Saturday
August 23, 2014

Posts by Linda


Total # Posts: 1,235

chemistry
how to balance chemical equations
November 20, 2010

Physics
A 120 kg astronaut (including space suit) acquires a speed of 3.00 m/s by pushing off with his legs from an 1900 kg space capsule. What is the change in speed of the space capsule? As the reference frame, use the position of the space capsule before the push. if the push lasts...
November 17, 2010

Statistics
0.8
November 16, 2010

Physics
A 21.0 kg child descends a slide 3.4 m high and reaches the bottom with a speed of 2.0 m/s. How much thermal energy due to friction was generated in this process?
November 16, 2010

Physics
A cyclist intends to cycle up a 7.5 degree hill whose vertical height is 170 m. Assuming the mass of bicycle plus cyclist is 95 kg, calculate how much work must be done against gravity. If each complete revolution of the pedals moves the bike 5.6 m along its path, calculate ...
November 16, 2010

Physics
A 58 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 15 m, and falls a total of 36 m. Calculate the spring stiffness constant k of the bungee cord, assuming Hooke's law applies. Calculate the maximum acceleration she ...
November 16, 2010

Physics
A projectile is fired at an upward angle of 25.0^\circ from the top of a 310 m cliff with a speed of 220 m/s. What will be its speed when it strikes the ground below? (Use conservation of energy.)
November 15, 2010

biology
it is possible that he would be homozygous but not ccertain because some males have an extra chromosome foe example : the normal male has "XY" and another male may have "XXY" which means its possible for a male to be heterozygous but its not common. Now if ...
November 15, 2010

Stout
A chocolate chip cookie contains about 200 kcal. How many kilowatt-hours of energy per day does it contain. How long could you light a 100-W light bulb with the energy from the cookie?
November 14, 2010

inter Alegbra
r+s=5 3s+2t=-1 4r+t=14 ican u breakdown the answer I get half way though i forgot the last pat wheater i put it back into the original equationn alot of steps i get lost
November 14, 2010

inter Alegbra
A start up computer company can sell 1000 computers if they price them at $500. The number sold will increase by 10 for every $1 decrease in the price. The company has fixed costs of $100,000, and each computer costs $300 to produce. Find the price that will maximize the ...
November 14, 2010

inter Alegbra
thank you henry you rock
November 14, 2010

inter Alegbra
Pick a car and find its top speed. Assuming that your chosen car reaches its top speed at the top of a ramp, leaving the ramp vertically 20 feet about the ground: 1.) When will the car land back on the ground? 2.) When would the car be traveling the fastest? 3.) When would the...
November 14, 2010

inter Alegbra
A startup company can sell 1000 computers if they price them at $500. The number sold will increase by 10 for every $1 decrease in the price. The company has fixed costs of $100,000, and each computer costs 4300 To produce. find the price that will maximize the company's ...
November 14, 2010

microeconomics problems
The GreenAcres mowing company wants to buy the new “Titan3000” lawn mowers. Assume that the lawn mowers are expected to last indefinitely, that operating expenses are negligible, and that the price per acre of mowed lawn is expected to remain constant in the future. ...
November 14, 2010

inter Alegbra
is $14 by completing the square
November 14, 2010

inter Alegbra
A band can sell 80 CDs at concert if they sell the Cds for $12 each. For every $1 increase in the price, they will sell 5 fewer Cds. Determine the price for a CD that will maximize the band's revenue.
November 14, 2010

intermidiate algebra
pick a car find its top speed. Asusuming that your chosen car reaches its top speed at the top of a ramp, leaving the ramp vertically 20 feet about the ground? 2. When would the car be traveling the fastest? 3.)When would the car be traveling the slowest? 4.) based on the ...
November 14, 2010

economics
A monopolist faces an upward-sloping marginal cost curve. Its profit-maximizing quantity will be a. at the minimum point of the marginal cost curve b. less than the (total) revenue-maximizing quantity c. equal to the (total) revenue-maximizing quantity d. in the unit elastic ...
November 13, 2010

