Sunday

February 1, 2015

February 1, 2015

Total # Posts: 341

**MATH**

Two Trains are leaving Kansas City at noon. One is traveling northeast at 38MPH. The other is heading west at 46KPH. At what time in Los Angeles will the trains be 214 miles apart?
*January 28, 2015*

**Math**

Suppose an object is dropped from a height h0 above the ground. Then its height after t seconds is given by h = −16t 2 + h0, where h is measured in feet. Use this information to solve the problem. A ball is dropped from the top of a building 59 ft tall. (Round your ...
*January 24, 2015*

**math**

A box with a square base and no top is to be made from a square piece of cardboard by cutting 4-in. squares from each corner and folding up the sides, as shown in the figure. The box is to hold 324 in3. How big a piece of cardboard is needed?
*January 24, 2015*

**Chemistry**

Iron 3 hydroxide reacts with acetic acid to form iron 3 acetate and water. If 45.4g of water are formed,what mass of iron 3 acetate will be produced? •Fe(OH)3+3HC2H3O2--->Fe(C2H3O2)+3H2O 45.4H2O( ? Fe(C2H3O)) ---------------------------------------- ( ? H2O)
*January 18, 2015*

**programming**

Step 1: Design a flowchart or write pseudocode for a program that allows a user to enter 12 numbers, then displays all of the numbers (in the order they were entered) as well as the largest number and the smallest number. Step 2: Implement and test your design using VisualLogic.
*November 25, 2014*

**Astronomy**

Given the random orientation of planetary orbits relative to our line of sight, do you expect most or only a minority of all planetary systems to show transits?
*November 24, 2014*

**Astronomy**

Does the probability that a single-planet system shows transits increase, decrease or stay the same if the planet has a rather small or a rather large semi-major axis?
*November 24, 2014*

**Physics**

A beaker of mass 5kg containing oil of mass 17.4 kg and density 8.5 x102kg/m3 rests on the scale A block of iron of mass 6.7kg is suspended from the spring scale and completely submerged in the oil as shown in Figure below. Determine the equilibrium readings of lower scale in ...
*November 3, 2014*

**physics**

Assuming you are on Earth, where acceleration due to gravity is 9.81 meters/second2, and you have a pendulum with a cord that is 0.65 meters long, what is the period?
*October 31, 2014*

**Physics**

For the remaining parts of this question use the following settings in "Uniform circular motion" mode. The initial angular velocity is 4.1 rad/s and the radius is 4.1 cm. (c) What is the speed of the object at a time t = 3.0 s after the simulation is started?
*October 25, 2014*

**PSAT**

From 1990 to 1995, the value of one share of stock of XYZ corporation increased by 25%. if the value was D dollars in 1995, what was the value in 1990?
*September 22, 2014*

**Science**

How might creativity help a scientist? a)creativity allows a scientist's findings to be trusted. b)Creativity alllows a scientist to develop new ideas or evaluate old ideas in a new way. c)Creativity assures that the scientist has a sense of right and wrong. d)creativity ...
*August 22, 2014*

**Science**

What type of scientific thinking did alfred wegener employ to develop his theory? A.Inductive reasoning B.Deductive reasoning C.Skeptical reasoning D.Subjective reasoning Is the answer A?
*August 22, 2014*

**Science**

How might creativity help a scientist? A.Creativity allows a scientist's findings to be trusted. B.Creativity allows a scientist to develop new ideas or evaluate old ideas in a new way. C.Creativity assures that the scientist has a sense id right and wrong. D.Creativity ...
*August 22, 2014*

**Algebra**

85% ?
*August 18, 2014*

**Algebra**

Share your answer: there are 80 students in park 12 playing tennis what percentage is not playing tennis?
*August 18, 2014*

**math**

a circular pizza box logo has a sector with a central angle of 80 degrees and a diameter of 16 inches. Find the area of this sector
*April 23, 2014*

**science**

1. A 2. B 3. D 4. C 5. A 6. C 7. D
*March 22, 2014*

**physics**

thank you
*January 26, 2014*

**physics**

Sorry If the comment above was repeated...Something happened... so the period 1.689*10^3s
*January 26, 2014*

