Stephen

This page lists questions and answers that were posted by visitors named Stephen.

Questions

The following questions were asked by visitors named Stephen.

Why is it unlikely to find earthquakes at depths greater then 300km? (something to do with the athenosphere) According to the principle of isostasy, what will happen to the elevation of a mountain range in the early stages of erosion? Why are continents u...

Consider a space habitat that consists of a rotating cylinder. If the variation in g between one's head and feet is to be less than 1/105 g, then compared to one's height, h, what should be the minimum radius of the space habitat? (in terms of h) The cent...

How do you add this? -5/6 + 1/2 -5/6 + 1/2= 8/6 I know to find the lowest common denominator,which is 6, but the numerator is larger than the denominator which is 8/6. How do I solve? Wouldn't the answer be -1/3? yes, the correct answer is -1/3 They must...

The lowest recorded temperature in Sweden is -38 degrees and the lowest recorded temperature in Russia is -68 degrees. How much higher is the low temperature in Sweden than the low temperature in Russia. -68 + -38 = -106 degrees. Did I solve this right? w...

Proofread Please!!! ¡El acontecimiento que ha ocurrido hoy eso ha dado lugar a este día que era extraordinario ha sido que he conseguido presentes porque es mi cumpleaños hoy! Hoy en la universidad de Carolina del Norte en la colina de la capilla mis amig...

" A condition of gravitational and bouyant equilibrim between earth's litosphere and asthenosphere" ... is what?

What is the smallest cube that is diveisible by 16 but is not a perfect square?

A class has 10 boys and 12 girls. In how many ways can a committee of four be selected if the committee can have at most two girls?

How can you tell that Iron and Sulphur have formed a mixture before they are heated?

At the school store Juanita bought two books and a backpack for a total of $26 before tax. Each book cost less than $8. Find each price.

How do you find the definite integral of an absolute function? ∫_0^3|2x-3| lower limit= 0 upper limit = 3

I instructed the patient to return tomorrow. return = adverb modifying verb is tomorrow. The gentleman was unusually talkative when he came out of the anesthetic. unusally = adverb mod/verb = talkative out= adverb modifying verb = anesthetic "I will never...

I want to improve the flow of this sentence. I would greatly appreciate any insight, minor or major. Here is the sentence, which is intended as a thesis: L. Ron Hubbard, in founding Scientology, has created a dangerous contemporary cult that suppresses fr...

A block of mass M hangs from a rubber cord. The block is supported so that the cord is not stretched. The unstretched length of the cord is L0 and its mass is m, much less than M. The "spring constant" for the cord is k. The block is released and stops at...

In an experiment, 23.0 g of ice at –25°C is converted into steam with a temperature of 124°C. How much heat is required for the process? The following data may be of use: vap = 2260 J/g; Hfus = 334 J/g; Cp(ice) = 2.06 J/g • °C; Cp(water) = 4.18 J/g • °...

How much heat energy is released to surrounding when 15.0 g of water at 35°C is converted into ice with a temperature of -45°C? vap = 2260 J/g; Hfus = 334 J/g; Cp(ice) = 2.06 J/g • °C; Cp(water) = 4.18 J/g • °C; Cp(steam) = 1.99 J/g • °C

In an experiment, 230 kJ of heat energy are released to the surroundings when steam is converted to liquid water. Calculate the number of grams of water condensed. The following data may be of use: vap = 2260 J/g; Hfus = 334 J/g; Cp(ice) = 2.06 J/g • °...

What will be the final temperature of a 22.0 g piece of iron (Cp = 25.09 J/K • mol), initially at 25°C, if it is supplied with 28.2 J from a stove?

Given the enthalpies of formation for the following substances, determine ƒ´Hrxn for Cl2(g) + C2H2Cl2(g) „_ C2H2Cl4(g) Substance ƒ´H (kJ/mol) Cl2 0 C2H2Cl2 4.27 C2H2Cl4 ¡V155.6

Given the reaction shown below, calculate: (a) The amount of NO2, in grams, generated from reactants if 300.23 kJ of heat energy is released during the course of the reacton. (b) The heat energy released if 33.23 grams of O2 is consumed in the reaction. 2...

If I invest £25,000 a year each year for 16 years and get a 5% return what will my total capital be ?

