apple Definition and 115 Threads

An apple is an edible fruit produced by an apple tree (Malus domestica). Apple trees are cultivated worldwide and are the most widely grown species in the genus Malus. The tree originated in Central Asia, where its wild ancestor, Malus sieversii, is still found. Apples have been grown for thousands of years in Asia and Europe and were brought to North America by European colonists. Apples have religious and mythological significance in many cultures, including Norse, Greek, and European Christian tradition.
Apples grown from seed tend to be very different from those of their parents, and the resultant fruit frequently lacks desired characteristics. Generally, apple cultivars are propagated by clonal grafting onto rootstocks. Apple trees grown without rootstocks tend to be larger and much slower to fruit after planting. Rootstocks are used to control the speed of growth and the size of the resulting tree, allowing for easier harvesting.
There are more than 7,500 cultivars of apples. Different cultivars are bred for various tastes and uses, including cooking, eating raw, and cider production. Trees and fruit are prone to fungal, bacterial, and pest problems, which can be controlled by a number of organic and non-organic means. In 2010, the fruit's genome was sequenced as part of research on disease control and selective breeding in apple production.
Worldwide production of apples in 2018 was 86 million tonnes, with China accounting for nearly half of the total.

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  1. W

    Calculating Torque on an Apple: Fx, Fy, Fz

    What is the magnitude of the torque about the origin of an apple at coordinates (-3.0, 0, 7.0) m due to force F whose only component is Fx = 2.0 N? What is the y-component of this torque? What is the magnitude of the torque if the force is Fx = - 2.0 N? What is the y-component of this...
  2. N

    How Long Before the Apple Core Hits the Ground?

    Homework Statement A child sitting in a tree throws an apple core from where he is perched (4 m high) with a velocity of 5 m/s [35 degrees above horizontal] and it hits the ground next to his friend. How long before the core hits the ground? Homework Equations dy = vy(initial)t + 1/2at...
  3. S

    Singer Fiona Apple arrested in Texas

    for possession of hashish. https://www.youtube.com/watch?v=FFOzayDpWoI http://in.reuters.com/article/2012/09/21/entertainment-us-fionaapple-idINBRE88J19E20120921
  4. K

    The color of an apple (light absorption and emission)

    Emission of light from a solid object From my textbook (explaining why an apple is red): We imagine that the red apple in the picture is illuminated by daylight, IE light which contains all the wavelengths of the visible spectrum. The apple is red because the main part of the light it...
  5. G

    Did Newton Actually Discover Gravity with an Apple?

    I decided to track down whether or not the story of Newton's apple did in fact happen. Here's what I found: http://www.newscientist.com/blogs/culturelab/2010/01/Newtons-apple-the-real-story.html So it looks like it's true.
  6. F

    Why Does an Apple Fall to Earth, But Earth Doesn't Fall to the Apple?

    Why does the Earth attract the apple and the apple at the same time does not attract the Earth (the Earth does not move to the apple)?
  7. L

    Find an Alcohol Bottle that Looks Like Apple Juice

    I need an alcohol bottle for a scene that I'm doing and don't know anything about alcohol because I don't drink. I need a bottle that obviously looks like an alcohol bottle, and I need whatever alcohol it is to look like apple juice. I'm going to replace the alcohol with apple juice. Obviously I...
  8. S

    Velocity of an apple before strikes the surface of a white dwarf.

    Homework Statement An apple is dropped from a height of 12.8*10^6 m above the surface of the white dwarf. With what speed does the apple strike the surface of the white dwarf? M of white dwarf= 1.99*10^30 gravity of white dwarf= 3.29*10^6 Homework Equations Vf^2=Vi^2+2a(deltaX)...
  9. K

    When you drive a .36 kg apple, Earth exerts a force on It that

    When you drive a .36 kg apple, Earth exerts a force on It that accelerates it at 9.8 m/s squared toward the Earth's surface. According to Newtons third law the Apple must exert an equal but opposite force on earth. If the mass of the Earth is 5.89x10^24 kg,what is the magnitude of the Earth's...
  10. edpell

    Should Apple Set a $2 Minimum Wage for Vendor Employees?

