Wednesday

July 23, 2014

July 23, 2014

Total # Posts: 595

**Physics**

1) A fish jumps out of the water with a speed of 6.36 m/s. If the fish is in a stream with water speed = to 1.5 m/s, how high can the fish jump if it leaves the water traveling vertically upwards relative to the earth? 2)A ball is thrown by someone on a train moving at 10 m/s ...

**health**

what is the definition of social and physical health?

**Algebra**

Solve:25x^4-20x^2+3=0 =(sqrt5/5),-(sqrt5/5),(sqrt15/5),(-sqrt15/5). Can you tell me which one is correct.This is a second post to the first one.

**Algebra**

Thanks

**Algebra**

thanks

**Algebra**

25x^4-20x^2+3=0 = x= i sqrt3/5,-i sqrt3/5. I used the method complete the square. is this is correct

**help**

thanks

**help**

Subtract. Simplify by collecting like radical terms if possible. 3sqrt18-3sqrt2 =6sqrt2 I did help.

**Algebra**

thanks

**Algebra**

Use the foil method to find the product. (4x^6-7)(x^8-4) this is the answer that I got:4x^14-7x^8-16x^6+28

**Algebra 1**

PERFORM THE INDICATED OPERATIONS AND SIMPLIFY. x-8/x-9-x+1/x+9+x-27/x^2-81=x^3-81x^2-7x-27/x^2 Can you check this equation for me.

**dog behavior re post**

please check my answer thanks so much Which of the following best describes when extinction occurs A When a CS is repeatedly prsented and periodically followed ba a US B When a CS is repeatedly presented without the prsention of a US C CS and US are presented together D CS is ...

**dog behavior**

please check my answer thanks so much for your help. True of False generalization means The tendecy to respond to stimuli resmbling the conditioned stmulus I said True

**dog behavior**

please check my answer thank you very much for your help The Premack princciple suggets that A. reinforcement is highly frustrating the dog B. A more desirable activity can serve as a reinforcer for aless desirable activity C reinforcement isn't dependent on the dog motiva...

**dog behavior**

Please check my answer thank you very much For optimal appetitive classical conditioning which of the following is not important. A The dog should be hungry B THe training enviorment should be relatively distraction free C. THe dog should be give the chane to "use the bat...

**dog behavior**

Please check my answer thank you very much True or False Traning a dog to respond to the word "Good" as a conditioned reinforcer is accomplished by saying "GOOD" just before prsenting food I said True

**dog behavior**

please check my answer thank you for your help :) True or False Systematic desensitization can be used to reduce fear I said True

**dog behavior**

please check my answer thanks for your help :) Which of the following is an example of an unconditioned response? A. begging behavior at meal time B barking to get attention C Salivatig when food is taken ito the dog 's mouth D salavating when the dog hears the owner prepa...

**dog behavior**

please check my answer thanks for your help :) During extinction, an instrumenatl behavior may initially increase as the result of what ? A failure of the dog to obey the new instruction B. an extinction burst C. temorary defiance D. punishment resistance I said A

**dog behavior**

please check my naswer for me thanks for your help :) True or False Ivan Pavlov is credited with the systematic study of conditioned reflexive behavior I said True

**statistics**

. P(at least one head) is the same as 1 - P(no heads). Now, P(no heads) = 1/2 * 1/2 = 1/4 so P(at least one head) = 3/4. P(6) = 1/6. The total is 3/4 * 1/6 = 1/8. actually for part a is it possible the answer could be 1/8?

**statistics**

Another person had the exact same answers as you. This is for a major grade! Thank You!!

**statistics**

If you flipped a penny and a nickel, and rolled a die, what is the probability of: a. getting at least one head on the coins and a 6 on the die? b. getting a head on both coins and a 4 on the die ? c. getting a head on both coins and a 3 or a 5 on the die? d. getting a head on...

**Chemistry**

I dont understand how you get the mols product formed of (c) and why there are moles of a that remain unreacted

**english**

Are you serious? Come up with your own answers and others will help. This is a simple homework that you could get done in minutes.