What do you call a high island that rises from the deep ocean floor on a volcanic foundation?

In a patent-driven market, using the concept of minimum efficient scale of production, explain what would happen to competiton and to price when the patent expires? I don't see how I can interweave the minimum efficient scale of production into this quest...

What is the answer to: The plane was purchased new in 2006; therefore, x = 0 represents the year 2006. X - axis (horizontal)= years starting from 0= 2006 and increasing by 0.5 years X - axis (vertical)= price in $ amounts from 24,000 to 240,000 a). List t...

The table below shows the measured dimensions of a prism, and the maximum and minimum possible values based on the greatest possible error. Dimensions l w h Measured 9 5 3 Maximum 9.5 5.5 3.5 Minimum 8.5 4.5 2.5 a. Find the measured volume. b. Find the ma...

Helping my child study. Are there any online guides that can help me teach how to predict the products of a reaction. i.e. _ Ag(NO3)+ _ CaCl2 yields Really want to be able to teach my child how to do this rather than have the answer. Thanks

5+2(4y-4)=3(2y-1)solve

2/3(5/4+2d) + 1/3=2/5

When 15.3g of NaNO3 was dissolved in water inside a constant pressure calorimeter, the temperature fell from 25.00 °C to 21.56 °C. If the heat capacity of the calorimeter (including the water it contains) is 1071 J/°C, What is the enthalpy change for diss...

Cell formulas are usually displayed in the cell, while the contents are displayed in the name box T or F ??

A rectangular box has a square cross-section and the sum of its length and the perimeter of this cross-section is 2 m. If the length of the box is x m, show that its volume V m^3 is given by V = [x(2-x)^2]/16. Hence find the maximum volume of the box.

A 70 kg man carrying a 10 kg suit case climbing a ladder of 5 m in two minute, power developed by the man is (g=10 m/s2 ).?

a/b + b/a = x a/b - b/a = y in the equation above, if a is (not equal) to 0 and b is (not equal) to 0, which of the following must be equal to x^2-y^2? a. 2 b. 4 c. ab/2 d. a^2 b^2/2 e. 4a^2b^2

The sum of two numbers that differ by one is x. In terms of x, what is the value of the lesser of the two numbers? a. x+1/2 b. x/2 c. x-1/2 d. x/2 -1 e. 2x+1/2

AB+BA = 1A4 In the correctly worked out addition problem above, A and B represent two different digits. What digit does A represent? a 3 b 4 c 5 d 8 e 9

a/b + b/a = x a/b - b/a = y in the equation above, if a is (not equal) to 0 and b is (not equal) to 0, which of the following must be equal to x^2-y^2? a. 2 b. 4 c. ab/2 d. a^2 b^2/2 e. 4a^2b^2

what is the french of I love you?

A) What is the velocity of the flowerpot when it strikes the ground? The acceleration of gravity is 9.81 m/s2 ? B) How much time does a passerby on the side-walk below have to move out of the way before the flowerpot hits the ground?

A flowerpot falls from a window sill 37.6 m above the sidewalk.? A) What is the velocity of the flowerpot when it strikes the ground? The acceleration of gravity is 9.81 m/s2 ? B) How much time does a passerby on the side-walk below have to move out of th...

I am a number between 0.23 and 0.31. I have 3 digits. All of my numbers are the same. What number am I?

I am a number between 0.23 and 0.31. I have 3 digits. All of my numbers are the same. What number am I?

A car has a mass of 1.34 × 10^3 kg. If the force acting on the car is 6.46 × 10^3 N to the east, what is the car’s acceleration?

A horizontal force of 234 N causes a 350 N object to accelerate across a horizontal floor. if the coefficient of friction is 0.15, what is the value of the frictional force opposing the acceleration?

Find the amount of solute deposit when 200 cm 3 of the solution is cooled from 55oc to40oc.

The expression log(x^n/ radical y)is equivalent to 1. n log x - 1/2 log y 2. n log x- 2 log y 3. log (nx) - log (1/2y) 4. log (nx) - log (2y)

y = √3x + 2 cos(x), 0 ≤ x < 2π Find a derivative y'.

A 650N man jumps out of a window into a fire net 8m below. The net stretches 1.5m before bringing the man to rest and tossing him back into the air. What is the maximum potential energy of the net compared to its unstretched potential energy?

