Monday

September 22, 2014

September 22, 2014

Total # Posts: 401

**physics**

A 10.0 kg mass is 1.00m to the left of the origin, and a 20.0 kg mass is 3.00 m to the right of the origin, both on x-axis. Find the gravitational potential energy and the gravitational field on x-axis at a) x =-2.0m b.) the origin, c.) x = 4.00 (set Zero P.E @ infinity in ...
*October 2, 2011*

**earth**

A satellite moves in a circular orbit about our earth exactly four times a day. Find its orbit, radius , speed and weight.
*October 2, 2011*

**Algebra**

What is 54 over 72 in simplest form
*September 30, 2011*

**Algebra**

What is 7u+3v-4 simplified using like terms
*September 29, 2011*

**Algebra**

A cat can jump the height of up to 5 times the length of it's tail.How high can a cat jump if it's tail is 13 inches long? Please write a multiplication or division equation
*September 9, 2011*

**Math**

What is 5+7x+2x-3+6 simplified, x+y+4x-3x+2y+3y simplified
*September 6, 2011*

**Math**

What is 2x+7+5x-4-x simplified
*September 6, 2011*

**algebra**

What is 2x+7+5x-x
*September 6, 2011*

**7th grade math**

Needing to write an algebraic expression, 14 less than the quantity k times 6 Then another one, I don't understand the books answer, 35 multiplied by the quantity r less 45
*August 31, 2011*

**7th grade math**

Is "quantity of" same as a multiplication problem?
*August 31, 2011*

**science**

two identical 200 gram balls of diameter 3.0 cm are 5.0 cm apart. each carries a charge of 6.5 micro coulombs. one of the balls is realesed. find its acceleration if gravitational force is negligible small?
*August 19, 2011*

**6th grade math**

Ok thank you I did get same thing
*August 18, 2011*

**6th grade math**

2 2/3 \ 1 5/6
*August 18, 2011*

**writing**

We are working on a worksheet asking if that part of sentence is a complete subject or complete predicate
*August 17, 2011*

**writing**

Is "a newborn kitten" considered a complete subject?
*August 17, 2011*

**6th grade math**

Ok.. Understand. Thank you
*August 16, 2011*

**6th grade math**

Length of of a side of a cube, if the volume is 1000 cubic meters?
*August 16, 2011*

**6th grade math**

I don't understand is I don't know any of the side as factors
*August 16, 2011*

**6th grade math**

Length of of a side of a cube, if the volume is 1000 cubic meters?
*August 16, 2011*

**math**

find the solution of the system of equations 10x-5y=-20 and 7x-5y=-20
*August 10, 2011*

**math homework**

log 7 (80)
*July 10, 2011*

**physics**

A 2.9-m nylon fishing line used to hold up a 5.2 kg fish has a diameter of 1.4 mm How much is the line elongated?
*June 12, 2011*

**physics**

Here is a demonstration Pascal used to show the importance of a fluid's pressure on the fluid's depth : An oak barrel with a lid of area 0.25 m^2 is filled with water. Along, thin tube of cross-sectional area 5.5×10−5 m^2 is inserted into a hole at the ...
*June 12, 2011*

**english**

i need to unscramble ahootnerr.
*June 11, 2011*

**algebra**

what is t=p+3r/6. (the slash is a divided sign)
*May 24, 2011*

**geometry**

you are to design, draw and label the dimensions of 3 boxes that will hold enough detergent to do 18 loads of laundry. Each scoop of detergent does one load. The size of the scoop is 3in.x2in.x2in. all work must be shown on the work page. At the bottom of the page select one ...
*May 18, 2011*

**physics**

A car has an initial speed of 23.0 ms-1. In addition, there is also wind blowing in direction similar to the car with a force of 30 N. If the brakes are applied and the car skidded for 10 meters before coming to a halt, determine the kinetic friction of one of the car’s ...
*May 15, 2011*

**physics**

A car has an initial speed of 23.0 ms-1. In addition, there is also wind blowing in direction similar to the car with a force of 30 N. If the brakes are applied and the car skidded for 10 meters before coming to a halt, determine the kinetic friction of one of the car’s ...
*May 15, 2011*

**Women Studies **

I have to explain it in 4 sentences, i think that will get me there. thanks alot.
*April 26, 2011*

