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Electric Field help?
An oil drop of radius 1.64 µm and density 0.851 g/cm^3 is suspended in a chamber when a downward-pointing electric field of 1.92*10^5 N/C is applied. Find the charge on the drop, in terms of e, and please show work
1 AnswerPhysics6 years agoCoulombic Forces help?
Three identical conducting spheres initially have the following charges: sphere A, 8Q; sphere B, -2Q, and sphere C, 0. Spheres A and B are fixed in place, with a center-to-center separation that is much larger than the spheres. Two experiments are conducted. In experiment 1, sphere C is touched to sphere A and then (separately) to sphere B, and then it is removed. In experiment 2, starting with the same initial states, the procedure is reversed: Sphere C is touched to sphere B and then (separately) to sphere A, and then it is removed. What is the ratio of the electrostatic force between A and B at then end of experiment 2 to that at the end of experiment 1?
1 AnswerPhysics6 years agoPhysics Work and Kinetic Energy HW Help?
A block of mass 5 kg is released from rest to slide down a slope inclined at 60 degrees with a coefficient of friction of .25. At the bottom of the slope (2 m below the mass's start measured along the spring)is a spring of spring constant 1500 N/m.
a) What is the maximum compression of the spring?
b) How much energy will be lost to the work friction at this point?
2 AnswersPhysics6 years agoPhysics Conservation of Momentum Help?
A 5.10-g bullet is shot through a 0.91-kg wood block suspended on a string 2.00 m long. The center of mass of the block rises a distance of 0.50 cm. Find the speed of the bullet as it emerges from the block if its initial speed is 401 m/s. Please show work.
1 AnswerPhysics6 years agoHow to serialize a class in java?
I have been trying to serialize and deserialize objects to and from data files in java, the objects being for a class I made myself with several private integers. However, my programs haven't been working, so how could I go about doing so?
2 AnswersProgramming & Design7 years agoHow to add applets to HTML?
I am using the following code in an attempt to create an html page with an applet:
<html>
<head>
<title>Test</title>
</head>
<body>
<applet code="Test.class" height=400 width=400></applet>
</body>
</html>
I tried moving the html file into the same folder as Test.class, but using this code the html file is unable to locate the java program. Is the code itself wrong, or where to I need to move the html file for it to locate the program?
1 AnswerProgramming & Design7 years agoHow to find images from a java program?
I am using java.applet and java.awt to create graphics, and I am trying to have the program find an image in a folder called images using the following code:
getImage(getDocumentBase(), "images/c1.gif")
Where do I need to put the images folder in relation to the .java or .class files for this line of code to find the image, or is the code itself wrong?
1 AnswerProgramming & Design7 years agoGraphing line of best fit on TI-84+?
I put all the x-values in L1, all the y values in L2, and I successfully graphed the scatter plot. Then I find the line of best fit STAT>CALC>4, opening up a menu for LinReg(ax+b). I put L1 next to xlist, and L2 next to ylist, then find the line of best fit, but I can't graph it.
1 AnswerMathematics9 years agox^(-2/3)-3x^(-1/3)-4=0?
3 AnswersMathematics9 years agoHelp with Math Homework?
I have a math problem where I have to find the radius of a circle with some secant and tangent measurements, and here's what I managed to get to:
Line PT is tangent to circle O at point T, and segment PT has a length of 12. Secant PR meets the circle at points J and R, and J is somewhere in between P and R. Also, point N lies on line JR. JP=8, JN=6, JR=4, and NO=4.
How do I solve?
1 AnswerMathematics9 years agoHow to put trig into Python?
I am using python 3.2, and I want to know, how do you get the three trigonometric functions into it, and then how do you use them?
1 AnswerProgramming & Design10 years agoPlease help with math homework?
I have a problem I have to solve, but I'm not quite sure how to go about solving it. Here it is:
After a punter kicks a football, its height s, in feet above the ground, is given by s = −16t ^2 + 20t + 1, where t is in seconds. How long will the football be in the air, to the nearest hundredth of a second?
2 AnswersMathematics1 decade agoHelp Me In A Cryptarithm Problem?
I need to solve the following cryptarithm:
SEVEN-NINE=EIGHT
Each letter represents a different digit. I need two solutions to it, but please submit one if you have one.
1 AnswerMathematics1 decade agoWhat is the perfect dog for me?
I am moving into an apartment, and would like a dog. But I'm allergic to dogs, and I would like a small dog. I hear that there are some dogs, that people who normally have dog allergies wouldn't have an allergic reaction. Could someone tell me a breed of relatively small dogs but still somewhat common that I wouldn't be allergic to?
16 AnswersDogs1 decade agoRuneScape Armor Help?
I want to know if there's an armor set out there that doesn't lower any attack stats, but has good numbers in defensive stats. Void Knight Armor is often used, but is there another option?