A perfectly cylindrical container standing upright with a top and bottom(an oil drum or coke can for example) of area A has an empty mass of M and a height of H. It is filled with a liquid of uniform density(p)up to the height of h. When the container is...

25 milliliters of tartaric acid solution is titrated against 31 milliliters of NH4OH. What is the normality of the NH4OH?

what is the result of using 75g of dihydronoxybutanedioric acid in one liter of H2O in a titration? I do not have a answer.

25mL of tartaric acid solution is titrated against 31mL of NH4OH. What is the normality of the NH4OH? Please explain how to work this problem.

I have been knocking around this question for what seems to be an eternity. We have not gotten that far in this class so this is for extra credit. I have managed to get myself confused about something that should be easy. 25mLof tartaric acid solution is...

14) Given the following vectors, find the magnitude and direction: • A = 47 m and the angle is 0° • B = 62 m and the angle is 35° This is relative to the x-axis Magnitude: 401 m 140 m 104 m 0 m 503 m Direction: 20° 45° 55° 220° 90°

How do i do them? :l 7. At 2:00 P.M., the angle between the hour and minute hands on a clock is 60° (approximately 1.05 radians). The arc length formed by the two hands is 2.63 inches. What is the radius of the clock in inches? (Round to the nearest tenth...

1. The curve y=10/2x+1 -2 intersects the x-axis at A. The tangent to the curve at A intersects the y-axis at C. (i) Show that the equation of AC is 5y+4x=8 (ii) Find the distance of AC 2. The equation of a curve is y=1/6(2x-3)^3-4x (i) Find dy/dx (ii) Fin...

How many Liters of a 5.00 M Zn(NO3)2 would be needed to react with 200 g of (NH4)2S?

Given Zn(NO3)2 + (NH4)2S = ZnS + 2NH4NO3 (molar mass of Zn(NO3)2 189 g, molar mass of (NH4)2S 68 g), what is the molarity of a 250 ml solution if you have 123 g of zinc nitrate?

If you add 100 g of salt to 5 Kg of cooking water, how will it effect the boiling point? (molar mass of NaCl 58.5 g, Kbwater=0.51 degrees/m)

At which point is more silt in the water in the mountains or on flatland why

I need help with debug Debug06-02 // Program lets user input scores on four tests // Average is computed and letter grade is determined // Letter grades are based on 90 for an A, 80 for a B, and so on start string name num score num NUM_TESTS = 4 num NUM_...

Use a sum-to-product formula to rewrite cos5w+cos2w as a product.

a boy notices a special needs student sitting by himself during recess. How can he get the student involved in a meaningful way? a- coach one of the teams b- be the all time referee c- the game be modified to allow for 2 goalies d- the game be played by r...

what part of the carbon process is responsible for the release of carbon at a p[power plant combustion photosynthesis digestion decomposition my answer is a combustion

Solve using the annihilator method Y"-8y'+20y=5xe^(4x) sin (2x)

If there is a grid and you are going to draw three different rectangles so that each has an area of 12 square units and they all have different widths. What are the dimensions of the rectangle? Please help answer

The number 2 is chosen to begin a ladder diagram to find the prime factorization of 66. What other numbers could have been used to start the ladder diagram for 66? How does starting with a different number change the diagram?

Pain says she should get $3 discount on the price of each shirt and a $3 discount on the price of each pair of jeans. Part 1 Write and simplify an expression to find the amount she would pay if this is true. Part 2 why are the amounts Pani pays in a and b...

how many molecules of N2 could fit in a 2.00L soda bottle at 23C and 755mmHg

Ranee keeps £360 in a savings account for a year. At the end of the year she gets £13.50 in interest.Work out the interest rate on the account.Give your answer as a percentage. What's the answer guys and girls

In a sale of electrical equipment, the price of all goods is reduced by . Work out the sale price of the following. a A DVD player which normally costs £88 b A portable audio player which normally costs £150 c A laptop computer which normally costs £986

A football match between United and City is watched by 24 000 spectators. Of the 24 000 spectators, 14 112 support United and 8208 support City. The rest of the spectators are neutrals who support neither team. a.Work out the percentage of the 24 000 spec...

