Friday

April 18, 2014

April 18, 2014

Total # Posts: 259

**Physics**

a carton of eggs sits on the horizontal seat of a car as the car rounds a 26 meter radius bend at 16.5m/s. what is the minimum coefficient of friction that must exist between the carton and the seat if the eggs are not to slip?

**Physics**

a carton of eggs sits on the horizontal seat of a car as the car rounds a 26 meter radius bend at 16.5m/s. what is the minimum coefficient of friction that must exist between the carton and the seat if the eggs are not to slip?

**math**

a vector has a magnitude of 18.3 cm and a direction of 38 degrees. find the magnitude of its vertical and horizontal components to the nearest tenth.

**Geometry**

In the accompanying diagram, ABC and AB are congruent to BC. If the coordinates of C are (2,3) and the coordinates of B are (0,0), find the coordinates of A.

**Chemistry**

how do you compensate for coefficents while using a BCA chart? I know that you have to while using an ICE chart by multiplying by 2 when the coefficient is 2 etc, so thats why I was wondering...

**earth**

How many minutes does it take for light from the sun to reach the earth?

**Algebra 1**

To train for a race, Will begins by jogging 11 minutes one day per week. He increases his jogging time by 5 minutes each week. Write the general term of this arithmetic sequence, and find how many whole weeks it takes for him to reach a jogging time of one hour

**Algebra 1**

Evaluate the given binomial coefficient ( 8 ) 4

**Alegbra 1**

The function A = A0e-0.01386x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 500 pounds of the material are initially put into the vault, how many pounds ...

**Algebra**

Solve the problem. A salesperson gets a commission of $600 for the first $10,000 of sales, and then $300 for each additional $10,000 or partial of sales. Let S(x) represent the commission on x dollars of sales. Find the value of S(45,000)

**Algebra 1**

Larry has $2600 to invest and needs $3000 in 11 years. What annual rate of return will he need to get in order to accomplish his goal, if interest is compounded continuously?

**Algebra 1**

Use Cramer's rule to solve the system. -2x - 2y = -16 2x + 3y = 23

**Algebra 1-Matrix**

In a certain county the proportion of voters in each age group registerd as Republicans and Democrats or Indpendence is given by the following matrix which is called A. 18-30 31-50 Over50 Republican 0.40 0.30 0.70 Democrat 0.30 0.60 0.25 Indpendent 0.30 0.10 0.05 The distubuti...

**math**

factor y^2-81 (y+9)(y-9) have i factored it correct?

**Math**

Solve by using the multiplication principle -2x> 1 over 9 I have tried this problem and can get no where with it can someone please help me????

**College Algebra**

f(x)=3.1ã(x+19 1.Decribe the graph be obtained using transformations of the square root function. First, vertically stretch the graph of f (x) = by the factor 3.1; then shift the results up 19 units. 2.Determine how to tell the model describes the actual height of...

**English1**

Underline the correct pronoun of each pair in parentheses. 1. Women (who, whom) raise families do as much work at home as at their jobs. Whom 2. In North America society, it is still mainly women (who, whom) cook dinner, clean the house, check the children’s homework, rea...

**English 1**

Underline the correct pronoun of each pair in parentheses. 1. Women (who, whom) raise families do as much work at home as at their jobs. whom 2. In North America society, it is still mainly women (who, whom) cook dinner, clean the house, check the children’s homework, rea...

**English 1**

Underline the correct pronoun in parentheses. 1. Many so-called Founding Fathers are famous one or two of (his, his or her, their) accomplishments, but anyone who knows (his, his or her, their) history knows that Franklin is known for many things, including (his, her, his or h...

**English 1**

Underline the correct pronoun of each pair in parentheses. 1. Women (who, whom) raise families do as much work at home as at their jobs. Whom 2. In North America society, it is still mainly women (who, whom) cook dinner, clean the house, check the children’s homework, rea...

**English 1**

Combine each set of sentences into one sentences so that it contains two independent clauses. Use a semicolon correctly between the two clauses. 1. Tesla was born in what is now Croatia and studied at the Technical University at Graz, Austria. He excelled in physics, mechanica...

**English 1**

1. Many so-called Founding Fathers are famous one or two of (his, his or her, their) accomplishments, but anyone who knows (his, his or her, their) history knows that Franklin is known for many things, including (his, her, his or her, their) inventions. their, his or her, thei...

**Humanities **

how does humanities differ from Middle Ages to contemporary times.

**Physics**

162.533N

**Social Studies**

What are 6 significant events important to Americans that occurred during World War II?

**physics**

Henry drives off a 200m high cliff at 132m/s.How far out,how far down,and how far all together did he travel in 2.6seconds

**physical science**

a 2.0 kg rock sits on the edge of a cliff 12m above the beach. The rock falls off the cliff. How much kinetic energy will it have just before it hits the beach?