**college math 120**

50 ft per .63 sec = 79.3651 ft per sec 79.3651 ft per sec = 54.112568 mph every 10 ft the speed drops 9 mph, so 54.112568 mph - (5 x 9) = 9.112568 mph I'm not sure I understood the question completely, but I think this is the right answer.
*April 12, 2011*

**AC 323CT**

. Harold Stevenson purchased substantially all of the business assets of the Troy Creamery on January 17. As part of the purchase price he paid $200,000 for the patent on an ice cream making process. Harold also pays $20,000 for the business's goodwill and another $20,000 ...
*March 31, 2011*

**6grade math**

How many millimicrons are in 2.5 meters
*March 29, 2011*

**physics**

A 1500 kg car moving at 10 m/s is stopped by the action of its brakes. The work done by the car's brakes is ____ Joules.
*March 28, 2011*

**physics**

A hunk of cast concrete with a weight of 10 N will float if it displaces 10 N of water. True or False
*March 28, 2011*

**physics**

The density of a solid ball with a mass of 231 g and a volume of 110 cm^3 is ____ g/cm^3.
*March 27, 2011*

**physics**

A hunk of cast concrete with a weight of 10 N will float if it displaces 10 N of water.
*March 27, 2011*

**Trig**

(2/y+2)+(3/y)=(-y/y+2)
*March 22, 2011*

**physical science**

If the asteroid is moving at a constant speed in its orbit, does this also mean it is moving at a constant velocity? Explain your answer.
*March 21, 2011*

**physical science**

Assume this asteroid has the shape of a sphere. A rock sitting on the surface of the asteroid has a weight of 100 newtons. What would the weight of this rock be if it were moved to a distance above the surface equal to the radius of the asteroid? It may be helpful to draw a ...
*March 21, 2011*

**Chemistry**

someeone answerrr thiss s
*March 16, 2011*

**Physics**

A single conservative force F(x) acts on a 1.6 kg particle that moves along an x axis. The potential energy U(x) associated with F(x) is given by U(x) = -2.9xe-x/3 where x is in meters. At x = 3.4 m the particle has a kinetic energy of 7.2 J. (a) What is the mechanical energy ...
*March 7, 2011*

**Chemistry**

A 20.0 ml sample of an unknown HCl solution requires titration with 15.0ml of 0.1MNaOH solution to reach equivalent point. What is the concentration of the HCl solution? HCl + NaOH ¨ H2O + NaCl A. 0.000075 B. 75 C. none of these D. 0.075
*March 5, 2011*

**physics**

Anyone? ive got a test tomoz and i need this answering
*March 1, 2011*

**physics**

The table shows the power ratings of four electrical appliances. Fan heater 2 kW Oven 3 kW Kettle 2 kW Microwave oven 0.75 kW The kettle is used for a total of 30 minutes a day. It has an efficiency of 0.9 What is the cost of the energy wasted by the kettle each day? 1 0.6 p 2...
*March 1, 2011*

**Accounting**

Starfax, Inc., manufactures a small part that is widely used in various electronic products such as home computers. Operating results for the fi rst three years of activity were as follows (absorption costing basis): In the latter part of Year 2, a competitor went out of ...
*February 8, 2011*

**6 grade math**

Dividing 22/7 / 5
*January 10, 2011*

**Physics**

A model airplane of mass 0.9 kg is attached to a horizontal string and flies in a horizontal circle of radius 5.2 m, making 1.2 revolutions every 8 s. (The weight of the plane is balanced by the upward “lift” force of the air on the wings of the plane.) The ...
*December 21, 2010*

**Physics**

A model airplane of mass 0.9 kg is attached to a horizontal string and flies in a horizontal circle of radius 5.2 m, making 1.2 revolutions every 8 s. (The weight of the plane is balanced by the upward “lift” force of the air on the wings of the plane.) The ...
*December 21, 2010*

**Math**

/Users/szeringue/Desktop/SCAN0001.JPG Can you help me solve this problem, Please AB=27 BC=x CD=4/3x AD=x AC=? How do I get what AC equals?
*December 2, 2010*

**Math**

/Users/szeringue/Desktop/SCAN0001.JPG Can you help me solve this problem, Please AB=27 BC=x CD=4/3x AD=x AC=? How do I get what AC equals?
*December 2, 2010*