BH Holding Inc. is considering undertaking a capital project, costing $8 million today. in addition, the project will be installed over the next 2 years, costing $1.0 million at the end of the first year and $0.5 million at the end of the second year. the...

Rationalize numerator. ((sqrt7)-3/4)(sqrt7+3/sqrt7+3) I got that the answer is 7-9/4sqrt7+12= -2/4sqrt7+12

5^-1/2 x 5x^5/2(5x)^-3/2= 1/sqrt5 x sqrt5x^5 x 1/sqrt5x^3= ??? I need to simplify and I need help understanding what the next step is

Solve the complex fraction ((t^2/sqrt t^2+1)-sqrt t^2+1))/t^2 Is the LCD to multiply by sqrt t^2+1????? Please help!

Simplify 5^-1/2 * 5x^5/2 (5x)^-3/2 My final answer was x/sqrt5

t^2/ã(t^2+1) - ã(t^2+1) ------------------------- t^2 Is the final answer -1/t^2 sqrt(t^2+1)

Factor by removing the common factor with the lesser exponent 2x(x-5)^-3 -4x^2(x-5)^-4 I don't really know how to do this. The final answer I got is: 2x(2x^2-10x+1) -------------- (x-5)^4

Simplify. -x^3(1-x^2)^-1/2 -2x(1-x^2)^1/2 ------------------------------- x Do I first start by getting rid of the negative exponents? I do not know where to begin. Please help.

Change these fractions to twentieths and then arrange them in order of size, smallest first. 7/20 2/5 3/4 7/10

Why did the Spanish and French start fighting? Question from Social Studies weekly week 8 for 4th graders.

The question goes as follows: Two trains are moving toward each other at speeds 17 mph and 43 mph. How far apart are they 1 minute before they pass each other? So I have been trying to answer this question for a while now, and it is turning out to be a li...

A hiker started to climb up the hill at 6:00 am and either kept climbing up or rested at some place(s). He reached the top at 6:00 pm. he rested there for the next 12 hours. Next day at 6:00 am, he began to travel down the same path. He either moved downw...

How does the boiling point of ethane (CH3CH3) compare with that of ethanol (CH3CH2OH)? 1. The boiling point of ethane is higher because it has stronger London dispersion forces. 2. The boiling point of ethane is higher because it has stronger dipole-dipol...

What effect will dissolving larger amounts of salt in a beaker of water have on the concentration and conductivity of the solution? 1. The concentration does not change, but the conductivity increases. 2. Both concentration and conductivity decrease. 3. B...

Context: The function v(t) represents the velocity of a particle moving along a horizontal line at any time, t, greater than or equal to zero. If the velocity is positive, the particle moves to the right. If the velocity is negative, the particle is movin...

Just out of curiosity, is it okay to use the phrase "and so" in a sentence? Like "Johnathan knew that he had to help the boy asking a question on Jiskha. And so, he did just that, and the boy went on to being the happiest boy on earth." I just need to kno...

Is the word "and" still considered a coordinating conjunction if it is being used in a list rather than to connect two independent clauses? For example: "Jeff wants to buy an apple, a pear, and a banana" Is the "and" used in that sentence still a coordina...

Let K(x)= (sin(3x-7)) / (e^x-2) (I'm sorry if it is not clear here, but the denominator in K(x) has the natural number, e, to the power of just x. So "x-2" is not the exponent. "x" is the exponent). The Question: Does K(x) have a horizontal asymptote? (I'...

if V(r)=4/3 pir^(3) find (v2r)/(vr)

Answers

The following answers were posted by visitors named Stephen.

You have to get "f" by itself. Since you are subtracting 7 from f, to get it by itself, add 7 to both sides. -7 + 7 = 0, this clears f by itself and 7 + 5 = 12. So 12 = f

Sexual reproduction is by conjugation

i don't know either lol, i tried to get it from word document and i copied and pasted it that way

"For x<1.5, |2x -3| = -2x + 3" don't you mean .2x - 3?

wow, this thread has gone on for awhile UOP student here as well...apparently this class has some issues

DrBob222 explained it well i think the first time. Unless 3.33ml is the wrong answer...

so whts the answer

Whoops, the question is: A flowerpot falls from a window sill 37.4 m above the sidewalk.