Physics
You are the design engineer in charge of the crashworthiness of new automobile models. Cars are tested by smashing them into fixed, massive barriers at 51 km/h (32 mph). A new model of mass 1900 kg takes 0.18 s from the time of impact until it is brought to rest. Calculate the...
November 10, 2010

Physics
A 23 g bullet traveling 220 m/s penetrates a 4.2 kg block of wood and emerges cleanly at 140 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
November 10, 2010

Physics
A 3600 kg open railroad car coasts along with a constant speed of 11.0 m/s on a level track. Snow begins to fall vertically and fills the car at a rate of 3.70 kg/min. Ignoring friction with the tracks, what is the speed of the car after 80.0 min?
November 10, 2010

Physics
Calculate the force exerted on a rocket, given that the propelling gases are expelled at a rate of 1800 kg/s with a speed of 3.8×104 m/s (at the moment of takeoff).
November 10, 2010

Physics
A 0.145 kg baseball pitched at 37.5 m/s is hit on a horizontal line drive straight back toward the pitcher at 48.0 m/s. If the contact time between bat and ball is 3.50×10^−3 s, calculate the average force between the ball and bat during contact.
November 10, 2010

Physics
Eight books, each 4.1 cm thick with mass 1.8 kg, lie flat on a table. How much work is required to stack them one on top of another?
November 10, 2010

chemistry
the value of Kp after the decomposition of sulfur trioxide (S03). 2SO3 (g)--2SO2 (g) +O2 (g) is 1.79 x10^-5 at 350 degree celcius. if SO3 initially at 0.200 atm pressure comes to equilibrium in an otherwise empty tank at 350 degree celcius, determine the partial pressure of O2...
November 7, 2010

partial pressure
1) the value of Kb after the decomposition of sulfur trioxide (S03). 2SO3 (g)--2SO2 (g) +O2 (g) is 1.79 x10^-5 at 350 degree celcius. if SO3 initially at 0.200 atm pressure comes to equilibrium in an otherwise empty tank at 350 degree celcius, determine the partial pressure of...
November 7, 2010

chemistry
How many moles of sodium acetate CH3COONA must be dissolved in 1.00L of 0.200M acetic acid to make a buffer pH 4.56? ka of acetic acid is 1.76x10^-
November 6, 2010

chemistry
for a) i got the pH of HF to be 2.07 and for b) i'm a little stuck. the mole of HF is 0.2M x 0.05L =0.1mol the mole of NaOH is 0.2M x 0.02 L= 0.02mols. this is where i'm stuck
November 6, 2010

chemistry
sorry it's Kp, it's a typo
November 6, 2010

inter alegbra
$102.00
November 4, 2010

lang. arts
This is due tomorrow!
November 3, 2010

lang. arts
Is "good" the adverb and "very" the word it modifies? (adverb)?
November 3, 2010

lang. arts
We read a very good Japanese folk tale called "Green Willow." Not sure what the adverb is in this sentence? Is "good" the adverb and "read" the word it modifies?
November 3, 2010

lang. arts
We will soon be going to computer class. Is "soon" the adverb and "going" the word it modifies? Thank you.
November 3, 2010

lang. arts
Your parents will probably give you permission. Is "probably" the adverb and "will" "give" the words it modifies? Not sure if both words or just "give"?
November 3, 2010

lang. arts
"Very" sadly, we returned home. Very is the adverb, is "sadly" the adverb it modifies?
November 3, 2010

lang. arts
Thank you for your help Ms. Sue!
November 3, 2010

lang. arts
Happy is an adjective?
November 3, 2010

lang. arts
We are "so" happy for you. Happy is the adverb, is "happy" the verb it modifies?
November 3, 2010

lang. arts
The play Purlie Victorious was "too" funny for words. "too" is the adverb, is "funny" the verb it modifies?
November 3, 2010

language arts
She wrote it "very" carefully. "Very" is the adverb; is "carefully" the adverb it modifies?
November 3, 2010

language arts
Keep is the verb? Away is the adverb?
November 3, 2010

language arts
Keep away from the acids in the science room. what is the adverb in the sentence and what are the word or words that each adverb modifies?
November 3, 2010

lang. arts
We should not have taken the canary outside. "Not" is the adverb. Is "should have taken" the words the adverb modifies and are the words verbs?
November 3, 2010

language arts
should be kept
November 3, 2010

language arts
Promises should "always" be kept. "always" is the adverb. What are the word or words the adverb modifies?
November 3, 2010