**cmo155**

Students are often confused about the use of the words good and well in their writing. Write a 100-word passage to Susan Anker, the author of the course’s textbook, in which you describe five details from her book that are good and five details about the book that are wr...

**chem**

Which has highest boiling point? H20, H2S, H2Se, H2Te i know its H20, but why? is it because its dipole dipole? does it have to do with electronegative, or polarity?

**spanish**

Look at your conjugations yo- pienso tu- piensas el/ella/ud.- piensa nosotros- pensamos ellos(as)/uds.- piensan Tu would be piensas

**Math**

When would you make a list to sove a problem?

**us history**

where can i go to read a text book if i forgot it at school

**math**

figured it out on my own thnx

**math**

find a 9 digit # that fits. the first3 #'s equal 1/3 of the last 3. The middle 3 #'s are the result of subtracting the first 3 from the last 3. All the digits from 1-9 are used only once. What is the number

**Science**

Easy! Metabolism is the rate of how fast your food digests

**History 1301**

READ YOUR BOOK!!!

**Environmental Science**

Hi Had a look at the sites, couldn't find any help. Do you know about IPCC? Cheers Brad

**Environmental Science**

Hi does anyone know how to calculate the UN's de facto temperature target using max co2 relative to 2008 that can be in the atmpsphere to the nearest Gtc? please

**physics**

A bowling ball weighing 71.2 is attached to the ceiling by a 3.90 rope. The ball is pulled to one side and released; it then swings back and forth like a pendulum. As the rope swings through its lowest point, the speed of the bowling ball is measured at 4.20 .

**science**

a balloon contains 30.0 L of helium gas at 103 kPa. What is the volume of the helium when the balloon rises to an altitude where the pressure is only 25.0 kPa?

**math**

From the information you've given, the only thing i can come up with is that the animals cost one dollar each since it's 100 dollars for 100 animals

**physics **

when you connect an unknown resistor across the terminals of a 1.50 V AAA battery having a negligible internal resistance, you measure a current of 18.0 mA flowing through it .A)what is the resistance of the resistor. B) if you now place the resistor across the terminals of a ...

**physics **

a 40.0 ohm resistor and a 90.0 ohm resistor are connected in parallel, and the combination is connected across a 120 V dc line. A)what is the resistance of the parallel combination. B)what is the total current through the parallel combination. C)what is the current through eac...

**physics**

a piece of wire has a resistance of R , it is cut into three pieces of equal length,and the pieces are twisted together parallel to each other. what is the resistance of the resulting wire in terms of R

**physics **

a 500.0 ohm resistor is connected in a series with a capacitor.what must be the capacitance of the capacitor to produce a time constant of 2.00 s

**physics **

a 1.5 kg box moves back and forth on a horizontal frictionless surface between two different springs. the box is initially pressed against the stronger spring compressing it 4.0 cm , and then is released from rest,A) by how much will the box compress the weaker spring,B) what ...

**chemistry**

what is the molar concentration of an aqueous NaOH solution when 45.0 grams are dissolved in water to make 100mL of solution

**chemistry**

Write a net equation for the reaction between aqueous solutions of Na2HPO4 and H2CO3.

**Algebra**

Without writing them all out, what is the number of subsets of set A = {tongue, ear, mouth, eye, nose, cheek, forehead, neck, shoulder}?

**physics**

Bumpers on cars are not of much use in a collision. To see why, calculate the average force a bumper would have to exert if it brought a 1200 kg car (a so-called "compact" model) to a rest in 15 cm when the car had an initial speed of 2 m/s (about 4.5 mph). Bumpers ...

**Physical Chemistry**

For part A, I'm plugging into the Arrhenius equation, ignoring A, and then dividing the 2 rates for each activation energy. I'm getting 1.027 for my particular set of numbers (Ea = 120 & 56) @ 293K. This isn't correct though.

**geometry**

What is the volume of a cone with a radius of 3 and a height of 19?

**trig**

how do you simplify "[sin(x)+tan(x)]/[1+sec(X)]"

**Physics**

An arrow is shot from the top of a building (height of 30 meters). The arrow travels 100 meters in the horizontal direction from the base of the building to the point where it hits the ground in 4 seconds. Find the angle of release, actual velocity at release, and maximum heig...

**physics**

Also, I found horizontal velocity = 25m/s, but I don't know where to go from there.

**physics**

An arrow is shot from the top of a building (height of 30 meters). The arrow travels 100 meters in the horizontal direction from the base of the building to the point where it hits the ground in 4 seconds. Find the angle of release, actual velocity at release, and maximum heig...

**Chemistry**

5,17

**survey math**

11110 base 2 = (?) base 10

**Math**

What do you mean?