When an object is moving downwards its weight is 0kg.Because is in free-fall experiences the gravitational force.

2,3-Dihydroxybutanedioic is tartaric acid HOOCCH(OH)CH(OH)COOH MOL WT> 150.09 What is the result of using 75g of this tartaric acid in one liter as a titration. I am not told what the one liter solution is for the titration.

Solve using aritmetic progression and quadratic equation, how? Sum of AP = n/2(2a+(n-1)d) Where n is the number of terms, ie in your case the number of rows of seats, 'a' is the number in the first row (a=262) and 'd' is the difference in the next row (d=...

Plug the slope of 61.6, y of 585 and an x of 30 to get the y-intercept of -1263 which is b. So your formula would be y = 61.6x - 1263 for this problem.

hyptotenuse AC= 1480 opposite CD= 784.28056 adjacent AD 914.7554

I would agree but that was all that was given for the question.

A) prepositional phrase modifying an adverb

I think that you are correct.

Canadian Health Care: The Pros and Cons of Canadian Health Care Part 2 If you look up that topic on the Internet I think that you will get your answer.

Connectionist models provide evidence that If you plug the above into the internet you will find your answer.

Slope = rise / run 13 / 5 = slope 2.6 = slope

What is your answer?

A kind of transport by which ions or molecules move along a concentration gradient, which means movement from an area of higher concentration to an area of lower concentration. you are correct

1.1 and 2.2 your answers are correct

Water is continually flowing among the oceans, land, and atmosphere (Figure 5.1). Annually, approximately 496 100 km3 of water leaves the atmosphere as precipitation. [ The same amount of water is returned to the atmosphere annually as evaporation so that...

The 2 number cubes have a probability of 3/6 and 3/6 of getting an odd number. There are 26 letters so the chance of getting k l or m is 3/26 The solution is 3/6 x 3/6 x 3/26 or 27/936 or 3/104

Welfare payments or consumer subsidies are the benefits that government provides to the consumers without asking anything for return. In other words, it is the transfer payment made by government for the benefits of consumers. There are many reasons why g...

the 1st one is 5/14 and the 2nd one is 3/13 5/14 times 3/13 = 15/182 your answer is correct

Put the numbers in order 15,15,16,18,21,22,22,22,24,34,36,50,60 Then start your stem plot 1 2 3 4 5 6 And fill in the appropriate numbers

OK so you know that with the word product it's a multiplication question. So what times 4 = 16. Try 4. 4 X 4 =16

3 per 10,000 becomes 30 per 100,000 35 per 100,00 becomes 350 per 1,000,000 350 + 13 becomes 363 per million

The 1st thing you would do is figure the percent of a 5 coming up from the first 8 rolls Sally did. 5/8 = 25% The chance that she would roll a 5 on the 9th attempt is 25%

For m minutes, A: 25.00+0.10(m-30) B: 20.00+0.12(m-30) So, just solve for m when A=B Kind of strange wording for a math problem in school. The only way it would make since is if it were 2 part question to the solve for x minutes.

The 1st thing that you need to do is add up all the costs to make each item. Potato Skins $3.95 potato = $.89 cheese = $.30 Sour cream $.15 Bacon = $.08 Total =$1.42 Cheese fries $3.75 fries $.65 cheese $.30 chili $.35 Total $$1.30 Potato Skins $3.95 cost...

That is correct

I would guess D as well a birds eye map would show a view of physical landmarks from a birds vantage point meaning the sky. A road map is just road names.

I would think that as 1/4 watched and recorded the show based off of the wording.

Im confused by your question, do you mean manipulate as in change?

Though you should follow the way of Ms. Sue it is important that you do you own work because skills such as this math will only be learned through your trial and error

Weather seems like the best choice.

Daniela what uncomplex therois about plants could you teach preschoolers

What is your guess as to the answer?

A computer worm is MOST likely to attack your computer’s Memory.

By definition, status offenses are acts that are considered criminal only when committed by a juvenile. They include truancy, running away from home, underage drinking, disobeying parents, and even purchasing tobacco products. In some jurisdictions, a sta...