**physics**

period is 1/f, right? so if I am looking for period I need to 1/592Hz....which is1.689*10^-3 s, which is very fast
*January 26, 2014*

**physics**

then after that 1/592Hz?
*January 26, 2014*

**physics**

What is the expected period of beats formed when two tuning forks sound simultaneously and have the frequencies f1= 250Hz and 242Hz?
*January 26, 2014*

**Eng 2**

Which sentence has a compound predicate with a direct object? a) Anne backes cakes and cookies. b) Anne loves to bake cakes. c) Anne took baking classes d)Anne baked a cake and ate it
*January 21, 2014*

**algebra 1**

A charity fair raised $6,000 by selling 500 lottery tickets. There were two types of lottery tickets: A tickets cost $10 each, and B tickets cost $60 each. How many tickets of each type were sold?
*January 21, 2014*

**chemistry**

What mass of NiSO4 is present in 2.00 x 102ml of 6.00% NiSO4(aq)? (The density of the solution is 1.13g/ml.)
*November 11, 2013*

**Grammar**

ok, that is what I thought to!! Thank you so much!!
*October 23, 2013*

**Grammar**

Select the correctly punctuated sentence. 1. Thank you for asking me to meet with your patient, Wonder Woman, who came to the appointment accompanied by her husband. 2.Thank you for asking me to meet with your patient Wonder Woman who came to the appointment accompanied by her...
*October 23, 2013*

**physics**

what is the difference between impact distance and horizontal distance?
*October 1, 2013*

**College Math**

A plane flies 460 miles with the wind and 310 miles against the wind in the same length of time. If the speed of the wind is 30 mph, what is the speed of the plane in calm air?
*September 10, 2013*

**algebra**

-11.2=1.6+w/8= solve for w
*August 12, 2013*

**geometry**

Find the area of the quadrilateral in Exam Figure 5. Round your answer to two decimal places.
*July 18, 2013*

**physics**

If I have 1.5 moles of an ideal gas at a pressure of 3 atmospheres and a volume of 7 liters, what is the temperature?
*June 18, 2013*

**physics**

A thin, massless, horizontal pipe rotates about a vertical axis with angular speed ω as shown in the figure. A small bug, located at a distance r from the axis, starts crawling inside the pipe at constant speed v (relative to the pipe). Because of the bug, the motor must ...
*June 17, 2013*

**yutfv**

by what method did you find 0.25?
*June 17, 2013*

**Physics**

for b
*May 11, 2013*

**Calculus **

1) Find correct to six decimal places root of the equation cos(x)= x for xE[0, pi/2] using Newton's Method. 2) A triangle has two constant lengths of 10 cm and 15 cm. The angle between two constant sides increases at a rate of 9 deg/min. Find the rate of increase of the ...
*May 4, 2013*

**Quantum Physics**

uppercase K
*April 16, 2013*

**Solid Mensuration**

A spherical wooden ball 1 ft in diameter is used as a float for a boat. If the ball sinks to a depth of 7 inches, find the area of the wetted surface.
*April 3, 2013*

**Physics 12**

Help will be appreciated. In a large department store, a shopper is standing on the "up" escalator, which is travelling at an angle of 40 degree above the horizontal and at a speed of 0.75 m/s. He passes his daughter, who is standing on the identical, adjacent "...
*March 29, 2013*

**Dynamics**

Ans. (a) v = 2.13 m/s, (b) x = 0.304 m
*March 24, 2013*

**pre ap chem**

determine the partial pressure of hydrogen if it's collected over water at 23 degrees celsius and the system has a total pressure of 724 mmHg then determine the mole fraction of water vapor in the system
*March 6, 2013*

**chemistry**

What is the maximum mass of H2O that can be produced by combining 90.8 g of each reactant
*February 18, 2013*

**chemistry**

In a household radiator, 1000 g of steam at 100 C condenses. How much heat is released?
*February 12, 2013*