**english**

Thanks Ms. Sue

**english**

When liquor was banned in 1920, hospitalizations for alcoholism and related diseases plummeted; in 1933, when Prohibition was repealed, alcohol-related illnesses rose sharply again. Legalization of cocaine, heroin, and marijuana would not curb abuse of those substances. a) tru...

**Math**

Can someone tell me this is right? Look for the domain. f(x)=log(sub3)(5x+1) 5x+1<=0 (5x/5)<=(-1/5) x<=(-1/5) x>(-1/5) (-1/5,oo) -domain

**Algebra**

I am looking for the domain. f(x)=log(sub3)(5x+1) 5x+1<=0 (5x/5)<=(-1/5) x<=(-1/5) x>(-1/5) (-1/5,oo) -domain

**Algebra**

Can someone tell me how to find a perpendicular line -3x+5y=7 My choices are 7/5 3/5 -5/3 -7/5 I cannot figure this out

**Geography**

What government imposed barriers stop or hinder the export of automobiles? "export" as in shipping to other countries i think?!

**Calculus**

ah!!i was so dumb! i was trying to multiplying numerator and denominator by 1+Z,of course it didnt work out...haha... thankyou !!!!

**Calculus**

two complex numbers Z and W are related by the formula W=(Z+1)/(1-Z) what is W if Z=1.5i? thanks for the help!

**Calculus--complex numbers**

the complex number Z satisfies Z/(Z+4)= 3+2i Find Z. please help thx!

**Calculus**

solve (Z^2)+5=-4/Z^2 how do i solve it?? the answer is +2or-2, or, +or -i. but i really dont know how to get this answer.i tried to multiply both side by Z^2, but i think it just made it more comlicated and i didn't get the right answer at the end...can someone please expl...

**Calculus--complex numbers**

thank you so much!!

**Calculus--complex numbers**

let z= a+bi be a complex number. it is given that the quotient (z-i)/(z-1) is purely imaginary. show that z lies on a circle and determine the centre and radius of this circle. OK, here's my working out...( i am using "X" as my times symbol) step1: (a+bi-i)/(a+bi...

**math**

finding the product for (7x+1)(x^2+1) and for the problem (2x+6)(x-10) Also finding the product thank you very much

**psychology**

Mira is a college student who lives alone in an apartment with her cat, Max. Whenever Mira walks into her kitchen and opens the squeaky drawer where Max's food is kept, he begins to salivate and runs into the kitchen, pawing at Mira to be fed. Even when Max has already had...

**geometry**

prove the following statements using a coordinate proof. the diagonals of a rectangle bisect each other.

**geometry**

place each given figure in a coordinate plane. what are the coordinates of each vertex? a) a right triangle b) an isosceles triangle

**physics**

A projectile hits a target placed on a level field. It has arange of 37.0 m. The nagle of launch is 33.4 degrees above the horizontal. What was the initial speed?

**Chemistry**

Oh, I see now. I really appreciate your help :) Have a wonderful day!

**Chemistry**

But I got an answer of 42.5K, which means when I convert it to degrees Celsius I get 42.5K - 273 K = -23.05 degrees Celsius. Does this sound weird to you then?

**Chemistry**

Is it okay to have a negative temperature (in degrees Celsius) in this case?

**Chemistry**

drwls, if you are there, I got an answer of 42.5 Kelvin, so then that means it is a negative number if converted to degrees Celsius? Question: The heat capacity of a bomb calorimeter is 87.5 kJ/K (this value is for the total heat capacity including that of the water jacket aro...

**Chemistry**

Hi, if anyone can give me help for any part of the question that would be great! I know how to draw the cell diagram, but am not sure what the half-reactions would be.... Here is the question: Give the cell diagram notation of the electrochemical cell that could be used to det...

**Chemistry - Thermodynamics**

The heat capacity of a bomb calorimeter is 87.5 kJ/K (this value is for the total heat capacity including that of the water jacket around the reaction chamber). If 67.2g of CH4 (g), is combusted under such reaction conditions, what will be the increase in temperature of the ca...

**General Chem - Electrochemistry**

Give the cell diagram notation of the electrochemical cell that could be used to determine experimentally the dissociation constant (Kw) of water. The standard reduction potential for O2 + H20 + 4 e- ----> 4OH- is 0.40 V For other possible half-reactions, see your textbook....

