Saturday
April 19, 2014

Posts by yaya


Total # Posts: 30

physics
A certain centrifuge produces a centripetal acceleration of magnitude exactly 1090g at a point 12.3 cm from the axis of rotation. Find the number of revolutions per second.

biomechanics
Suggest how a snail and a large dog develop linear momentum.

biomechanics
By actual measurement it has been shown that a sprinter pushes 1700N on each foot at the starting blocks . The right at 34o and the left at 52o Calculate the vertical component for each foot.

physics
A Softball is Thrown at an angle of 45 degrees with the horizontal. It leaves the hand 2m above the ground. Its Initial Velocity is 20 m/s . Neglecting all external resistance, how far would it travel ? The point at which it hits the ground is at the same level as the ground a...

biomechanics
why the initial velocity u divided 20/√2. i cant understand. can u explain it ..

biomechanics
A Softball is Thrown at an angle of 45 degrees with the horizontal. It leaves the hand 2m above the ground. Its Initial Velocity is 20 m/s . Neglecting all external resistance, how far would it travel ? The point at which it hits the ground is at the same level as the ground a...

Java programming
can you show me where is the wrong for this program..because it contains error..i dont know where is it wrong..help..tq.:) import java.util.Scanner; public class BMR { public static void main(String[] args, int x) { Scanner keyboard = new Scanner(System.in); int pound, inch,ag...

information technology help
no.i hope can anyone give an idea about my question... the weakness of the application microsoft power point

information technology help
no.i hope can anyone give an idea about my question... the weakness of the application microsoft power point

information technology help
give the weakness of microsoft power point with solution. 5 point

calculus ..>steve
Given a function f(x)2/3x^3+5/2x^2-3x. a) Find i. The inflection point. ii. The y-intercept and x-intercept. b) Sketch the graph of f(x). i have already try it..but i dont understand.. which graph that is true.. the first or second ? and how to calculate the x,y intercept,and...

calculus
Q4. Given a function f(x)2/3x^3+5/2x^2-3x. a) Find i. The inflection point. ii. The y-intercept and x-intercept. b) Sketch the graph of f(x).

calculus
. Sony Ent. is marketing a new smartphone. It determines that in order to sell x smartphones, the price per product must be It also determine that the total cost of producing x smartphones is given by a. Find the total revenue, R(x). b. Find the total profit, P(x). c. How many...

chemistry
I am really stuck and would need some help..is there anyone out there in cyberworld that can help me ...pleeeeeeaaaaaassssseeeee

chemistry
DrBob222! I am so happy that you took a look at this question, I was hoping when posting that YOU would help me out...honestly. Well I know its a long question and to be honest I kinda need help with all of it...I have got the first part semi figured out but would still need t...

chemistry
Subject – equilibria Pure ethanoic acid (25.0cm3, CH3COOH), pure ethanol (35.0 cm3, C2H5OH) and pure water (20.0cm3, H2O) were mixed in a sealed flask at room temperature. The flask was placed in a heated water bath and maintained at 323K until equilibrium was established...

Chemistry
Is this: (CH3COOK) = 0.0255mols/0.0355L = ? approximately 0.7 M wrong? moles/volume=concentration right? which would make this = 0.7183 moldm3 and then to get the pH...-log(0.7183)?

algebra
1. The formula V=lwh is used to find the volume of rectangular prisms. Which equation solves for w? a. w=V-l-h b. w=Vlh c. w=lh/V D. w=V/lh 2. Mr. Marsupial invested $8,000, part at 6% interest and the reamainder at 8% interest. At the end of the first year he received &600 i ...

algebra
1. Rodney can pick 2 rows of string beans in 1 hour and 24 minutes. At this rate, how long will it take him to pick 7 rows of beans? 2. The formula for finding the perimeter of a rectangle is P=21+2w. Which equation solves for w in terms of l and P?

Physics
A 14000 kg railroad car travels alone on a level frictionless track with a constant speed of 24.0 m/s. A 6500 kg additional load is dropped onto the car. What then will be the car's speed?

Math
@Reiny: It is 6/v -1= 6/(v+3) I made a mistake there. @bobpursley: From the 6/v-1 I made it one fraction 6/v -1/1 --> (6 -(1*v))/v

Math
I need help with this problem: 6/v-1=6/(v-3) I tried working it out like this: >>>6/v-1=6/(v-3) >>>(6-v)/v= 6/(v-3) I cross multiplied to get: >>>3v+18-v^2= 6v >>> -3v+18-v^2=0 ^Here's where I became stuck. I would appreciate it if you w...

Math
Thank you so much for the help ^^

Math
Can anyone help me with this question? 2/(-1+x)+1/(x-2)=2/(1-x) Thanks =]

Manageral Economics (Economyst Only Please)
a. Discuss the statistical significance of the parameter estimates a, b, c, and d, using the p-values. Are the signs of b, c and d consistent with the theory of demand? The p-value associated with b is consistent with the theory of demand - if the prices rise, the quantity sol...

geometry
lol me too..DAMN these submissions are hard as hell !!!..i think they should eventually eliminate math from school anyways cuz everyone hates it

10th grade Algebra
Factoring....

10th grade Algebra
6ab^2-(q-r)^2

10th grade Algebra
8h^2-4h

chemistry
WHAT IS THE MASS OF 0.200 mol of C9H8O4?

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