Friday

April 18, 2014

April 18, 2014

Total # Posts: 27

**Physics**

A cheetah starting form rest can reach a maximum speed of 28m.s in 2s and it can maintain this maxium speed for 15s after this it must rest. suppose an antelope and a cheetah initially at rest are seperated by a displcament of magnitude 100m.The antelope and cheetah see each o...

**Maths**

5x+3y=7 2y+3x=2 solve simualtaneously

**English**

Hi everyone! I need some help in answering the following questions for a class task: N.B**I ALREADY HAVE SOME OF THE ANSWERS BUT IT WOULD BE GREAT TO ADD MORE FACTFUL INFROMATION** Compare the island in the opening and closing chapters of the novel(10) Outline the events leadi...

**Information Technology**

Yes please.I need help immediatly

**Information Technology**

Hi! I am actually asked to create a cipher using NETBEANS to encrypt and decrypt messages.I have NEVER touched NETBEANS before and I am looking for someone to give me some information on how to run this cipher and the JAVA codes that should be generated in it Thanks Sivashen

**English**

Its not an assignment.This is a activity and we never learn anything on it thats why i am asking someone to do one for me so then i will have an idea of what to do and then write my own

**English**

Please write one of the following: congratulatory message *sale of an item *missing person *missing pet MUST BE BETWEEN 100-150WORDS

**English**

okay thanks for your help.Will do immediatly as possible

**English**

I would like for you to write a diary entry and from that I will add thesaurauses and change a couple of structure.Please HELP

**English**

Write a diary entry imaginig that you are Malvolio locked in a dark room in punishment for your "madness".It should be around 100-150Words

**programming**

On jGrasp you will do' import java.util.*; public class Weight { public static void main(String[]args) { Scannerkb=new Scanner(System.in); System.out.println("PLEASE ENTER WEIGHT OF AN OBJECT:"); double w=kb.nextDouble(); System.out.println("THE WEIGHT OF TH...

**Waves**

a long fishing rod is kept upright .A boat engine causes the rod to vibrate.Mary speculates that the end of the rod moves to and fro 20 times in 1 minute.The amplitude of the vibrtion is 0.15m.Calculate the speed of the vibration at the end of the fishing rod

**Afrikaans**

Goeie More Skryf Die volgende sinne in die LYDENDE VORM. 1.Babsy het gister die bal baie hard geskop. 2.Lalla moet daagliks die winkel blitsvinnig gaan

**Physics**

During a car race two cars,a ferarri and a mercedes crashed.The ferarri was travelling at a speed of 340km/h an the mercedes was travelling at a speed of 230km/h.What is the resultant crash

**ENGLISH**

It means the following.Please Help As Soon As Possible Thanks

**ENGLISH**

MY DADS TURNING 40.I NEED A GREAT SPEECH ABOUT 2 MINUTES. THE CRITERIA IS THE FFG SIGNFICANCE OF DAD TURNING 40-5MARKS COMIC-10 MARKS LEGNTH-5MARKS OVERALL-30MARKS

**PHYSICS**

A BOAT IS LYING AT ANCHOR.IT RISES UP EVERY 15SECONDS AS WAVES PASS UNDER IT.IF THE DISTANCE BETWEEN PEAKS IS 3M,HOW LONG AFTER THE FIRST SWELL HAS PASSED UNDER THE BOAT WILL IT PASS UNDER ANOTHER BOAT LYING 150M DIRECTLY AWAY FROM IT

**Physics**

A LADY IS GETTING MARRIED IN 2DAYS TIME.HER HUSBAND BUYS HER A DIAMOND RING.ON THE DAY OF HER WEDDING HER HUSBAND PLACES THE RING ON HER FINGER.THE RING REFRACTS AT AN ANGLE OF 23.24 DEGREES.CALCULATE THE ANGLE OF INCIDENCE IF THE REFRACTIVE INDEX OF A RING IS 2.42

**Physics**

The side of a fish tank is made up of a thick parallel sided piece of glass.The refractive index for glass is 1.52.A beam of light strikes the surface of the glass at an angle of 46 degrees with rspect to the normal.What direction will the beam move in the water.Show all CALCU...

**PHYSICS**

IT DOESNT USE MIRRORS. IT USE 2*45 DEGREE GLASS PRISMS.THERFORE IT UNDERGOES TOTAL INTERNAL REFLECTION AND REFLECTS TWICE MAKING THE PERSON ABLE TO SEE

**Physics**

FREQUENCY=...... 9WAVES:28SECONDS X WAVES:1SECOND 28X=9 X=9/28 X=0.32HZ PERIOD=1/F =1/0.32 =3.13SECONDS WAVELENGTH =TOTAL DISTANCE/NUMBER OF WAVES =9*5/9 =45/9 =5 SPEED V=F*WAVELENGTH V=0.32HZ*5 V=1.6 M.S

**Physics**

wavelegnth=5m period- 10wave 30sec 1wave Xsec X=3sec Frequency=1/T =1/3 =0.33Hz V=f.wavelegnth =0.33Hzx5m =1.65m.s

**Physics**

N1SinQ1=N2SinQ2 1*sin(30.4)=N2Sin(20.7) Sin(30.4)/Sin(20.7)=N2 1.43=N2

**Physics**

N1SinQ1=N2SinQ2 1*sin(30.4)=N2Sin(20.7) Sin(30.4)/Sin(20.7)=N2 1.43=N2

**5th math **

LCM=3 let x=total students let y=total girls let z=total boyz z=x-y z=36-16 z=10

**5th math **

LCM=3 let x=total students let y=total girls let z=total boyz z=x-y z=36-16 z=10

**physics**

N1SinQ1=N2SinQ2 1*Sin30=N2Sin(22) Sin(30)/sin(22)=N2 1.33=N2

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