Posts by dan
Total # Posts: 1,225

Physics
A particle of mass m = 0.40 kg oscillates on the end of a spring with an amplitude of 0.30 m. At t = 0, it's at it's equilibrium position (x=0) and is moving in the positive xdirection. At 0.20 s later it is at x = 0.25 m. a. What is the lowest possible value for the ... 
soil science
True or False: for a particular soil, pressure just under the water table is negative 
groundwater science
what is weight density (lbs/ft3)of a fluid filling a cylinder 1.4 ft high and cross section area of 0.2ft2 if the fluid weighs 15.1 lbs? 
MGT 460 Leadership Priorities & Practice
does not suggest that Catherine goes to see every romantic comedy that plays at her local movie theater 
Math
Moira paid $4.50 for a movie and 2 bags of popcorn. All together she spent 6 dollars. What's the cost for a bag of popcorn? 
marketing
What are the three essential lessons from Theodore Levitt's Marketing Myopia? 
Pre Calc
√(x+2) 7 =√(x+9) 
Calculus
√(x+2) 7 =√(x+9) If you could show your work on how to get the answer that would be awesome. I really need to learn how to do this 
physics
A space vehicle is coasting at a constant velocity of 20.5 m/s in the +y direction relative to a space station. The pilot of the vehicle fires a RCS (reaction control system) thruster, which causes it to accelerate at 0.390 m/s2 in the +x direction. After 49.0 s, the pilot ... 
literature ... i really need corrections
thank you... 
english.. can u tell me if my answers are right
1)c 2)c 3)c 4)c .. k this looks ridiculous but i think the answers are all C !!! please check!!! 1) At the end of the poem(song of myself number 52), the speaker a.proclaims his love to democracy b. encourages us to read more of his poems c. reaffirms his link to the reader d... 
english
i've read most of these sites but couldn't really make sure of my answers i mean for example number 1 i was and still is confused between a and d ... i am not really able to comprehend the question. do you think my answers are right? it would really help 
english
1) The tone in the song of myself number 52 is best described as a. lighthearted b. bombastic c. detached d. intimate 2) Which images best appeals to the sense of hearing or sound? a. "the spotted hawk swoops by and accuses me he complains of my gab and my loitering"... 
COM/155
Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. Bold each adverb. Underline each adjective. Compare the event to one or more similar events. When comparing, use at least three ... 
COM/155
thank you! 
COM/155
Since attending Axia College, I am a better writer. I am more concise and more accurate. Therefore, I am a more effective writer. I have learned how to better express myself. I am not the best academic writer or the most prolific, but I can honestly say that since I have been ... 
COM/155
okay! thanks! 
COM/155
Compare and contrast your abilities as an academic writer now as opposed to when you began at Axia College. Using four comparatives and four superlatives within your responses, explain what has led to these changes and what changes you will make in the future. My reply: Since ... 
com/155
I have never owned a credit card. I do not believe in them and I do not plan on ever owning one. I do not know what my credit score is because it usually cost money to get a credit check. However, I believe that my credit score is low, because of hospital bills. As of right ... 
com/155
Review pp. 517–520. Describe your experience with credit and credit cards in a brief paragraph using at least five adverbs and five adjectives in your description. Bold the adverbs and underline the adjectives. What is the most effective way to determine whether a word is... 
11th grade specialist math
Thanks for the reply. I'm still stumbling over where point C is. "Drop perpendiculats parallel to the sides of the rectangle until they meet". A diagram would most definately be helpful. Once again, thank you for your help. 
11th grade specialist math
I'm not sure whether this question is too difficult, or perhaps it is lacking a diagram, but I have been getting no response to this question, something I had not been not expecting. To any maths experts out there, I would absolutely LOVE your help, because I just can'... 
math
Thank you so much!! Your explanation was very clear! Thank you for your help! 
math
A shaded circle just fits inside a 2m x 3m rectangle. What is the radius in metres, of the largest circle that will also fit inside the rectangle but will not intersect the shaded circle? Drawing a diagram would help with this question. Thanks. 
com 170
write a brief paragraph about which paragraph was more effective and analyze why this is so from chapter 32 real essays with readings appendix g include a discussion of sentence variety and rythem of the author's writing 
math
yup.. it didn't work... it deleted all my spacing.. please ignore the above post. 