**physics**

thank you
*December 20, 2012*

**physics**

what will happen to the bone structure if earth becomes more dense than its actual density?
*December 20, 2012*

**physics**

how to know the raiuds in GMm/r2?
*December 20, 2012*

**physics**

how to use the values of total energy and potential energy in a graph?
*December 19, 2012*

**Phsyics**

I did not get the answer...
*December 18, 2012*

**Phsyics**

Determine the magnitude and direction of the gravitational force exerted a) on the Moon by Earth and b) on Earth by Moon.
*December 18, 2012*

**English**

what are the advantages and disadvantages if King claudius and polopnius overhear Hamlet's "to be or not to be" speech?
*December 17, 2012*

**math**

2.5 qt/min = ____ gal/h
*December 13, 2012*

**science**

what is the probable relationship between the rebound centers and the thickness of ice in canada
*December 13, 2012*

**physics**

After 6.00 kg of water at 80.4 oC is mixed in a perfect thermos with 3.00 kg of ice at 0.0 oC, the mixture is allowed to reach equilibrium. When heat is added to or removed from a solid or liquid of mass m and specific heat capacity c, the change in entropy can be shown to be...
*December 1, 2012*

**Chemistry**

Free Surface Vacancies
*November 28, 2012*

**Math**

if radius increased by 0.5 cm each year by how much did the circumference increase each year
*November 25, 2012*

**Math**

(0,0) (20,7.2) (40,12.8) (60,16.8) (80,19.2) (100,20.0) (120,19.2) (140,16.8) (160,12.8) how do you find the equation curve of best fit with these numbers
*November 19, 2012*

**Lies**

What is a synonym for ugly
*November 13, 2012*

**Math**

1776
*November 13, 2012*

**Math**

Tens and hundred digits are equAland ones and thousands have a sum equal to one of the middle digits the entire digit sum is 21 what year was it made in
*November 13, 2012*

**English**

It means you can get A popcorn bag at the bar
*November 13, 2012*

**Precalculus **

Write y^2 + 8x = 0 in polar form.
*November 9, 2012*

**Physics**

tttttt
*October 17, 2012*

**Biology **

Explain the medical importance of brain-mapping experiments?
*September 22, 2012*

**INFORMATION LITERACY**

Exam: 050006RR - INFORMATION LITERACY:STUDY UNIT
*September 20, 2012*

**computers**

19. The major reason for the predominance of the PCI bus in the latest models of PCs is that End of exam A. it's exclusively manufactured in the USA. B. the size and form factor make it easy to package. C. the technology was released as open source. D. it uses ASSEMBLER ...
*September 18, 2012*

**computers**

9. Two PC repair technicians are discussing the electrical system of a PC. Technician A says that the power supply provides electricity to all the devices in a PC. Technician B says that the power supply supplies 3.3, 5, and 12 volts of AC power. Which technician is correct? A...
*September 18, 2012*

**Biology**

Why is knee-jerk reflex exaggerated after the book is clenched?
*September 18, 2012*

**Biology**

An individual is born with a genetic abnormality that causes a reduction in the myelin found around a neuron. How might this disorder affect reaction rate? Explain your answer.
*September 18, 2012*

**Biology**

What difficulties would be experienced by an individual who did not demonstrate a pupillary light response?
*September 15, 2012*

**Precalculas**

The sum of the first 30 terms of one arithmetic sequence is 300 more than the sum of the first 30 terms of another arithmetic sequence. what could the sequences be?
*September 9, 2012*

**Precalculus**

Determine a recursive formula for the sequence: 2, 5, 10, 17,......
*September 8, 2012*

**Calculus**

for f(x)=-x^2 +1, which value is the largest magnitude? a) average rate of change from x=-1 to x=1 b) instanteneuous rate of change at x=3 c) instanteneous rate of change at x=0 average rate of change from x=-4 to x=0
*July 4, 2012*

**MAth**

Determine the value of x for which the function f(x) ={¨€(5x,if x<0;1,if x<0; -5x,if x>0)©Èis discontinuous.
*July 4, 2012*