**chemistry**

pKa=4.5
*November 22, 2010*

**geometry**

In an isosceles triangle ABis congruent to BC. Measure of angle A is x +3y and the measure of angle C is 3x +2y. The measure of angle C is 63 degrees. Find x and y.
*November 15, 2010*

**Physics**

1. Free-fall: A ball is thrown vertically upward. What are its velocity and acceleration when it reaches its maximum altitude? What is its acceleration just before it hits the ground?
*November 10, 2010*

**Calculus I**

Consider the function f(x)=((2)/(x^2))-((3)/(x^5)). Let F(x) be the antiderivative of f(x) with F(1) = 0. Find F(3).
*November 6, 2010*

**4th grade**

if jen has X pogs then we have the following: Marty: JEN x+6 : X X+6-10 :x+10 X-4 : X+10 then to find the difference we substract X+10 -(X-4) = 14 Jen has 14 pogs more than Marty
*October 24, 2010*

**american gov**

Of the roles that the press plays in the American political system, which is it least equipped to carry out properly? a. common-carrier b. signaler c. watchdog d. public-representative e. news interpreter i think its E but im not sure
*October 8, 2010*

**math**

An adult cheetah weighs about 130 pounds. An adult mountain lion weighs about 170 pounds. A sutdent estimates that a mountain lion weighs about twice as mush c as a cheetah. Is the estimate reasonable? Explain why or why not?
*September 29, 2010*

**2nd grade**

i need a sentence with the word slid
*September 21, 2010*

**physics**

Compute the order of magnitude of the mass of (a) a bathtub filled with water, and (b) a bathtub filled with pennies. In your solution list the quantities you estimate and the value you estimate for each.
*September 20, 2010*

**Physics**

A solar still is used to make fresh water from salt water by evaporation. Assume that during a summer day that 1000 BTU/ft sq of solar energy falls on the surface of the salt water. Determine how many inches of water are evaporated in 30 days. Assume that 1040 BTUs is needed ...
*September 19, 2010*

**Physics**

A nuclear power plant generates (output) 500 mw. It is 34% efficient. The waste heat going in the Connecticut River with an average flow of 3*10 exp 4 (kg/sec). How much does the water temperature rise?
*September 19, 2010*

**Physics**

Can you do this for 3m/s^2?
*September 16, 2010*

**geometry**

Find the measure of each exterior angle of a reguler 11-gon. round your answer to two decimal places if neccesary?
*September 8, 2010*

**12th grade - Math**

1x1=1x10000+9+9+9=10027
*September 1, 2010*

**math**

what is the largest whole number x for which 2x is less than 13.7?
*August 26, 2010*

**12th grade-Advanced functions**

the y-intercept of the graph of y=k(x-1)(x-2)(x-3) is 24 Determine the value of k.
*July 30, 2010*

**12th grade-Advanced functions**

Given that f(x)=g(x/3), describe how the graph of f and g are related?
*July 30, 2010*

**12th grade-Advanced functions**

Determine the vertical asymptotes of the graph of graph of y=secx/logx for x≤2pi
*July 30, 2010*

**12th grade-Advanced functions**

provide any 2 solutions for the equation y=cot(1/2(theta-pi/2))-5 solutions may be in degrees
*July 19, 2010*

**Pre-Cal**

Yes it does. I will multiply cos60 which is 1/2 by 500 and add 4 feet. And I would use cos because it is adj/hyp. Is that a fairly good explanation?
*July 17, 2010*

**Pre-Cal**

A person flying a kite holds the string 4 feet above ground level. The string of the kite is taut and makes an angle of 60 degrees with the horizontal. Approximate the height of the kite above level ground if 500 feet of string is payed out.
*July 17, 2010*

**Chemistry**

SO one unit as well? I don't really get it.
*July 11, 2010*

**Chemistry**

I am having big troubles on this question. What is the increase in acidity associated with a decrease of one unit on the pH scale?
*July 11, 2010*

**trigonometry**

Find the length of the arc that subtends an angle of measure 70 degrees on a circle of diameter 15 centimeters.
*July 10, 2010*

**Stress Management Techniques**

THIS WAS A GREAT HELP. KEEP POSTING AND SHARING FOR OTHER SUBJECTS ON THE PERSONAL TRAINER PROGRAM FOR PF. its a life saver!
*July 3, 2010*