math
 I/ \/ ?? \I I \ rad I I2m diameter II I circle I I I / I I\ / I  okay... my attempted diagram.. It probably won't show up correctly when i post it, and confuse everyone more... but i thought I'd give it a shot. 
math
A shaded circle just fits inside a 2m x 3m rectangle. What is the radius in metres, of the largest circle that will also fit inside the rectangle but will not intersect the shaded circle?  I have a diagram with me, but I don't ... 
com 170
write a brief paragraph about which paragraph was more effective and analyze why this is so from chapter 32 real essays with readings appendix g include a discussion of sentence variety and rythem of the author's writing 
com 170
identify the three key parts of a paragragh. discuss their relationship with one another. 
4th grade math
3/4* 
4th grade math
gina is correct because 3/4 equals 0.75. 4/5 is bigger than 3/5 by 1/20. 
Math
thanks! 
Math
make a conjecture (obsevations based on patterns) for each sequence below. a)7,10,13,16 b)4,44,444,4444,44444 c)2,10,50,250 d)1,2,6,42,1806,3263442 i got some of them but i think they need to be writen better a)Add three to each number to get the next number in the sequence. b... 
physics
Sam tosses a ball horizontally off a footbridge at 3.2 m/s. How much time passes after he releases it until its speed doubles? 
Math
could you please solve the problem completely .. i am still confused. Thanks. 
Math
Given [(x5)/(x3)]^2 . Find any stationary points and any points of inflection. Also find any horizontal and vertical asymptotes. 
Math
Given y = x^4 − 4x^2 + 50. Find any extrema and any points of inflection 
Calculus 1
Given y = x^4 − 4x^2 + 50. Find any extrema and any points of inflection 
Math
how did you get x to equal 400 
Math
to identical jars are filled with equal amount of marbles. the marbles are coloured red or white. the ratio of red to white marblesis 7:1 in jar 1 and 9:1 in jar 2. if there are 90 white marbles altogether, determine the number of red marbles in jar 2. 
Physics
f = ma u(k) * f(normal) = m*a u(k) *m*g=m*a u(k) *g =a a = 0.10 * 9.81m/s^2 = 0.981 m/s^2 this is defined to be a negative acceleration v = u + a*t so t = (vu)/a and x = t * (v+u)/2 so together x = (v+u)(vu)/2a where x = distance, v = final speed, u = initial speed, t = time... 
Chemistry
How many grams of iron can be produced of 156000 calories of heat are absorbed by a large enough sample of iron III oxide 
Calc
express 3ln(r) 5ln(s)+ 7ln (t) as a single logarithm. 
chemistry  chromatography
We used three different color dyes in both alcohol and water. So its the chemical makeup of each color that determines the Rf value? 
chemistry  chromatography
Hello, can you tell me why different colors have different rf values 
Basic Electronics
discuss your thoughts on the use of thevenin equivalent circuit. 
Physics
The displacement from the equilibrium caused by a wave on a string is given by: y(x,t) = (0.00200 m)sin[(40m^1)x(800s^1)t]. What is the number of waves in 1 m? 
Physics
Suppose a monatomic ideal gas is changed from state A to state D by one of the processes shown on the PV diagram. Find the total work done on the gas if it follows the constant temperature path AC followed by the constant pressure path CD. A = 2atm and 4L C = 1atm and 8L D... 
physics
A town is planning on using the water flowing through a river at a rate of 5.0X10^6 kg/s to carry away the heat from a new power plant. Environmental studies indicate that the temperature of the river should only increase by 0.50ºC. The maximum design efficiency for this ... 
chemistry
CuCl > Cu+ & Cl Ksp = [Cu+2] [Cl] ========================= Cu+(aq) + 2 Cl ‾(aq) ==> CuCl2 ‾(aq) K = [CuCl2 ‾] / [Cu+2] [Cl]^2 =============== (K) (Ksp) = [Cu+2] [Cl] times [CuCl2 ‾] / [Cu+2] [Cl]^2 reduces to: (K) (Ksp) = [CuCl2 ‾... 
chemistry
Find out: a) How many grams of lithium are required? b) How many grams of each product can be produced? 
