# Posts by james

Total # Posts: 2,499

Engineering science
a 50kg mass is suspended from a spring, causing it to extend by 30mm. calceolate the spring stiffness? The mass is then pulled down a distance of 90mm and released. calculate the frequency of the resulting motion, assuming that this is simple harmonic, calculate the velocity ...

Finance
Pretty Lady Cosmetic Products has an average production process time of 40 days. Finished foods are kept on hand for an average of 15 days before they are sold. Accounts receivable are outstanding an average of 35 days, and the firm receives 40 days of credit on its purchases ...

Physics
Why is 5*10^3 multiplied by a electron charge?

correction
15m/s^2

Physics
A small charge that has lost 5.0 X 10^3 electrons and has a mass of 2.0 x 10^-6 kg experiences an acceleration of 15ms^2 when placed at a point P in space. Determine the magnitude and direction of the electric field at P

math
sqrt(350^2+400^2)=531.5ft 350+400= 750ft 750-531.5= 218.5ft The trip is 218.5ft shorter if you walk diagonally.

physics
sqrt(10^2+10^2)= 14.14m The total displacement is 14m North East

algebra
B does not equal the others .04*3000=120 .4*30=12 .4*300=120 .3*400=120

Physics
I don't think so, we just started on parallel plates in school and he assigned this question for homework and i have no clue how I would get the final velocity from what was given.

Physics
It does not say in the question

Physics
Determine the final velocity of an alpha particle (3.2x10^-19) if it is placed in a 7.2x10^6 n/c uniform field. The mass of the alpha particle is 6.64x10^-27

MGT
What is a project stakeholder? What are some examples of project stakeholders?

R THESE THE RIGHT ANSWERS ?

Scientific Method
primitive

chemistry
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution containing 0.065 mol citric acid (H3A), 0.025 mol 8-hydroxyquinoline (HB), and 0.040 mol KOH. Consider just acid-base chemistry. Ignore ion pairing and activity ...

math
Thanks toriel you're the man

Physics
2.2

Finance
The Fridge-Air Company's preferred stock pays a dividend of \$4.50 per share annually. If the required rate of return on comparable quality preferred stocks is 14 percent, calculate the value of Fridge-Air's preferred stock. What fomula to use?

Math - Algebra
Ti'a rectangular gaden has perimeter of 20 meters. She wants its area to be at least 24 square metesr. Find the interval for the possible length of Tia's garden.

Math
A glass held 2/5 cup of water, Carlo poured out 3/8 cup, how much is left?

Chemistry
Did I ionize Mn2(CO3)3 correctly? Mn2(CO3)3 --> 2Mn^(3+) + 3CO3^(2-)

Math
At which points do the lines intersect 2x+y=8 y=-3(x-3) A. 0,8 B. 3,-2 C. 2,4 D. 1,6

Psycholohy
One way to measure the validity of a test would be to: you were testing for:

chemistry
What volume of ethanol must be diluted with water to prepare 315 mL of 0.620 M solution? The density of ethanol is given as 0.789 g/mL. Answer in units of mL

math 8th
Find the circumference of the given circle. Round to the nearest tenth. circle (1 point) 22.0 cm 38.5 cm 11.0 cm 42.8 cm

math
If Ѳ is in Quadrant II, and cos Ѳ=-3/4 , find an exact value for sin 2Ѳ.

algebra
write in expanded logarithmic form: ln (x y^3 z^7)

algebra
Solve: log x + log(x+15)=2

algebra
Solve: 7 ^(x+3) =519

math
Solve 40e^(0.6x) - 3=237

There are 5 questions, and if you go to CA, these should be right, 1. C 2. A 3. A 4. C 5. D

Espanol
Can I get some corrections? 1. ¿Qué estás haciendo? A. Estás sirviendo la cena. B. Estáis leyendo el texto. C. Me estoy levantando. D. No estás haciendo nada. C 2. ¿Entonces estás descansando? A. Sí, estás ...

math

math 8th
Find the measure of ∠s. angle s (1 point) 63° 153° 68° 148°

Chemistry
In the spectrum of a specific element, there is a line with a wavelength of 656 nm. Use the Rydberg equation to calculate the value of n for the higher energy Bohr orbit involved in the emission of this light. Assume the value for the lower energy orbit equals 2.

algebra
Which box-and-whisker plot shows the scores of ten students on a mathematics exam? 92, 76, 83, 97, 74, 81, 92, 91, 96, 87 (1 point) box and whisker plot box and whisker plot box and whisker plot box and whisker plot

