Wednesday

July 23, 2014

July 23, 2014

Total # Posts: 6,187

**physics**

the acceleration is not right. you need to use this equation: Xf=Xi+Vi*t+(1/2)a*t^2 Xi=0,Vi=0,t=1.4,Xf=1,a=? 1=0+0(1.4)+(1/2)a(1.4^2) 1(2)= a(1.96) 2/1.96= a 1.0204 = a Then you follow the rest of the equation T = m(g+a)

**physics**

A block of mass 35 kg moves on the horizontal surface. If initially at rest whwat is the speed of the block after moving a distance of 6m when G=32?

**Trigonometric Substitution**

Trigonometric Substitution a. Explain why the substitution x = asin(Theta) guarantees that cos(Theta) is greater than or equal to 0 . b. What sort of restriction must we put on x and a so that the substitution x = asec(Theta)will guarantee that tan(Theta) is greater than or eq...

**algebra**

Describe in your own words how to solve a linear equation using the equality properties. Demonstrate the process with an example. Next, replace the equal sign in your example with an inequality by using the less than or greater than sign. Then solve the inequality.

**Spainish**

What is the correct answer to the question: ¿Qué haces los sábados?

**geometry**

Solve the following equation for x 3x + 23 = 7

**calculus ( related rates )**

a paper cup in the shape of a cone has a diameter of 10cm across the top, and is 8cm deep. if the cup is leaking out the bottom at 2pi cm^3/min, at what rate is thet area of the water surface ( only the top surface of the water) changing, when the cup has a the water depth of...

**Physical Science 2**

Given that iron has a density of 7.87 g/cm3, calculate the volumeof 100 g of iron and 50 g of iron

**Chemistry**

The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.500. If a trial's absorbance is measured to be 0.310 and its initial concentration of SCN– was 0.0010 M, the equilibrium concentratio...

**CIS 115**

There are three seating categories at a stadium. For a softball game, Class A # seats cost $15, Class B cost $12. and Class C seats cost $9. Design a modular # program that asks how many tickets for each class of seats were sold, and then # displays the amount of income genera...

**English**

Can you identify key qualities of drama and poetry which emphasize their performative qualities.

**Physics**

Two 0.33 kg blocks are attached to a 1.62m long string such that the lengths of the three string segments are equal. The ends of the string are attached to the ceiling at points separated by 1m. Each segment is 0.54m long. What is the tension in the horizontal segment. Answer ...

**financial management**

The HighT Company is a manufacturer of electronic products. The company is preparing a financial plan for the coming year and has the following independent projects under consideration: Project Initial investment ($ millions) Internal rate of return (%) A 220 20 B 380 11 C 300...

**English**

Can you help me summarize the major similarities and differences between the forms of the drama " Riders to The Sea",The poem " We Real Cool",and the short story "The Secret Life of Walter Mitty" and help me with at least one textual example of ea...

**English**

How is the more direct performative aspect of drama and/or poetry reflected in these forms? structure, language, technique, and style

**science**

Is an icing propane regulator concidered an endothermic reaction?

**algebra**

find the equation of the perpendicular line to y=1/2x+4 and passing through the point (1,-2) PLEASE HELP :)

**Physics**

A concave mirror is constructed so that a man at a distance of 26 from the mirror sees his image magnified 1.5 times. What is the radius of curvature of the mirror?

**Physics**

In the photoelectric effect, what happens to the stopping voltage when the light frequency is decreased?

**Chemestry**

Also please i'd really appreciate if someone could explain me also how to do it.. like from step 1 to end ~ Thanks.. @@..

**Chemestry**

The solubility product of copper(II) iodate, Cu(IO3)2, is 4 x 10-9 mol3 dm-9 at 25 °C. What is the solubility of copper(II) iodate in g dm-3? A 1.85 × 10-2 B 4.14 × 10-1 C 5.21 × 10-1 D 6.56 × 10

**physics (simple question...need help pls!)**

I Know, I did read it...But i am not provided with an answer choice of both. I am wondering, must the electron be moving in a straight line?

**physics (simple question...need help pls!)**

The magnetic field is generated by: A) an electron moving at constant speed in a straight line B) a proton moving in a circle C)a neutron moving in a circle D) none

**Physics**

Use Kirchhoff's junction theorem to explain why the total equivalent resistance of a circuit is reduced, not increased, by connecting a second resistor in parallel to another resistor.

**Physics**

By our sign conventions, if a battery is traversed in the actual direction of the current in it, what can you say about the sign of the change in electric potential (the battery’s terminal voltage)?

**Physics**

A platinum wire is connected to a battery.If the temperature increases, will the current in the wire increase, remain the same, or decrease?

**Physics**

To move 8.0 of charge from one electrode to the other, a 12- battery must do how much work?

**propability**

In basketball, Nicole makes 4 baskets for every 10 shots. If she takes 3 shots, what is the probability that exactly 2 of them will be baskets?

**Political Science**

Can anyone help me connect how the movie Robocop connects to Fascism?