Math
the rule is this: A prime can be written as a sum of two squares. I hope that helps 
com155
ok I got it now.. thank you very much!! 
com155
The role of education plays a big part in financial planning (PRESENT). It has worked a crucial part of becoming successful with your money (PRESENT PERFECT TENSE). It will help you in learning basic math skills in order to better your finances (FUTURE TENSE). The whole idea ... 
com155
Okay! I hope this is it. The role of education plays a big part in financial planning (PRESENT). It has worked a crucial part of becoming successful with your money (PAST). It will help you in learning basic math skills in order to better your finances (FUTURE TENSE). The ... 
com155
OK! I will try going over the site you sent me and try again.. Thanks a lot! 
com155
HOW ABOUT THIS? The role of education plays a big part in financial planning (PRESENT). It has been a crucial part of becoming successful with your money (PAST PREFECT TENSE). It will help you in learning basic math skills in order to better your finances (FUTURE TENSE). The ... 
com155
OH! Thank you! I did not know it said that. I am having trouble understanding it. thank you! So, does that mean I have to start all over? Did I at least get all the verbs right? 
com155
Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence. Mark each verb used in bold and, in parentheses, identify the specific tense used The role of education plays a big part in ... 
English 101
MARVELOUS 1. extraordinarily good; used especially as intensifiers 2. too improbable to admit of belief 3. being or having the character of a miracle UNCANNY of a strange nature; weird; mysterious Example That two people could be so alike was uncanny. 
com155
thank you 
com155
Yes! That is what I am trying to figure out. 
com155
Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence. Mark each verb used in bold and, in parentheses, identify the specific tense used. THIS IS WHAT I WROTE: The role of education... 
physics
thanks, I see where I messed up at... 
physics
The Cedar Bluff express KAT bus averages 15 mph for 20 minutes, and then 32 mph for 14 minutes. What was its average speed? (mph) 
physics
Suppose that you measured the moment of inertia of the system as I = 5.05 kgm2. Assume the diameter of the pulley around which you wrap the string is d = 2.5 cm. a) suppose the system is initially spinning at angular speed ωo = 2.05 rad/s. After you drop a cube of mass ... 
Calculus
i still did not understand. if u don't mind could you please explain it again and also the question asks for the intervals and the points. could you give the intervals and points for the the questions above in the questions .. Thanks a bunch :). 
Calculus
Find: (a) the interval(s) on which f is increasing, (b) the interval(s) on which f is decreasing, (c) the open interval(s) on which f is concave up, (d) the open interval(s) on which f is concave down, and (e) the Xcoordinate(s) of any/all inflection point(s). f(x)= (x^4)  (... 
calculus
A cone of radius r centimeters and height h centimeters is lowered point first in at a rate of 1 cm/s into a tall cylinder of radius R centimeters that is partially filled with water. How fast is the water level rising at instant the cone is completely submerged? 
Math
Solve: x'=x+y+2t y'=x+y2t 
physics
80cm=0.8m T=25/14=1.786...seconds v=(2pi*r)/T=2pi(0.8)/1.786...=2.815...m/s a=v^2/r=2.815...^2/0.8=9.904m/s^2, towards the centre along the radius vector of the circle 
math
The first angle of a triangle is 24 more than the second. The third angle is twice the first. Find the measure of the angle of the triangle. 
Physics Spring
A mass sitting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. 1.0 J of work is required to compress the spring by 0.12 m. If the mass is released from rest with the spring compressed, it experiences a maximum ... 
physics please help
The femur is a bone in the leg whose minimum crosssectional area is about 3.60 104 m2. A compressional force in excess of 6.90 104 N will fracture this bone. (a) Find the maximum stress that this bone can withstand. (b) What is the strain that exists under a maximumstress ... 