Algebra
Rewrite the equation in Ax+By=C form. Use integers for A, B, and C. y-5=-5(x-2)

english
Think about the figurative language in this stanza. What is the speaker saying? (1 point) It is hard to find your way at night because it is dark. It is the middle of the night and she is hungry. People find life in being with others. People have to help each other with ...

algebra
Solve the following rational inequality. Write the solution in interval notation. Show the number line and breaking points or graph of the polynomial with the part of the graph that is the solution (x-4)(x+2)/(x-3)(x+5) ¡Ü 0

algebra
less than or equal to

algebra
Solve the following rational inequality. Write the solution in interval notation. Show the number line and breaking points or graph of the polynomial with the part of the graph that is the solution (x-4)(x+2)/(x-3)(x+5) ¡Ü0

algebra
write a fourth degree polynomial function with real coefficients that has -3,1/5, and 4+i as zeros and the y intercept of (0,5)

Algebra word problem
thanks Steve if I was to figure avg cost 3.6-7.2+4.493=.893 times 100 for a total of \$89.30 per bike??

Algebra word problem
J's bike has determined that when x hundred bikes are built, the average cost per bike is given by C(x)= 0.1x^2-1.2x+4.993, where C(x) is in hundreds of dollars. how many bikes should the shop build to minimize the average cost per bike?

math
J's bike has determined that when x hundred bikes are built, the average cost per bike is given by C(x)= 0.1x^2-1.2x+4.993, where C(x) is in hundreds of dollars. how many bikes should the shop build to minimize the average cost per bike?

georgia history
hich of the following was a cause of the Great Depression? (Choose all that apply.) (3 points) the Stock Market Crash of 1929 Prohibition Failed crops and drought A lack of demand for goods

Algebra
Keiko is a software saleswoman. Let represent her total pay (in dollars). Let represent the number of copies of History is Fun she sells. Suppose that and are related by the equation . Answer the questions below. Note that a change can be an increase or a decrease. For an ...

Physics.
A dike in Holland springs a leak through a hole of area 0.60cm2 at a depth of 1.4m below the water surface. How much force must a boy apply to the hole with his thumb to stop the leak? Express your answer to two significant figures and include the appropriate units.

Physics
Calculate the average force per nail when Sarah (following figure), who weighs 130 pounds, lies on a bed of nails and is supported by 600 nails. Express your answer using two significant figures.

Physics.
The top floor of a building is 40m above the basement. Calculate how much greater the water pressure is in the basement than on the top floor. Express your answer to two significant figures and include the appropriate units.

Physics.
Calculate the water pressure at the base of the Hoover Dam. The depth of water behind the dam is 220m . Express your answer to two significant figures and include the appropriate units.

Physics
Pressure = weight density × depth Calculate the water pressure at the bottom of the 50-m-high water tower shown in the photo. Express your answer to two significant figures and include the appropriate units

math
if one rhombus measures 62 what are the remaining angle

science
an object being pulled to earth by gravity will have the force of air pushing back opposite directions

language arts
rewrite each sentence, adding commas where needed. which i was researching skateboards i found an interesting old newspaper story?

language arts
Resilient people usually a. complain when they have bad luck b. bring good luck to others c. are able to deal with setback

math 8th
1. The following circle graph was published in the Cane County annual report. If there are 1,000 registered voters in Cane County, how many are 35–45 years old? circle graph (1 point) 150 voters

Physics
An ice puck of mass m revolves on an icy surface in a circle at speed v at the end of a horizontal string of length L. The tension in the string is T Find the mass of the puck when the length of the string is 2.2m , string tension is 5.0N , and the tangential speed of the puck...

Physics
An ice puck of mass m revolves on an icy surface in a circle at speed v at the end of a horizontal string of length L. The tension in the string is T Write the equation for centripetal force, and substitute the values T and L appropriately. Then with a bit of elementary ...

Physics
The diameter of the base of a tapered drinking cup is 6.6cm . The diameter of its mouth is 9.8cm . The path of the cup curves when you roll it on the top of a table. How much faster does the mouth move than the base? Express your answer using two significant figures.

Physics
Calculate the tension in a horizontal string that whirls a 1.9-kg toy in a circle of radius 2.3m when it moves at 2.8m/s on an icy surface. Express your answer to two significant figures and include the appropriate units. 1.9(2.8)^2 .. then divid by 2.3 I got 12.30 N , is this...