**Geometry**

The surface area of acone with height 15 cm is 500π square cm. Find the radius of the cone. Round your answer to two decimal places.

**Socials Studies (URGENT)**

What does it mean by "influenced international relations"

**Socials Studies (URGENT)**

1. Why did Canada go to war in Korea and why was this war significant for Canada and the UN? Went to Korea to aid the south against the north from communism. (Don't know why it was significant. Any help?) 2. Describe two instances which Canada influenced international rela...

**GMAT Algebra (NO CALC)**

Thank you, my mistake on mixing up the answers when typing. I get number two now. But on number one, how do you get to =√(64*5+64*4) and then do you combine 64s for =√(64*(5+4)) thank you so much

**GMAT Algebra (NO CALC)**

It's been a few years since I've done algebra, and many more since we've been expected to do it without a calculator like the GMAT rules state. Please help me figure out these two problems without the use of a calculator. 1. __________________ √(16)(20) + (8)...

**science**

so it would most definitely have to be 5. microorganisms. final answer! lol

**science**

if removed from the life cycle, which of the following would have the greatest impact on the productivity of lawns. 1. robins 2. moles 3. toadstools 4. dandelions 5. microrganisms i think 4 b/c of the seedd that are easily blown away in the wind to regerminate

**Math 100p**

78 students 10 of them are freshmen what fraction of the class are freshman

**maths**

the price of meat increase from 110 to159 what percentage increase

**trig**

sec(90degrees -theta)

**Science**

A researcher is gathering data from four geographical areas designated: South=1;North=2; East=3; West=4. The geographical regions represents a. categorical data b. quantitative data c. directional data d. either quantitative or categorical data

**business**

180 Flip - a 180 degree boardslide varial kickflip 360 Flip – A 360 degree boardslide varial kickflip 50-50 – both trucks grinding on an object 5-0 – only the back truck grinding on an object Backside – turns or rotations in the direction your toes point t...

**chemistry**

A furnace that provides heat by burning methane gas must have the correct mixture of air and fuel to operate efficiently. What is the mole ratio of air to methane gas in the combustion of methane? Hint: Air is 20% oxygen.

**chemistry**

If the gas could took a hemispherical shape, what circular surface area would the gas cover? chemistry

**Chemistry**

phosgene an equilibrium reaction is the formation of phosgene an equilibrium reaction? how can you tell

**Pre-algebra**

Yes

**science**

IN SOLID LIQUID WHAT DO NOT MATTER

**science**

IN SOLID LIQUID WHAT DO NOT MATTER

**math**

factor the following trinomail w^18-9w^9y^5+14y^10

**physics**

A particle moves along the x axis. It is initially at the position 0.280 m, moving with velocity 0.080 m/s and acceleration -0.240 m/s2. Suppose it moves with constant acceleration for 3.10 s. (a) Find the position of the particle after this time. (b) Find its velocity at the ...

**geometry**

please help me?

**geometry**

how long are the congruent legs of isosceles triangle if its base and altitude to the base are 12cm and 8 cm respectively?

**math**

thanks

**math**

square root of 80?

**Calculus**

An isosceles triangle has perimeter 64m. Find the dimensions of this triangle that make its area a maximum

**chem**

what is the total mass of rn-222 remaining in an original 160g sample after 19.1 days? 1 2.5g 2 5.0 g 3 10g 4 20g how do you do this ?

**math**

Explain why the equation y=x squared can have two possible values of x for every value of y.

**math**

What would the future value of $6.5million dollars be after 5 years at 1.2% interest?

**Cost Analysis**

Does indirect costs often depend on some or all of the direct costs? How do we make that call.

**Physics**

i . imgur . com/Ki7wM.jpg

**Physics**

That's still not right but hopefully you can understand it. I wish it would just let me post a link to an image.

**Physics**

Figure: ---------______ -----___|------| F-->|-m-|--M---| ----|___|------| --------|______|

**Physics**

The two blocks in the figure, of mass m and M respectively, are not attached, but there is a coefficient of static friction u between them. The surface below the heavier block M is frictionless. What is the minimum force magnitude F required to keep the smaller block m from sl...

**Body Structure and Function**

The change in the number of olfactory neurons as we age increase the detection of warning smells

**physic**

A Carnot engine takes an amount of heat QH = 113 J from a high-temperature reservoir at temperature TH = 1170°C, and exhausts the remaining heat into a low-temperature reservoir at TL = 13.3°C. Find the amount of work that is obtained from this process

**physic**

Find the net change in entropy when 259 g of water at 0.0°C is added to 259 g of water at 97.5°C.

**Astronomy**

Which of the following developments was most directly responsible for the creation of rockets that were capable of going to the moon? A. gunpowder B. explosives C. single-stage rockets D. multistage rockets

**Physics**

I've tried a bunch, have no idea. Got the first part, no idea on the second one. A basketball, of mass m = 0.45 kg is dropped, from rest, from a stationary hellicopter at a high altitude. Use g = 9.81 N/kg. (a) If air resistance is negligible, using energy considerations a...