    How about Apple starting a $2 per hour minimum wage for its vendor employees? It would be great PR.
  11. E

    Hexegonal shaped mold in apple juice

    So my friend found a formation of mold in his week old apple juice. It's relatively solid as the formation stays intact when the bottle is shaken. There are oval shaped indentations on each corner. Does anyone know specifically what kind of mold this is? Thanks!
  12. G

    Unprecedented level of spying on consumers using Android and Apple smart phones

    Quite scary. http://www.pcworld.com/article/245229/carrier_iq_rootkit_reportedly_logs_everything_on_millions_of_phones.html
  13. D

    Medical Are the leaves on an apple tree and the sap edible? What about other plants?

    I know the seeds are mildly poisonous, but what about the leaves? What about the leaves of other trees like, orange trees, plum trees, maple trees, ground banana tree leaves, etc? If the bark of a tree is edible, does that imply that it's leaves, seeds, and sap are edible as well? Vice versa...
  14. M

    What do you think of my apple sapling?

    Last year, I planted some apple seeds. About 2/3 of them sprouted, and a fair amount survived. However, I learned the hard way that I should not plant trees in the same pot at first, since I was using a cut up water bottle sideways to hold them. So after killing half while transplanting and...
  15. A

    Swedish moose drunkard caught by apple tree

    In its excited, and ever more inebriated hunt after fermented apples, this Swedish moose finally came to rest within the branches of a particularly inviting tree. Helped out, it fell into a stupor for some time, but then got up and staggered back home into the woods...
  16. P

    Projectile motion apple throw problem

    Homework Statement A child sitting in a tree throws his apple core from where he is perched (4.0m high) with a velocity of 5.0 m/s [35 degrees above horiztontal], and it hits the ground right next to his friend. A) How long is it before the apple core hits the ground? B) How far from...
  17. Ryan_m_b

    News Is Apple Really Richer Than the US Government?

    Apparently Apple now has more reserve cash than the US government http://www.bbc.co.uk/news/technology-14340470 This is getting a bit ridiculous, I'm not American so I can't comment well on opinion or politics in the US but here in the UK people are quite worried that this irresponsible...
  18. O

    Average friction force on a falling apple

    Homework Statement "A 0.15 kg apple falls from a branch 20 m above the ground. If it hits the ground with a speed of 17 m/s, what was the average friction force (due to air resistance) exerted on the apple?" Homework Equations At first, I thought I would use conservation of energy, PE = KE +...
  19. edward

    Apple Juice : As American As Anthing Else Made In China

    http://www.walletpop.com/2009/03/12/apple-juice-as-american-as-anything-else-made-in-china/ I just happened to notice the words: Concentrate China in fine print on the bottle that I keep my humming bird nectar in. It is not on the paper label it is stamped in black letters close to the top of...
  20. Z

    Is it really possible to solve for how fast an apple will fall on earth with GR

    I have recently been studying GR to find out if you really can find out how fast an apple will fall on the surface of the Earth in GR. Its simple with Newtonian mechanics, just use F = GMM / R^2 A = GM / R^2 I started to with the geodesic equation. Which Christoffel symbols should I...
  21. S

    Projectile motion apple throw question

    Homework Statement you have fallen into a hole in the ground. your friend throws an apple to you to keep you happy. you catch the apple 12.0 m from where your friend threw it. (basically range is 12 m). before throwing the apple to you, she threw it at the same speed directly up in the air...
  22. D

    How Long Does an Apple Stay in the Air When Thrown Upwards?