**maths**

you want to make a flower bed in your garden. What shape would it be to make the biggest possible peramiter for an area of 214cmsq
*June 16, 2010*

**English**

Write an essay explaining how epics reveal a civilization's customs, manners, and values. Support your ideas with at least three references from The Odyssey.
*June 8, 2010*

**3rd grade**

What can I write about the heart?
*May 29, 2010*

**Math**

Round 1,643,253 to the nearest hundred thousand. I say it's 1,600,000 but the workbook says 1,700,000. Please explain.
*May 21, 2010*

**math(answer quick!)**

closed or 2-d im a kid so idk hope this helps
*May 20, 2010*

**Chemistry**

I have to figure out which Atmospheric Pressure and Vapour Pressure pairs would cause boiling.
*May 17, 2010*

**Chemistry**

In which pair(s) would boiling occur? (Each pair corresponds to one row of the table) a. 760 {mm,Hg} 700 {mm, Hg} b. 480 {torr} 480 {mm, Hg} c. 1.20 {atm} 912 {mm, Hg} d. 1020{mm,Hg} 760 {mm, Hg} e. 740 {torr} 1.00 {atm}
*May 17, 2010*

**Chemistry **

Use molar volume to solve the following problems at STP. Find the volume mL occupied by 0.400 mole He. Find the number of grams of neon contained in 10.2 L Ne gas
*May 17, 2010*

**math**

Suppose a jar contains 5 red marbles and 33 blue marbles. If you reach in the jar and pull out 2 marbles at random without replacement, find the probability that both are red.
*April 22, 2010*

**physics**

A length of organ pipe is closed at one end. If the speed of sound is 344 m/s, what length of pipe is needed to obtain a fundamental frequency of 74 Hz? Answer in units of m.
*April 1, 2010*

**Physics**

If the speed of sound in air is 340 m/s, what is approximately the length of a shortest air column closed at one end that will respond to a tuning fork of frequency 140 Hz? Answer in units of cm.
*April 1, 2010*

**Physics**

If the speed of sound in air is 340 m/s, what is approximately the length of a shortest air column closed at one end that will respond to a tuning fork of frequency 140 Hz? Answer in units of cm.
*April 1, 2010*

**chemistry**

Calculate the molar heat of neutralization in kJ/mol of the reaction between HA and BOH given the following information: The temperature change equals 7C, 50 mL of 1 M concentration of Acid 50 mL of 1 M concentration of Base Heat capacity of the calorimeter is 6.5 J/C. ...
*March 28, 2010*

**Math**

What this person means is : cosQ = 5 and tanQ = 2sqrt6
*March 23, 2010*

**College Chemistry**

I don't have an answer.
*March 21, 2010*

**Tennessee State University**

How much heat is absorbed by the calorimeter if the temperature change is 12 C and the calorimeter constant (Heat Capacity) is 3.3 J/K?
*March 21, 2010*

**Tennessee State University**

How much heat is absorbed by the calorimeter if the temperature change is 12 C and the calorimeter constant (Heat Capacity) is 3.3 J/K?
*March 21, 2010*

**Tennessee State University**

How much heat is absorbed by the calorimeter if the temperature change is 12 C and the calorimeter constant (Heat Capacity) is 3.3 J/K?
*March 21, 2010*

**physics**

Two 72.0 kg hockey players skating at 5.25 m/s collide and stick together. If the angle between their initial directions was 125 degrees, what is their speed after the collision?
*March 19, 2010*

**precalculus**

an airplane flying at 550 miles per hour has a bearing of N 58(DEGREES)E. After flying 1.5 hours, how far north and how far east has the plane traveled from its point of departure?
*March 11, 2010*

**Statistics**

Ok please help me. Here is my stats question Suppose there is a 20% chance of striking oil at a certain location. An oil company drills at 5 different spots. What is the probablity of them striking oil on at least one of the spots? Any help is greatly appreciated
*February 3, 2010*

**science**

what is the biggest animal alive today
*February 2, 2010*

**Math - Trigonometry**

Math - Find the amplitude, period, phase shift - y=cosPi/2 (x+1/3)
*February 1, 2010*

**Math - Trigonometry**

Find the amplitude, period, and phase shift - y=cosð/2 (x+1/3)
*February 1, 2010*

**Science**

The basic units of heredity that determines traits are?
*January 21, 2010*

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