


Mathematics may never be applied with any success in this case.


But language with the injection of semantics may give some ground on which to speculate and theorize.


It may never get beyond this.
The big bang was not an explosion but an expansion of time and space. Time started at the big bang so asking what was before the big bang is like asking what is north of the north pole.
In the begining there was no space, time, energy, or matter. All the matter was in the form of a singularity with no dimension and near infinite mass. At the moment of the big bang all of the matter was converted to light. ';Let there be light'; For several seconds nothing existed but space, time and light. As the universe cooled the light converted back to matter.
the big bang never happened

Strangest object you've ever found in a Motel 6 bathroom?

BQ: Do you enjoy camping?Strangest object you've ever found in a Motel 6 bathroom?
My ex wife's phone # and directions to her house.....yeah I know weird huh?Strangest object you've ever found in a Motel 6 bathroom?
A dead gerbil in a condom. Camping? NO. Wildlife is best observed when seen from the safety of my living room TV. Chimp Eden is really interesting.
A thong under the bed O.O (it wasn't mine....)








POLL: I do enjoy camping. *the c-a-m-p-f-i-r-e s-s-o-n-g song!*
why do people post random stuff on questions that have nothing to do with what they are saying!!! are they THAT desperate to get their information across???


I love camping... and I dont recall anything weird in a motel 6
a person...passed out in the tub.





we dated for 2 years after that....lol











and i LOVEE camping! i'm a total outdoor girl!
Noly Condoms :(
A dildo that was still vibrating.
i've really never been to a Motel 6 haha O_o
A passed out crack addict...
anal beads

Mysterious object over the space shuttle?

do you guys think it was an ';alien'; a ufo, or simply ';tiles that protect the shuttle from overheating'; as nasa apperantly said, i dought its just tiles, tiles arent that big or round! what do you guys think? are we alone?Mysterious object over the space shuttle?
We are not alone. Anyone who would think that in this whole, unmeasurable universe we, on Earth, are the only intelligent beings is totally unlogical. I don't know what they are viewing out of the space shuttle, but if it were something that ';fell off';, wouldn't that object just keep going, instead of keeping pace???Mysterious object over the space shuttle?
An object in motion tends to stay in motion. 2 objects separated from a single initial object tend to share the same velocity (speed in the same direction.) In the absence of different accelerations between the objects, they would continue to share similar orbits. Report Abuse

Probaly just some rubbish, or a big chunk of poop from the earlier rockets.
Maybe it's pieces of ';trash'; from the defective air scrubber from the Russians. Someone left their tool box outside again. Hell, they were losing bolts and tools already with that addition they were working on. If it was alien I doubt they would talk about it. Wouldn't it be nice of them to rescue our Astronauts anyway? Show them what a real ship is made like? (oh boy)
It was one of Madonna's implants
Beats me. Will just have to wait and see when they get back. Hope it nothing, saw one shuttle explode, don't want to see another.
It is in nearly the same orbit and appeared right after a small burn. Chances are it is something that shook loose during the burn. NASA probably wants to figure out what it is before they re-enter in case it indicates something that needs to be attached for successful re-entry (like a tile.)
NASA just made the whole thing up to get more money from Congress.
This is a good example that shows how confused people are at the term UFO. And as the first answerer noted, its not ';flying';: actually it's orbiting under no power. There are thousands of pieces of space junk orbiting the earth (see url). Lots of them bolts and nuts. So just because NASA or someone identifies something as a UFO doesn't mean it is something alien or mysterious. It might just be a nut.





As opposed to the alien and mysterious nuts who claim it must be aliens.
not sure





but chek out what nasa is hiding from us all





and why they th ebigest scum on the planet

What object can you hit someone with without it being abuse?

don't say pillow.What object can you hit someone with without it being abuse?
cooked spaghetti, dryer lint, feather, sock, silly string, dead fly, used paper towel roll, Kleenex, finger nail clipping, wax paper, that dried up toothpaste blob in the sink, eye lash, nose hair, blade of grass, that string thing from inside a banana that's not really part of the banana,





The list goes on forever and the party never ends!What object can you hit someone with without it being abuse?
A rubber chicken.
crowbar
the Bible


=]
Lime Jello.
used under ware
a boggin... don't ask....
don't let them tell, it won't be abuse
a feather
breasts
a wet noodle.
uhmmm, a limp noodle?

Inclined plane: finding the acceleration of an object?

A sleigh of mass 20KG is initially at rest on a rough slope inclined at 20 degrees to the horizontal.





The sleigh is released from rest , and moves down the slope.


After 10seconds it is moving with a velocity of 8m/s.





Find the acceleration of the sleigh.


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Please show how you find your answer.Inclined plane: finding the acceleration of an object?
v=vo+at


8=10a


a=0.8Inclined plane: finding the acceleration of an object?
xf=x0+at+0.5at^2;





vf=v0+at





8m/s=0+a(10)





a=8/10 = 0.8 m/s^2

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Material Object Or Chance Of A Life Time?

If you could choose between a material object or a chance of a life time, what would you take?





My friend and I were having a fight.


Would you choose a Corvette


Or


having the chance to go to Africa for 3 months to help change an Orphans life forever. Material Object Or Chance Of A Life Time?
...Corvette...sell the corvette and go to TAHITI...Material Object Or Chance Of A Life Time?
i'd go to africa! for the average human being, the ';value'; of the joy one feels and the sense of personal accomplishment one gains by helping others in a positive and meaningful way is exponentially greater than that of the cost of a corvette. the fond and happy memories created by helping others in need last forever as the corvette will only rust, break down and cost you headaches over a period of time.