Language arts
I have almost finished my report on the writer Joy Harjo. "almost" is the adverb. Is "have" "finished" the words the adverb modifies?
November 3, 2010

lanuage arts
Clean your room now! Now is the adverb, is clean the verb it modifies?
November 3, 2010

language arts
The wind blew all the clouds away. Away is the adverb, what is/are the words the adverb modifies?
November 3, 2010

Entrep
Andy Rexford had started his custom embroidery shop in his garage with just one two-head machine and an old computer. From this humble beginning, Custom Stitches had grown into a full-time family business with sales of more than $750,000 a year and supplied the local college ...
October 31, 2010

6th grade
What fraction of a circle is 33 1/3 of a circle?
October 27, 2010

physics
A soccer ball of diameter 32 cm rolls without slipping at a linear speed of 2.4 m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 16 m?
October 27, 2010

adult education
identify the three domains of development. Describe why it is important to consider each domain in the study of adult education?
October 24, 2010

algebra
all number less than 3 units from 0 I need to write inequality represents each situation
October 19, 2010

sociology
I am writing an essay on the socialogical perspectives on the issue of unemployment. The symbolic interactism and function analysis. I went on the web and research the issue of unemployment and the meaning of the perspectives, yet I am stumped on how to form a thesis and how ...
October 19, 2010

methods of researh
I Need the answer for why men use more declarative to women
October 15, 2010

methods of researh
why do men use more declarative to women
October 15, 2010

6th grade math
What is the difference between -3celsius and 8 celsius
October 13, 2010

math
Compute the number of vinyl tiles, measuring 8 in each side, needed to tile a kitchen measuring 24ft by 18ft. Area of kitchen:25X18=432 Area each tilein (feet):.667X.667=.44 432/.44=972 tiles Is my work correct?
October 8, 2010

English
What are two themes that may be present in a folktale?
October 5, 2010

geometry
Nevermind, I figured them out.
October 5, 2010

geometry
Pyramid has a base 6 yards X 6yards. Its height is 4 yards. Volume= Surface Area= I got 60 square yards for the surface area but it was wrong.
October 5, 2010

geometry
the scale factor between figure A and figure B is 0.25. If one side length of figure B is 56 yards, what is the corresponding side length of figure A?
October 3, 2010

English
What are some funding expectations that institutions have.
October 2, 2010

math
n+9 divied by 3=14 i do not understande this problem can you help
September 30, 2010

algebra
5+4d=37
September 30, 2010

algebra
i don"t understand this problem n+9 /3=14
September 30, 2010

Psychology
What do you think is the best way for personality psychology to move ahead in the future?
September 30, 2010

Psychology
I need information on borderline personality effects associated with immigration. No matter how much I research I can't seem to find any helpful information. Can you please provide some information to help get me started?
September 25, 2010

math
no my given answers are (a) $158,400.00 (b) $104,480.00 (c) $83,584.00 (d) $63,584.00 now which one is the given ics answer?
September 23, 2010

Psychology Please Help
Middle Ear Infection They also found that among children who were delayed at 24 months, low maternal education predicted delay even more strongly at 48 months (OR = 30.5) What does OR stand for? OME delayed cognitive development in children with OMR when compared to those ...
September 23, 2010

Math
8x-3y=-6 >> 8x=-6/3y >> x=-6/24y then: 8(-6/24y)-3y=-6 (-6y/3)-3y=-6 (-6y-9y)/3=-6 -3y/3=-6 y=6 then: 8x-3*6=-6 8x-18=-6 8x=-6+18 8x=12 x=12/8=3/2 so: X=3/2, Y=6
September 23, 2010