**General Chem**

The concentration of potassium ions inside a nerve cell is around 20 to 30 times that outside the cell. Calculate the potential difference between inside and outside a nerve cell, if it depends only on this ionic imbalance.

**Chemistry - 1st Yr College Level**

The corrosion of iron can be thought of as an electrochemical cell reaction. Calculate the voltage difference between two points of corroding iron differing only in their partial pressures of oxygen: 0.20 atm of oxygen at one point and 0.0010 atm of oxygen at the other. The re...

**essay please check writeacher**

Is public civility gone? I agree with the claim that there has been a loss of public civility in today's society. This is due to the fact that many people cannot control their own emotional behavior, People are trying to be different and break with the past, and one way in...

**grammar**

In the sentence, "He is as sly as a fox", what part of speech is "as"? Is "as sly as a fox" an adjective? Is "sly" the object of a preposition? I am so confused. Thank you!

**english**

Thank you!

**english**

Is it great-grandma, great grandma, Great-grandma, Great-Grandma, or Great Grandma? Thanks!

**Physics**

Also, how does the flow of current differ from a superconductor compared with the flow in ordinary conductors?

**Physics**

How does a semiconductor differ from a conductor or an insulator?

**Chem**

this is not done in lab. it's supposed to be calculated. people, like you, fail.

**Chem**

I don't get how to do this: What is the pH of the solution created by combining 11.30 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? What are the pH values if you take into account that the 8.00 mL of 0.10 M Acid was f...

**Math**

1/5x-12=22 No answer please just walkthrough process

**Math**

7a-8=15a+8

**algebra**

solve the porportion 2/7 = x/42 the answer is below, but which one A.) 1/2 B.) 12 C.) 2/7 D.) 6 Can you help me pleeezz

**Physics**

pls ans. dis tnx i need help:((

**Algebra-One to one function**

Why is the square of an addiction : (a+b)^2 = a^2+b^2 +2ab? Write an example describing the operation.

**Dr.Bob (about finding the ml of ethanol)**

Calculate how much 95% ethyl alcohol will be required to dissolve 0.75g of sulfanilamide at 78 degrees Celsius.

**Physics**

A race car moves such that its position fits the relationship x=(5m/s) t + (.75m/s3 ) t3 where x is measured in meters and t in seconds. A)Plot a graph of position versus time. B)Determine the instantaneous velocity at t=4s using time intervals of .4s, .2s, and .1s. I'm no...

**Math**

A man walks a certain distance at a certain speed. If he walks 1/2 an hour faster than his usual speed, he will take one hour less to reach his destination. But if he walks 1 km an hour slower than his usual speed, he will take 3hours more to reach his destination. Find the to...

**physics**

A person holds a ladder horizontally at its center. Treating the ladder as a uniform rod of length 3.55 m and mass 10.31 Kg, find the torque the person must exert on the ladder to give it an angular acceleration of 0.406 rad/s2. Should I set the given angular acceleration equa...

**bio (thnxs)**

Do transfer RNA have a poly A site? I know it is a anticodon area but I am not sure if this designates it as a poly A site. Thank you

**English**

need some help with commas: 1) I believe these experiences, my interest in blablabla, as well as my enthusiasm for blablabla (comma here or not?) make me a strong candidate for blablabla. 2)These are just some more reasons(comma here or not?) why I think (comma here or not?) I...

**Question**

How would you as a manager promote cultural diversity within your departement, provide example

**Question**

How would you as a manager promote cultural diversity within your departement, provide example

**Chemistry**

How would calculate % Control when given three sets of values? Would you define percent control please?

**english**

I have a book I need to cite that is a composition of works by the correspondents of the New York Times but it was edited by Bernard Gwertzman and Michael T. Kaufman. How do I do that? You'd simply name them and put Eds. after the second name. There would be no author name...

**English**

I am working on bibliography cards. If the book was written by one author, then translated by someone else, how or would i source the translator? http://wwwold.ccc.commnet.edu/mla/translations.shtml This webpage will explain and give examples of how to do this. =) Thank you so...

**Philosophy**

a) Using long or short truth tables (symbolize as necessary and show tables) determine and state whether the following argument is valid, briefly explaining your table; and b) if valid, demonstrate validity by deductions using Group I rules. Arg If Peter is perceptive, then Qu...