    Homework Statement Basically a girl throws an apple vertically upward from a height of 1.3m with an initial velocity of 2.7m/s. I also know that gravity is =-9.8m/s. I found that the apple reaches a maximum height of 1.67156 m. How long does the apple stay in the air in total? All I know...
  23. Char. Limit

    Apple Plans to Kill Jailbroken iPhones

    Sorry if this is the wrong place for this thread, but I find I get the best discussions in this thread. Take a look at this: http://techland.com/2010/08/23/apple-plans-to-remotely-kill-your-iphone-if-its-jailbroken In case you can't see, Apple plans to file a patent to remotely kill...
  24. S

    Is NATURAL apple juice a clear liquid?

    what imean by natural is...u know how motts comes in regular and natural? well i bought the natural kind..but i bought store brand. if i wave my hand behind the bottle i can barely see it...(the shadow of it) with gatorade i can see it much clearer..but idont like gatorades... one site...
  25. R

    Steam Tables For Apple Computers

    I am a consulting engineer that frequently needs to determine the saturation temperature for various steam pressures. I use a mac computer. I have found many steam table calculator applications for PCs, but have been unable to find one that will run on the mac. Can anyone point me to a...
  26. R

    Steam Tables For Apple Computers

    I am a consulting engineer that frequently needs to determine the saturation temperature for various steam pressures. I use a mac computer. I have found many steam table calculator applications for PCs, but have been unable to find one that will run on the mac. Can anyone point me to a...
  27. Pengwuino

    Apple introduces latest iNonsense

    http://www.apple.com/ipad/ What the hell? Who would buy this thing? It's pretty much big enough to be considered a terrible laptop. Recession my $#%@%#. I feel like phasing iAnything users out of my life. I hate iApple for their nonsense as well. Hey look at us, we just made something that...
  28. M

    Does an Apple's Gravity Affect Earth's Movement? | Exploring Physics Problems

    When an apple falls to the ground does it not exert some gravity of it's own on the Earth and thus shortening the distance it falls? Why is it always assumed the Earth does not itself move in physics problems?
  29. turbo

    One bad apple perception and fact.

    I have a snowmobile trail on the western boundary of my property. It is a heavily traveled spur of the ITS, and I allow the local snowmobile club to use my property for that purpose. They trim trees, bush-hog the trail, etc, but there is no expense to them for the use of my property. I like...
  30. U

    Mass of Person & Apple: 60.2 to 60.7 kg

    Homework Statement A person stands on a scale and it read 60 kg. The accuracy of the scale is 0.5 kg. Then he picked a 0.2 kg apple. The mass of a person and the apple will be between _____ and _____ Homework Equations The Attempt at a Solution I DON'T WANT THE ANSWER, I WANT THE...
  31. N

    Getting Started with my Apple IICX

    I ended up getting a hold of the apple IICX, even with my computer background I'm not sure where to start, I have figured out that I need a Da-15 to vga converter, but I don't know where to get that? And where the pram is because I think that is the reason why its not turning on, but the fan is...
  32. V

    Aeronautics & Astrophysics: Exploring the Universe in 2020

    In 2010 I will be doing my third year, Aeronautics and Astrophysics seems to be calling to me, the only other specialization of interest is quantum physics and maybe electronics, I know I shouldn't really abandon a more general physics education, but I really want to start specializing...
  33. A

    What is the Impact of an Apple Falling on My Head?

    If a apple falls on my head, what is the physical value that makes my head hurt?
  34. D

    Astronaut releasing apple - Find acceleration

    Homework Statement In a space shuttle orbiting 6.40 x 103 km above the surface of Earth, an astronaut releases a 325 g apple. If the radius of Earth is 6.40 x 103 km, what is the acceleration of the apple? A. 2.45 m/s2 B. 4.90 m/s2 C. 9.80 m/s2 D. 19.6 m/s2...
  35. T

    Exploring the Impact of Space-Time on Falling Apples

    I've been wondering since a long time how does the space time curve affect the apple. If the apple isn't attracted by any force but because of the space time, then help me visualise the correct picture of space time which makes the apple fall on the earth.
  36. S

    Why Do Some Apples Have Red Flesh?

