Sunday
May 26, 2013

# Posts by melody

Total # Posts: 86

Math
Hi, this is a question I posted a couple of days ago and answers below.I am still really confused and unfortunately can't copy a picture into this. I thought it would be y-x but have no idea how to calculate that, but as the pistons move in towards each other, wouldn't...

Maths
Two pistons A & B move backwards and forwards in a cyclinder. Distance x cm of the right hand end of piston A from point 0 at time t seconds is x=3sin(2t)+3 and the distance y cm of the left hand end of piston B by formula y=2sin(3t-pi/4)+8.5 The pistons are set in motion at t...

Maths
Many thanks, I understand that now. I have another question I am stuck on also. How do I get an equation for the height of the car on the ferris wheel over a 10 minute period if we start the analysis one minute into the ride. Can I still use the original formula h = -35cos(2pi...

Maths
I have a trig question regarding a ferris wheel, radius 35m, axles 37m, clockwise direction, rotates twice every 10 mins. I have calculated the following function: h = -35cos(2pi*X/5)+37 I have calculated at what height I would be after 3 minutes by substituting X=3 in the abo...

Math 116
The formula R= -0.075t + 3.85 can be used to perdict the world record in the 1500 meter run, t years after 1930. Determine an inequality that identifies the years in which the world record will be less than 3.4 minutes. Soleve for t. t >__? round to the nearest whiole number.

english
- There are many different reasons why poverty occurs and as such there are many different avenues to pursue in the eradication of poverty

social studies
why was the Great Wall of china build?

science
What is the Rf value for DDT pesticide?

history
i was wondering if any one could give me any ideas on these essay tasks: (i)How did world War 1 affect Australia's history? (ii) Explain what the industrial disputes of the 1920's showed about the problems facing Asutralian society during this decade. I really need hel...

science
If the weight of a vehicle is doubled, would the deceleration of the vehicle be doubled? For example if a car decelerated at 6m/s, would a car double the size, decelerate at 12m/s or is their some other factor involved? Thanks for your help

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