Flec
what is a prime factor? How do I find the prime factor? 
physics help
i don't get this either please help me thanks. 
physics please help me
i understand but how to i go about solving this that's what i need help in, if that assumption is made. 
physics please help me
A 5.00 kg ball (ball 1), moving to the right at a velocity of +4.00 m/s on a frictionless table, collides headon with a stationary 7.60 kg ball (ball 2). Find the final velocities of the balls if the collision is as specified below. (a) elastic collision ball 1 = .825 ball 2... 
physics please help me
The pole vault landing pad at an Olympic competition contains what is essentially a bag of air that compresses from its "resting" height of 1.1 m down to 0.1 m as the vaulter is slowed to a stop. (a) What is the time interval during which a vaulter who has just ... 
chemistry
0.45 
Calculus
P(x)= x^3+15x^248x+450, x>/3 is an approximation to the total profit (in thousands of dollars) from the sale of x hundred thousand tires. find the number of hundred thousands of tires that must be sold to maximize profit. 
Calculus
find the absolute extrema if they exist as well as where they occur f(x)= x1/x^2+3x+5 
Calculus
Find all extrema, inflection points, and asymptotes where applicable f(x)= 2x^312x^2+18x I got 0, 8 for extrema 2, 0 for I.P and I don't know how to find asymptotes 
Calculus
Find the indicated absolute extremum as well as all values of x where it occurs on the specified domain f(x)= x^2e^0.25x ; [3,10] 
Math please help!
x=speed of boat in still water. assuming the problem implies 26 miles each way. to figure this out, I wrote this out in simple miles per hour terms. Example: (hours/mile)*miles + (hours/mile)*miles = hours so: (1/(x+5))*26+(1/(x5))*26=10.6 x+5 represents the speed of the boat... 
chem need assistance
Write a balanced chemical reaction to show the reaction between ammonium and a chlorite? Is this correct? 2NH3 + CLO2 + H2O ⇒ NH4Cl + NH2O2 
chem
complete this reaction 2 NaNO3 + ht → 
chem
Complete the reaction? IF no reaction say so H2O C4H6O3 ====> H2O c) Cu ===== > H2O d) K2O=====> e) 2 NaNO3 + ht → 
HELPPPPP
so im done with everything except fro this question : A(n) 2.3 kg object moving with a speed of 8.6 m/s collides with a(n) 4 kg object moving with a velocity of 8.8 m/s in a direction39.0135◦ from the initial direction of motion mof the 2.3 kg object.What is the speed of... 
Chemistry
Determine the mass of zinc sulphide,ZnS which is produced when 6.2 g of zinc and 4.5 g of sulphur are reacted. This question is really confusing me, and I'm not sure where to start. I think I have to calculate the moles of each given reactant first in which case I have: ... 
Chemistry
Determine the mass of zinc sulphide,ZnS which is produced when 6.2 g of zinc and 4.5 g of sulphur are reacted. 
Chemistry
I'm not understanding. what do you mean figure the moles of H2O2 in 3.4 g of water? You get the same number of moles of water? I calculated: nH2O2 = 3.4g/34.02g/mol= 0.0999412 mol Water on the other hand has 18.02 mol sorry but I'm not understanding. I think for this ... 
algebra
two planes take off from an airport at the same time and head in opposite directions at 260 mph and 275 mph respectively. in how many hours will they be 1605 miles apart? 
chemistry
Suppose you put 50mL of water in the can instead of 100mL and heated it to 40 degrees instead of 20 degrees. In what ways, if any, would this afect the results of the experiment? What would happen if you used 200mL of water and heated it only 10 degrees? Can you think of any ... 
College Physics
A car starts from rest on a curve with a radius of 150 m and accelerates at 1.50 m/s^2. How many revolutions will the car have gone through when the magnitude of its total acceleration is 3.20 m/s^2 ? 
College Chem
How many liters of carbon dioxide at 20 oC and 750 torr are produced when one gallon of toluene is burned? Convert liters to milliliters and then to grams. can you convert mil to grams? 
Chemistry
1 gallon toluene = about 3,785 mL density = about 0.867 g/mL mass toluene = 3785 mL x 0.867 g/mL = 3282 grams. C7H8 + 9O2 ==> 7CO2 + 4H2O moles toluene = grams/molar mass = 3282/92 = about 36 moles. From the equation above, 1 mole C7H8 will produce 7 moles CO2; therefore, ... 
Chemistry
can't convert ml to grams 
Chemistry
How many liters of carbon dioxide at 20 oC and 750 torr are produced when one gallon of toluene is burned