Physics
A Plane flies north at 215 km/h. A wind from the east blows at 69km/h. What is the plane's new velocity with respect to the ground in standard position

Chemistry
Suppose you tried to carry out a double replacement reaction by mixing equal voulumes of a solution that contains dissolved NAOH and a solution that contains dissolved NACL. WHat would you expect to happen when the two solutions were mixed? Expain?

finance
Linda Scales is now employed as the managing editor of a well-known business journal. Although she thoroughly enjoys her job and the people she works with, what she would really like to do is open a bookstore of her own. She would like to open her store in about eight years ...

PHYSC101
Hormones that regulate the development and functioning of reproductive organs are called ________ hormones.

life orientation

science
1.C 2.A 3.A 4.B 5.C 6.B 7.B 8.D 9.C 10.A 11.A 12.A 13.B 14.B 15.A 16.C 17.D 100%

Social Studies 10
Was conflict over the red River settlement inevitable?

Physics
The coefficient of static friction between the m = 3.20-kg crate and the 35.0° incline of the figure below is 0.260. What minimum force vector F must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?

math
80kmph

math algebra
3 times 90 plus 3 times 95

Math
Need help with this problem: Isolate the variable: -4(2x - 7) = -36

Math
Need help with a few: Perform the indicated operation. Write your answer in simplest form: 4|5 / 20|3

Math
if i think i got this you would divide 697.50/55= which gives 12.68 an hour

Biochemstry
I got to that part where to find the moles of KH2PO4 but why base/ acid would equal the same. this is how i went about it then i got stuck 11.7 g of KH2PO4/136.08g/mol=.085 mol of KH2PO4 then to find M: 500 ml/1000ml=.5L .085/.5=17 M KH2PO4 then o lost myself

Biochemstry
1. A buffer was prepared by dissolving 11.7 g of KH2PO4 in 400 mL of water, and with the addition of concentrated solution of KOH the pH was adjusted to 7.10. The volume was then adjusted to 500 mL. What are the [PO43-], [HPO42-], [H2PO41-], and [H3PO4]? Use pKa values of 2.12...

physics
A block weighing 71.5 N rests on a plane inclined at 24.1° to the horizontal. The coefficient of the static and kinetic frictions are 0.26 and 0.13 respectively. What is the minimum magnitude of the force F, parallel to the plane, that will prevent the block from slipping...

Physics
What would be the answers to A and B?

Physics
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 21.0° below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a constant acceleration ...

Science
Which statement best describes the composition of magma?

physics
1 An object is thrown upward from the edge of a tall building with a velocity of 10 m/s. Where will the object be 3 s after it is thrown? Take g=10ms−2 15 m above the top of the building 30 m below the top of the building 15 m below the top of the building 30 m above ...

Physics
An electron with speed 2.35×107m/s is traveling parallel to a uniform electric field of magnitude 1.16×104N/C . How far will the electron travel before it stops? A=0.135m How much time will elapse before it returns to its starting point? I solved for the time it ...

Yea what did you get on the test or quick check?

finance
Mary Watson is 24 years old and single, lives in an apartment, and has no dependents. Last year she earned \$45,000 as a sales assistant for Focused Business Analytics: \$3,910 of her wages was withheld for federal income taxes. In addition, she had interest income of \$142. ...

Science
thanks

Science
thanks

Science
gg

Science
d because I don't know how to spell

American History
Force

Ghana National Lotto game
I want to know the nexy ghana lotto drawn

Science
it's C

chemistry
53.6 c

physics
If the total positive charge is Q = 1.62×10−6C , what is the magnitude of the electric field caused by this charge at point P, a distance d = 1.53m from the charge? (Figure 1) Enter your answer numerically in newtons per coulomb.

physics
What is the magnitude of the electric field a distance 3.0mm from an electron? Express your answer to two significant figures and include the appropriate units

physics
Two small charged balls have a repulsive force of 0.20N when they are separated by a distance of 0.90m . The balls are moved closer together, until the repulsive force is 0.58N . How far apart are they now? Express your answer to two significant figures and include the ...

physics
Three charges are fixed in the x−y plane as follows: 1.5nC at the origin (0, 0); 2.6nC at (0.65m , 0); –1.8nC nC at (0, 1.50m ). Find the force acting on the charge at the origin. Express your answers using two significant figures. Enter the x and y components of ...

physics
Three charges are fixed in the x−y plane as follows: 1.7nC at the origin (0, 0); 2.3nC at (0.60m , 0); –2.0nC at (0, 1.20m ). Find the force acting on the negative charge. Express your answer using two significant figures. Enter the x and y components of the force ...