What if that orphan grows up to be the president of that African country all because of the path you helped to put him/her on?
I choose a chance of a lifetime. When i am 70, i want to have beautiful memories to share among my grandchildren, rather than wealth that brings only hunger to my heirs...
africa!!!!!1

What object do you think represents the 1920s and why?

for example: a rollercoaster because the 1920s has its up and downsWhat object do you think represents the 1920s and why?
what about if you do a lion roaring because it was called The Roaring 20's.What object do you think represents the 1920s and why?
How about a flapper?

What is the Calue speed if an object is standing still? What is the value for Velocity? Momentum?

speed= distance / time


but distance is zero


thus speed=0/time = 0!





speed of still object is zero!








velocity=displacement / time


displacement is zero for still object


thus velocity=0 /time = 0


value of velocity is also zero!!








momentum = mass X velocity


but velocity is zero


thus


momentum = mass X (0)=0


thus momentum = 0!!!

Why are family packs of crisps smaller than usual packs? Surely it defeats the object, doesn't it?

I have stopped buying them because they are so small ,My husband likes to take a packet of crisps to work to put in his sandwiches


We think we are having a bargain when we are not so now i buy single packetsWhy are family packs of crisps smaller than usual packs? Surely it defeats the object, doesn't it?
That is how the supermarkets rip us off! its called marketing!Why are family packs of crisps smaller than usual packs? Surely it defeats the object, doesn't it?
i know and it is'nt fair
because thats life get over it :)





you only get what you pay for

What is the exact location of the object at time 3? Integrals question.?

An object originally located at x=4. Beginning at time zero, the object moves along the x axis with velocity given by -5-2t+4t^2. Determine the exact location of the object at time 3. What is the exact location of the object at time 3? Integrals question.?
displacement is integral of velocity





v(t) = -5 - 2t + 4t虏


s(t) = 鈭?5 - 2t + 4t虏 dt


= -5t - t虏 + 4t鲁/3 + C





Plug in known value


s(0) = 4


S(0) = -5(0) - (0)虏 + 4(0)鲁/3 + C


4 = -5(0) - (0)虏 + 4(0)鲁/3 + C


C = 4





s(t) = 4 - 5t - t虏 + 4t鲁/3





s(3) = 4 - 5(3) - (3)虏 + 4(3)鲁/3


= 4 - 15 - 9 + 36


= 16What is the exact location of the object at time 3? Integrals question.?
v(t) = -5 -2t + 4t^2 = dx/dt integrate dx from 4 to final position and the time function from 0 to 3. So,


INT{dx}from 4 to Xf = INT{-5 -2t + 4t^2} from 0 to 3


Xf - 4 = -15 -9 + (4/3)*27


Xf = -15 -9 + (4/3)*27 + 4


Xf = 16


So the object started at x = 4 and ended up at x = 16
v(t) = 4t^2 - 2t -5





Integrate to get:





x(t) = (4/3)t^3 -t^2 -5t + C.





C = x(0) = 4.





x(t) = (4/3)t^3 -t^2 -5t + 4.





x(3) = (4/3)(3)^3 -(3)^2 -5(3) + 4.





I'll let you do the rest.



plugging 3 into the equation you come up with x=25, so adding the original 4 to that x=29.
25 (make a graph)

What happens when an UNSTOPPABLE object collides with an UNMOVEABLE object?

The title says it all, What happens when an UNSTOPPABLE object collides with an UNMOVEABLE object?What happens when an UNSTOPPABLE object collides with an UNMOVEABLE object?
Since the unmovable object can't move, the and the unstoppable object can't stop, it would simply rebound off the unmovable object and fly in another direction at the same speed.





This happens when a photon is reflected by an atom for example.What happens when an UNSTOPPABLE object collides with an UNMOVEABLE object?
You picked an inaccurate answer! Report Abuse

It's a hypothetical question. Impossibilities aside, if all rationale were to push itself aside and allow them to exist, the answer I chose seems to accurately state what they would indeed do. Report Abuse

It's impossible by definition. They can't possibly exist in the same universe, and only a contest between them could determine which is accurate. The definition of unstoppable means that nothing else is immovable, and vice versa.
Nothing. It can't happen. There is no such thing as an unstoppable and unmovable object. Everything has it's own strengths and weaknesses.
They crash into each other maybe, gosh, i don't know...
You get a conundrum.
They did this experiment in Wrestlemania.





Hulk Hogan (unstoppable force)





Andre the Giant (immoveable object).





Hulk Hogan won that match (bodyslammed Andre).





Andre later won the title, though, and sold it to Ted Dibiase, so I guess you could say the results are ambiguous.
something's gotta give.
Electrons at a subatomic level separate to form friction.
With the parameters you have set, the unstoppable object simply changes direction.

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Found on the beach a ball like object with the indentation of a star fish on the inside what is it , some sort

Fish or whatFound on the beach a ball like object with the indentation of a star fish on the inside what is it , some sort
It's the shell from a Sea Urchin, same family as the starfish. Nice find!!!Found on the beach a ball like object with the indentation of a star fish on the inside what is it , some sort
Sounds like a sand dollar, they have star fish like shapes on them. If it is dead you can leave it out in the sun to bleach, when you crack it open you can find little stars inside.
Puffer FIsh
No - a ball
Either the skeleton of an urchin or a sand dollar (which is sort of the same).
it sounds like a ww11 limpet mine put it in your micro wave and see what happens
The aliens have landed. Take it to your leader.
Probably a sea urchin.
It's a UFO take it to Nasa now!!!
probably a jelly fish.
Jelly fish if it is like clear jello..........a sand dollar if it is hard and flat??????
Sea Urchin


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