**Math- Probability **

Two regular dice are rolled. what is the probability that the sum is even, given that both numbers are odd?
*June 6, 2012*

**Mortgage Class**

So where is the answer?
*May 3, 2012*

**government**

which of the following legislative bodies comes closest in its function to the japanese house of councillors
*May 1, 2012*

**Physics**

1) Which control on a music player or television set allows you to increase or decrease amplitude of the sound waves that come out of it? 2)Ripple tanks are used to observe two-dimensional waves. What should be the name of the amplitude control for two-dimensional waves? 3)...
*April 24, 2012*

**computer science**

File bankruptcy right away!
*March 29, 2012*

**Trig**

(cosx/sinx X sinx)(1/cosx - cosx) = sin^2x (cosx)(1-cos^2x) /cosx = sin^2x 1-cos^2x = sin^2x sin^2x = sin^2x PROVED
*March 24, 2012*

**Physics-11**

A 12 kg object is at the top of a 41 degree inclined ramp. It is released and it reaches the bottom of the 85 m ramp in 2.3 seconds. what is the force of friction between the object and the ramp? What is the coefficient of friction? Can someone help me do this?
*March 23, 2012*

**maths**

What is a 9.8 meter x 6.1 square?
*March 8, 2012*

**math**

PLEASE HELP :(
*March 6, 2012*

**math**

Ryan wants to use 22 feet of fence to surround a section of grass for his dog to play in. He wants the area of this section of grass to be 30 square feet. Which dimensions could Ryan use for this section of grass? 2ft by 9 ft 3ft by 8 ft 4 ft by 7 fy 5 ft by 6 ft
*March 6, 2012*

**math**

In the number 268,743, how many times greater than the 3 is the 6?
*March 5, 2012*

**Physics**

1. A car starts from rest and accelerates uniformly at 3.0 m/s2. A second car starts from rest 6.0 s later at the same point and accelerates uniformly at 5.0 m/s2. How long does it take the second car to overtake the first car? 2. A ball is thrown downward from the top of a ...
*February 16, 2012*

**math**

write 3 different ones number you could add to 15 where you need to regroup to find the sum
*February 8, 2012*

**Math**

what is the remainder of 4x^80-2x^60+2x^50+7x^37-2x^11+9 divided by x-1
*February 4, 2012*

**Accounting**

If you are closing out a company how would you handle retained earnings? Example: If I opened a company with my own cash for $1,000.00. I know the entry would be: $1,000.00 DB to cash $1,000.00 CR to Retained Earnings If I used the $1,000.00 cash to pay bills and then had no ...
*January 24, 2012*

**chem**

A) Athletes that have to compete at high altitudes often go to the location and train for a month or so at these reduced pressures. This would be true of mountain climbers as well. What happens to the body that allows it to compensate ( over this period of time) for the ...
*November 27, 2011*

**physics**

lol i have no idea either, but lets guess together
*November 18, 2011*

**math**

Gemma says that a regular polygon cannot have an exterior angle of 25 degrees. Is she correct? Explain your answewr.
*November 8, 2011*

**pop culture**

do you think consolation is true in todays culture
*September 29, 2011*

**business**

As company ombudsman, your task is to investigate complaints of wrongdoing on the part of corporate directors and officers, decide whether there is a violation of the law, and deal with the wrongdoers accordingly. Jane, a shareholder of Goodly Corporation, alleges that its ...
*September 11, 2011*

**pre calc**

those weird signs next to the -4 and 4 mean the answer has to be between -4 pi and 4 pi
*August 3, 2011*

**pre calc**

A graph of y = cos(1/2 x) - sin( x) for -4ð x 4ð is shown in the figure. Assume z = 4. (the figure is just the graph) its asking me to find the x intercepts but i dont know how. it also asks me to find: The x-coordinates of the eight turning points on the graph are ...
*August 3, 2011*

**chemistry**

What are the products ? CH3-CH2-CH2-CH3 + Br2→
*July 14, 2011*