I count 7 months, so rate of change per month = (800 - 1050)/7 = - $35.71 balance is declining at a rate of appr $36 per month

The purpose of a scatter plot is to show the type of relationship, or correlation, that exists between two sets of data. I would say that fits b pretty well.

Twelve of the post Soviet countries formed the Commonwealth of Independent States, to maintain the trade links established during Soviet times

Please help answer thanks

Please help answer

Can you help with part 1 of the problem?

thanks so the answer is 3.75%

what about the other 2

please help i can't do them

thanks i have now done the last 2

i don't have the answer for b

The numbers that your showing are in increments of 50 and would be shown on your graph as such. If your looking for further breakdown the increments in between would be in 25 units. 50-75-100-125-150-175-200-250-300

-5x^2 + 3x^2 = -2x^2 5x - 4x = x 5 -2 = 3 -2x^2+x+3

The 4th amendment says that probable cause must be established for a domestic search warrant.

The best answer is A the 6th amendment.

after more simplification I got x^2(sqrt5x)/(sqrt5)(x sqrt5x) can I cancel out the sqrt5x from the denominator and numerator?

Is the final answer x/sqrt5?

The a is supposed to be a square root

I'm just trying to write it like it appears in the book. (5)^-1/2 * (5x)^5/2 (5x)^-3/2 Simplifies to 1/5 * ã5x^5(1/ã5x^3) How do I get to xã5? I'm confused. I've tried many times.

Im looking for the answer not the question ffs

1) No Change 2) Left 3) Left 4) Right

They become uncertain hopeless,careles and even lonely becouse of the pressure

Ummmmm @ Anonymous how are you going to make a phone call home when you don't even have are phone numbers? Huh? Thought so, and you don't know any of us. So uh, your wrong.

Thank you for your response, but to clarify, why is "(17+13)" important in the problem?

Reiny I believe you have made a mistake, but using the same method, the correct answer would be 1mile (because (1/60)*(60)). But still, thanks for the help.

Yes, this is a component of writing with an academic voice.

What I ended up getting was v(t)=3 sin( pi/3 (t- ((4-pi/2)))) -1 so B= pi/3 and C=4–pi/2

Alright, thanks!

(1/2)x+(3/4)x=(4/3)x+2 solve for x (5/4)x=(4/3)x+2 -(1/12)x=2 x= 2 * -12 x=-24 the number is -24

Alright, I understand. Thank you!

If the the girls are not being replaced (i.e put back in the lot) it would be (16/54)+(15/53)+(14/52)+(13/51) since you're not replacing them, the amount of people inside the group decreases. Now fi the candidates were being replaced, the amount of candid...

(1/2)17+(1/6)= Since a coin has 2 sides, the probability of landing a heads is 1/2, and because there are 17 of them, you multiply the 1/2 by 17. The die is being rolled once so the porbability of rolling a 4 is 1/6. Add them together you get what you nee...

1|3366 2|12334445555666789 3|022223344489 4|237 5|2 The first quartile, if your plot was to be divided equally into 4 quarters, would be from the first point around the 9th point. So for example, if you're staring from the top, you'd add up the points fro...

LOL are you doing Besner's webwork too?

Find the estimat e of 145% of 58

I believe your equation for velocity is incorrect. In this case V=-sin(sqrt(t))*1/2(sqrt(t))^-1/2 Your equation for velocity is missing raising to the -1/2 power at the end. applying that piece will make velocity undefined at t=0.

Oh lol, I think I see what we're doing differently. I thought that the first instance that the particle would be at the origin was when t=0 but it really is when t=pi/2. Basically, I substituted the wrong number. Thank you, and I'm sorry for not seeing yo...

Thank you very much, you opened my eyes to my error, however I see a slight mistake in your work as well. You got here: dy/dx = (y-1)/(x^2) dy = (y-1)/(x^2) dx dy/(y-1) = x^-2 dx this is all correct, but when you integrate it should be this: ln (y-1) = -1...

I think we have a golden answer! Thank you so much for your wonderful help, it means a lot that you'd take the time to help me out and teach me something along the way. I have no idea how I made it to a calculus class without knowing how to solve logarith...

Thank you too steve!

i am trying to understand the math, not just get the answer

Solved this question.

oooh you beauty thannnnnnnnnnk you so much much much .....

I like it...the methord given..is ok..thank you guyz