**CALCULUS HELP PLEASE!!**

Intergral from -2 to 2 (-2 is at the bottom of the integral sign and 2 is at the top) x^-2dx = -x^-1] (the bracket has a 2 at the top and -2 at the bottom) = -(2)^-1-(-(-2)^-1) = (-1/2)-(1/2) = -1 Is this true or false. I think it's false, but can someone explain to me why...

**Calculus**

Intergral from -2 to 2 (-2 is at the bottom of the integral sign and 2 is at the top) x^-2dx = -x^-1] (the bracket has a 2 at the top and -2 at the bottom) = -(2)^-1-(-(-2)^-1) = (-1/2)-(1/2 = -1 Is this true or false. I think it's false, but can someone explain to me why ...

**MATH**

How do you factor (x^2)+x+7?

**keyboarding and word processing**

When creating a 20-page newsletter in which you want different margin settings and other page formats within the multipage document, which one of the following Word features should you use?

**Chemistry**

The smaller molecules that make up complex carbohydrates are called A. sugars B. amino acids C. fatty acids D. nucleotides

**statistics**

A consumer group is testing a manufacturer’s claim that a new car model will travel at least 30 miles per gallon of gasoline. Assume that ��0:��=30 and ����:��<30, and that the population standard de...

**statistics**

what the error is: a) Grade Percent Frequency A 20% B 45% C 30% D 10% F 5% (b) The following table summarizes the grade breakdown on an exam in a small statistics class with 10 students. Grade Percent Frequency A 30% B 35% C 15% D 20% F 0%

**statistics**

Washington University banned smoking on the Hilltop campus starting in 2010. The student paper decides to do an opinion poll to see if current campus students/faculty/staff support the ban. Reporters are about to start asking a sample of 250 Hilltop people for their opinions. ...

**engineering**

How is bacteria used in genetic engineering?

**physics-nuclear reactors**

this sso guy is nuts if he thinks we should be able to do this...

**math**

according to what rule are the numbers arrange 8-9-7-10-12-20-28-29?

**logos**

Search "amazing logos" in a search engine like Google.

**Math**

Integrate[[E^(y/x),{y,0,1},{x,y,1}] Solution:0.859141 or .5*(e-1) I can't figure out what to do,and I tried substitution.

**Chemistry**

A quantity of sulfuric acid is added to 100. mL of water. The final volume of the solution is 111 mL and has a density of 1.14 g/mL. What mass of acid was added? Assume the density of the water is 1.00 g/mL.

**Poetry**

No thats my sister...we both suck at poety:( we are in the same class

**Poetry**

I need a seven long line iambic pentameter poem describing something. It can be anything. PLEASE HELP...I have no idea how to do this and my teacher will fail me. please please help

**Poetry**

Hang out with friends. I think I want my poem describing love. I came up with this one but its not in iambic pentameter form what so ever. and I have no clue how to change it Love, unconditional, unbreakable, unmistakable . A beating within your heart unstoppable. The realisti...

**chemistry**

Oh yeah! Thanks, so you would substitute: (10)(100) = (3)(x) to get: x = 333.33 mL, right?

**chemistry**

I need help with this problem: if you want to reduce the strength of 100 mL of 10 N NaOH to 3N, how much water would you need to add? Thanks in advance.

**Physics**

m = .150kg v = 40m/s Theta = 30 degrees Vh = 40*cos(30)>>>>Vh = 34.64m/s KE = (1/2)(.150kg)(34.64)^2>>>>KE = 90J

**Physics**

asdfadsf

**ECONOMICS**

Two price setting firms have the same price and marginal revenue functions but face different cost functions. These functions are provided below. P = 165 - 0.025Q MR = 165 - 0.05Q Firm 1: TC = 4,000 + 15Q Firm 2: TC = 3,000 + 22Q a. Assuming that both firms are profit-maximize...

**Biology**

What ethical issues might arise when a drug company funds trials of a new drug it has developed to treat a genetic disorder?

**Chemistry**

The alkanes mostly have dispersion forces acting among them,,so CH4 is dispersion forces as well as for c3h8 and c2h5 is ethyl which likean alkane..

**8th grade math**

3.5 X 10 ________ 7 x 10^-9

**physics**

You are driving your race car around a circular test track. Which would have a greater effect on the magnitude of your acceleration, doubling your speed or moving to a track with half the radius? Why

**Algebra**

What is the number of units in the distance from the origin to the point (-8,6) in a coordinate system?

**calculus**

Please help find the solution to the initial value problem dy/dx=(1+2cos^2 x)/y with(y>0), and y=1 when x=0. Thanks.

**Algebra**

find the LCM of 6y^6and 12y^8

**Sociology**

Which sociological perspective holds the view that people create their social worlds through interaction and manipulation of symbols?

**CRIMINOLOGY**

In what areas should the federal authorities not become involved?

**Chemistry**

An aqueous solution of an unknown compound boils at 101.00 degrees Celsius (760 torr). What is the molality, and freezing point of this solution?

**social studies**

where is antigua volcano

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