**Philosophy**

For the following argument, a) Translate into standard form (if not already in standard form), b) symbolize to simplify, and then c) determine whether the syllogism is valid or invalid, explaining why by reference to rules, AND by showing the appropriate Venn diagram: Arg Only...

**Philosophy**

Is not telling the truth morally wrong from a divine command perspective? IT depends on the divinity involved. Think about that. What about telling a half-truth? Again, it depends on the divinity invoked. I know religious teachers who lie, cheat, and steal: It is rationalized ...

**Philosophy**

Provide a premise that would permit the value-expressing conclusion "Sarah ought to tell the truth" from the descriptive premise "Sarah's son is asking if he's adopted." Sarah's son is asking if he's adopted. Sarah's son has access to hi...

**Philosophy**

Why aren't all causal studies done as experimental studies, rather than non-experimental studies? Sometimes the effect is not desired. What causes murders? What causes Rape? what causes child molestation? Does one want to do causal experimentation?

**Philosophy**

a) Using long or short truth tables (symbolize as necessary and show tables) determine and state whether the following arguments are valid, briefly explaining your table; and b) if valid, demonstrate validity by deductions using Group I rules. Arg 1. P-->Q 2. ~P ^:~Q

**Philosophy**

For the following arguments, a) Translate into standard form (if not already in standard form), b) symbolize to simplify, and then c) determine whether the syllogisms are valid or invalid, explaining why by reference to rules, AND by showing the appropriate Venn diagram: Arg A...

**Philosophy**

Use the diagramming method for identifying the argument structure of the following: "The Democrats tend to be to the left on social policy, and the new Congress is controlled by the Democrats, so we can expect a swing to the left. Of course, there are always exceptions.&q...

**Philosophy**

a) Using long or short truth tables (symbolize as necessary and show tables) determine and state whether the following arguments are valid, briefly explaining your table; and b) if valid, demonstrate validity by deductions using Group I rules. Arg 1. P-->Q 2. ~P ^:~Q Arg If...

**Philosophy**

For the following arguments, a) Translate into standard form (if not already in standard form), b) symbolize to simplify, and then c) determine whether the syllogisms are valid or invalid, explaining why by reference to rules, AND by showing the appropriate Venn diagram: Arg A...

**Philosophy**

Describe commonly accepted criteria for establishing the credibility of premises (claims).

**Philosophy**

Use the diagramming method for identifying the argument structure of the following: "The Democrats tend to be to the left on social policy, and the new Congress is controlled by the Democrats, so we can expect a swing to the left. Of course, there are always exceptions.&q...

**Philosophy**

Give an example of a truth-functional syllogism.

**Economics**

From reading a paragraph, I gathered following facts. Bills and coins outside the bank: 175 Checkable deposits 418 savings and time deposits 1782 currency inside bank 28 central bank deposit 186. so.. the banks reserve is 186+28=214 monetary base: 186 + 175 = 361 M1: 418 + 175...

**Economics**

The First Student Bank has the following balance sheet (in millions of dollars)

**Math**

f(x)=x-1 and g(x)=2x Perform the indicated and state the domain f(x)/g(x) If 2x is in the denominator, then x cannot be equal to zero, so that is excluded from the domain.

**percents**

In a survey 200 people were asked what they liked to do the most.Whats percent about? If 150 people said they liked to swim, then the percent of those who enjoyed swimming would be (150/200*100 = ?? percent. Those who liked to do something other than swimming would be (50/150)...

**Social Studies**

Where can I find information on the lifestyles in the Southeastern U.S. in 1906? This article has some information. http://en.wikipedia.org/wiki/Southern_United_States#20th_century https://www.cia.gov/cia/publications/civilwar/docs/p31.htm

**science**

Using Dimensional analysis, how do you set up a problem to find the density when given mass and volume? Suppose the mass of an object is 40 grams and the volume is 20 mL. Density has units of grams/mL. Then density = 40 g/20 mL = 2 g/mL. If this isn't exactly what you were...

**orientalism of muslim and arab american**

Thanks for all of the information...I am glad to know that I am not the only one struggling to understand UOP's reading materials :D

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