    So I bought a bag of apples the other day and in every one the insides look like they've been eaten by someone with bloody gums. It almost looks like the apples have been died and the die has snuck past the skin! What kind of joke is this?!
  37. D

    How temperature affects the power output from an apple

    Homework Statement i'm doing an experiment about how the power output from fruit cell changes when it is heated up. i've put my results into a excel spreadsheet, but i don't know how to explain the relationship between the temperature and the power increase. all the relevant data and the...
  38. C

    Graphing vectors with a calculator or apple computer

    why is it so difficult to graph a 3 dimensional vector on any bloody calculator? I can't even seem to find the right format to graph a x-y-z vector on my new imac grapher software. does anybody know how to graph a vector on a cartesian coordinate system using a texas instrument calculator...
  39. K

    Can I be a Professor and Work with Apple Computers?

    Hello, I am currently in Australia. I want to become a professor in Mathematics and Theoretical Physics and do research in those fields. I also what to use my ability in IT and computers. More specifically, i would like to work with Apple computers. Can i do both? That is, can i be a...
  40. M

    Connecting VCR to Apple Computer/ vice versa

    Hi, I need to make a 2 minute video, and it has to be on VHS for submittal. I have a digital camera and I could use that to make the video, I wanted to put it onto my MacBook to edit. I just don't know how I can get it off my MacBook and onto a VHS Tape (the format it is required to be in). I...
  41. R

    Biology; clarification of apple juice, help please

    I'm doing my biology coursework on the clarification of cloudy apple juice using pectinase and cellulase. I've found loads of useful information on pectinase and exactly how it clarifies the juice but absolutely nothing on cellulase so I'm a tad stuck.. I know that the microfibrils in the...
  42. E

    Conservation of momentum and apple falling

    The momentum of an apple falling to the ground is not conserved because the external force of gravity acts on it. But the momentum is conserved in a larger system. Explain? I am confused because gravity is the external force acting upward, so what's the force that is acting up on the apple...
  43. F

    Weight of the whole earth with reference to an apple

    I don't know the answer to this question but it may only require common sense: Let's say an apple on the surface of the Earth weighs 0.25 Kg. Imagine the apple as the little Earth and the whole Earth on top of it. What is the weight of the Earth with reference to that apple? I suspect...
  44. 4

    Help, apple falling/conceptual problem

    Homework Statement How does the Earth's rotation affect an apple that is dropped from a tree? Homework Equations None The Attempt at a Solution Er... I'm not 100% sure on this one =/. Does it pull on it as it falls down or something? Help would be MUCH, much appreciated, thank you!
  45. P

    Jim's Friend & the Apple: Solving for Time

    Homework Statement Jim's friend climbs up a 25m tower and let's an apple fall straight down. Jim is standing 10 m away from tower and will shoot the apple just as teh apple is at a height of 1.5m, the same heightfrom which the gun was fired. The bullet has an initial speed of 40 m/s. How much...
  46. S

    Apple Computers - Seeking Opinions Before Buying

    Ok I know there was a thread about apple computers somewhere along the line in GD but I will be darned if I can find it so for now I guess I will start a new one. Anyway, my HP computer is in the shop yet again and it seems like it spends more time being fixed than working so I am contemplating...
  47. O

    Projectile motion of an arrow to an apple

    im having a very difficult time with this question: William Tell is said to have shot an apple off his son's head with an arrow. If the arrow was shot with an initial speed of 55m/s and the boy was 25m away, at what launch angle did William aim the arrow? The arrow and apple are initially at...
  48. S

    Freefalling Apple: Man Pushes Upward - N2L?

    when the cable of the life snaps,everything inside experience freefall as the man is not touching the bottom of the lift right?so suppose a man in the lift holds an apple and the cable snaps so the man and apple will experience freefall right? so here's the qn when they are falling and the man...
  49. P

    Kinematics - Archer shooting arrow at apple

    Hello all.:smile: First I want to say that I'm really new to physics,started like a week ago. and that this is NOT homework(i'm studying by myself) An archer shoots an arrow with a velocity of 45.0 m/s at an angle of 50.0° with the horizontal. An assistant standing on the level ground...
  50. N

    Is there a connection between listening to music and lacking social skills?

    An 80GB iPod and iTunes 7 (it can come up with any album's cover art! :bugeye: ) are probably the news. May be some of you will also be interested in the 30GB version that's now $50 cheaper. http://apple.slashdot.org/apple/06/09/12/1856217.shtml
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