8 AnswersVideo & Online Games1 decade agoWhich yu-gi-oh 5D's stardust accelerator deck building help?
I plan on creating a sort of Tribute deck with both swarm cards and non-swarm cards among my deck. It will revolve around starting with some 1900 atk normal cards such as insect warrior and gemini elf and some cards that special summon cards from the deck like giant rat and mecha bunny, then tributing for some level 5-6 2400 attack cards like Zaborg, Granmarg and Dark Driceratops, and if possible get the powerful cards Ultimate Tyranno and Gogiga Gagigigos. But don't forget some s/t jammers like magic jammer, swarm cards like double summon and anti-swarmers like mirror force, lightning vortex and torrential tribute. These are the cards for this style that I have:
Insect Warrior
Gemini Elf
Mecha Bunny
Masked Dragon
Giant Rat
Zaborg the Thunder Monarch
Granmarg the Rock Monarch
Dark Driceratops
Prime Material Dragon
Gogiga Gagigigos
Magic Jammer
Graceful Revival
Birthright
Cards I want to know the deck of (not a structure deck):
Archfiend Soldier
Mad Dog of Darkness
Howling Insect
Ultimate Tyranno
Double Summon
Mirror Force
Lightning Vortex
Torrential Tribute
What I want is comments about the deck type I'm working on and the decks (not structure decks) which have the cards I'm looking for.
2 AnswersCard Games1 decade agoYugioh 5D's Stardust Accelerator help?
I am trying to make the best of Satellite before heading through the pipeline, and I plan on using a Monarch deck until I have the cards for a Dragon deck. But there are two cards I'm missing: Zaborg and Mobius. Could you please say:
What deck is Zaborg in?
What deck is Mobius in?
1 AnswerCard Games1 decade agoHelping finding some Yu-Gi-Oh: World Championship 2009?
Until I beat 10 WC opponents, I want to try make a monarch deck. So, what good monarch deck cards are there in the game and where can I get them? I already have Granmarg the Rock Monarch. I'd also like to have some 1900+ atk LVL 4 normal cards. I already have Insect Warrior. As for Traps, I could use some Trap/Spell destroyers. Magic Jammer, Dust Tornado, Raigeki Break, Destruction Jammer, Counter Counter, and Twister. Could some people tell me which are available and how to get them?
1 AnswerCard Games1 decade agoHelp with yu-gi-oh 5d's stardust accelerator?
I'm fighting Alpha, Beta, Gamma, and Delphi, but my deck is not powerful enough. This is my deck:
Big Koala
Insect Knight x 3
Sabersaurus
Ancient Gear Knight
Armed Dragon Lv5 x 3
Armed Dragon Lv7
Behemoth the King of All Animals
Chaos Necromancer
Cyber Dragon
Dark Valkryia
Fossil Tusker
Gigantic Cephalotus
Granmarg the Rock Monarch
Horus the Black Flame Lv6
Horus the Black Flame Lv8
Mecha Bunny x 3
Mecha Dog Marron x 2
Mobius the Frost Monarch
Prime Material Dragon
Psychic Commander
Quillbolt Hedgehog
The Calculator
Twin-Barrel Dragon
Big Bang Shot
Cup of Ace
Malevolent Nuzzler
Riryoku
Rush Recklessly
Shield Crush
Soul Taker
Twister
Unstable Evolution
Birthright
Compulsory Evacuation Device
Counter Counter
Destruction Jammer
Divine Wraith
Dust Tornado x 2
Graceful Revival
Kunai with Chain
Magic Jammer
Overworked
Radiant Mirror Force
Raigeki Break
Reinforcements
Security Orb
My Extra Deck:
Psychic Lifetrancer
Magical Android
Gaia Knight, the Force of Earth
Master of Oz
These are the decks I unlocked:
Dark Beginning 1
Dark Beginning 2
Dark Revelation Volume 1
Dark Revelation Volume 2
Soul of the Duelist
Rise of Destiny
Flaming Eternity
Cybernetic Revolution
Shadow of Infinity
Power of the Duelist
Strike of Neos
Tactical Evolution
Phantom Darkness
Light of Destruction
Acceleration Pack
Which cards should I go buy and add to my deck? Its okay if it's a rare card, because I have plenty DP from WC. Also, which cards should I send to the trunk?
3 AnswersCard Games1 decade agoHelp with this math problem?
I got this math problem for homework called the chessboard challenge. In it, there's an 8 by 8 grid and I have to try put on 16 pieces without have 3 or more pieces (2 is allowed) in a horizontal, vertical, or any sort of diagonal line. To name the squares where you can put pieces, call them by their name in chess. Columns are called A,B,C,D,E,F,G and H while rows are called 1,2,3,4,5,6,7 and 8. The bottom-left corner would be A1, the top-left corner would be A8, the bottom-right corner would be H1 and the top-right corner would be H8.
6 AnswersMathematics1 decade ago