Psychology
Can you think of any examples of how interactions with a partner or spouse may have been influenced by what you learned by observing other family members or even television? I know one example might be seeing your parents argue when you were a child. But I can't think of ...
September 18, 2010

english
See what above? This website is very confuesing! I don't know what any of you peoplee\ here are talking about! I am looking for information on The Scarlet Letter and all I see here is wreid 1.look around you.2. blah blah blah! What on earth are you talking about?! I'm ...
September 17, 2010

english
See what above? This website is very confuesing! I don't know what any of you peoplee here are talking about! I am looking for information on The Scarlet Letter and all I see here is wried 1.look around you.2. blah blah blah! What on earth are you talking about?! I'm ...
September 17, 2010

Geometry
19.39
September 15, 2010

physics
A person is standing at the edge of the water and looking out at the ocean. The height of the person's eyes above the water is h = 1.6m. and the radius of the earth is R = 6.38 X 10^6 m. (a) How far is it to the horizon?
September 14, 2010

economics
2. a
September 14, 2010

alegebra
1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on Earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where C is a constant, and...
September 13, 2010

Math 117
2. Biologists want to set up a station to test alligators in the lake for West Nile Virus. Suppose that the costs for such a station are $2,500 for setup costs and $3.00 to administer each test. a. Write an expression that gives the total cost to test x animals. b. You can ...
September 12, 2010

Psychology
How could Freud and Rogers have created theories that differ so fundamentally? If Rogers and Freud and changed places (turn of the century Vienna versus mid-20th-century US), would they still have developed the same theories?
September 6, 2010

intermediate algebra
y=(1/5)^x
September 3, 2010

Psychology
Why did various early followers of Freud reject psychoanalysis in favor of an alternative theory?
August 31, 2010

Psychology
How do you think individual personality characteristics influence social and occupational choices?
August 24, 2010

Psychology
What is your definition of wisdom?
August 9, 2010

Psychology
What is your definition of wisdom?
August 9, 2010

Psychology
What impact does academic achievement have on self-esteem? How does this impact explain high school drop-out rates?
August 9, 2010

English
In the New Testament, what word is used to identify letters the disciples sent to each other?
August 7, 2010

Math
Suppose you had $1000 invested at 6% compounded annually for 26 years, what would the current value be?
August 6, 2010

Ethnics
What are the characteristics of orientalism?
August 1, 2010

math-word problem
Please help me I am studying for an exam. Typist x can type 20 forms per hour and typist y can typev30 forms a nor. How will it take 1 and 2 to type 30 forms?
July 31, 2010

ICS. EA course
Thanks Sue
July 31, 2010

ICS. EA course
2. Which technique is used after a student gives a wrong answer, and the teacher continues to aim questions at that student? A. Redirecting C. Inquiring B. Probing D. Diverting
July 31, 2010

physics
a car travels along a highway with a velocity of 24m/s, west. then exits the highway and 4s later, its instantaneous velocity is 16m/s, 45degrees north of west. Calculate the magnitude of the average accelaration of the car during the 5s interval?
July 31, 2010

Psychology
I was going to cite the information when I use it. I was trying to find the answers to the questions.
July 26, 2010

Psychology
I believe I know how emotional or psychological problems develop in children. Abnormal rearing habits such as neglect and abuse cause the child to eventually internalize his/her environment and eventually that becomes their view of a normal life. They will hate themselves ...
July 26, 2010

Psychology
How do emotional or psychological problems develop in children? What are the roles of genetic, biological, and environmental factors on the development of these types of problems?
July 26, 2010

catering
what is a silence pad?
July 22, 2010

medical law and ethics
You are a health care professional working in a large office. Your administrator has asked you to prepare a poster summarizing the public duties of the physician as specified by law. The poster will be set up in the waiting room and will have a heading "We commit to these...
July 20, 2010

Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | Next>>

Search
Members