**Math**

Solve each literal equation for the indicated variable 2x-3y=4 for x The answer is suppose to be x=3/2y+2 I don't understand how you do this problem?

**Math**

Solve each literal equation for the indicated variable. 4x-5y=10 for y (the answer is y=4/5x-2) How do you solve this?

**Physics II**

A block begins to slide down a ramp after being elevated to an angle of 55 degrees. What is the coefficient of static friction?

**10th grade english**

how the tone and purpose of each essay is different?

**10th grade english**

Write an essay comparing Baldwin's account of the Titanic with Rosenthal's account of his visit to Auschwitz.In your paragraph, explain how the tone and purpose of each essay is different. Support your argument with at least one example from each essay.

**calculus**

find the general solution x^2-2(e^y)dy/dx = y^3+e(x^2) iam getting the y^3 dx when i do seperation of variables how do i deal with this.

**calculus**

find the general solution x^2-2(e^y)dy/dx = y^3+e(x^2) iam getting the y^3 dx when i do seperation of variables how do i deal with this.

**math**

I'm thinking of TWO numbers between 1 and 4 and so are you, what are the odds that we will have ATLEAST 1 number in common?

**7th grade science**

heterozygous dominant

**7th grade science**

dominant

**Calc**

Express the integral as a limit of Riemann sums. Do not evaluate the limit. ∫_1^3 x/(2+x^5) Ans: lim(n→∞)∑_(i=1)^n ?

**spanish 2**

doblar- to turn conducir- to drive derecho-right izquierdo-left la esquina- corner la calle- street el coche/carro-car la ciudad- city el pueblo- town pasar-to pass parar- to stop el cinturon de seguridad- seatbelt la tienda-store el supermercado- supermarket la iglesia- churc...

**math**

add 5/4x and 1/8x then u get 11/8=11/8+x subtract 11/8 to the other side which leaves 0=x

**Economics**

Suppose that a movie theater owner faces the demand curve given by P=10-.001Q where P is the price of a ticket in dollars and Q is the number of tickets sold per week. Suppose that all the cost associated with the theater other than film costs do not vary with the number of ti...

**spanish**

despues de las clases= after the classes me gusta= i like

**math**

how do use approximation to tell which fraction is greater

**law ethics in medicine**

I work in a hospital and have to be trained in HIPAA. Every employee in a hospital that has access to patient info has to be trained since HIPAA has to do with patient confidentiality

**Creative Writing**

you want something thats going to grab the readers attention. That the point of it. Think of a sentence that defines your topic and grabs my attention

**Geography**

haha colten wrong answer

**physics**

thanks! I forgot the formula >.<

**physics**

How does one go about solving this? A skateboard rider starts from rest and accelerates at a constant +.50 m/s^2 for 8.4s. What is the riders displacement?

**Calculus**

Basically its x+3=3x-5 so subtract x from 3 which gives u 2x then add 5 to the other 3 to balance it out which leaves u 2x=8. Divide each side by 2 and ur g is 4

**Physiology**

the mechanisms responsible for triggering cardiac hypertrophy are still a mystery. Hypothesize about possible signals and the steps that might be involved to cause postprandial cardiac hypertrophy in pythons.

**Physiology**

The amount of DNA (measured in ng per mg ventricle) decreased. One nucleus is present in each vertebrate myocardial cell (each cell is mononucleated). Explain how it is possible that a decrease in mass-specific DNA concentration indicates growth of ventricular tissue.

**Physiology**

Of what physiological advantage would increased stroke volume (and its related effect on cardiac output) be to an animal that just ate a meal?

**Math**

I need to find the vertex and make a graph using quadratics. y=xsquared+11x+10

**chemistry**

i just have a question about le chatelier's principle lets say you have: A(g) + B(s) --> C(g) + D(g) does adding more of B which is a solid shift it to the right? or will it have no effect because it is a solid? thanks

**To: Reiny**

I don't understand how there would be 48 cards left if you took out 3 cards, wouldn't you have 49 cards?

**MATH**

what is the probability of getting 3 of a kind in poker? 3 of a kind is: Any three cards of the same rank with two other different cards. I know the answer it suppose to be 54912/2598960 But how do you get that?

**MATH**

what is the probability of getting a royal flush in poker? I realize it is 4/C(52,5), but what are the combinations for the numerator?

**polymers**

is polymethylpentene monomer's toxic?

**Polymers**

What is the molecular formula for polymethylpentene?

**Polymers**

I have tried looking at those sites before, but it still doesn't mention what I'm looking for.

**Polymers**

Is polymethylpentene flammable? Does this chemical effect our health in anyway?

**CHEMISTRY: polymers**

Polymethylpentene are there any safety concerns, toxicity concerns about the polymer? any environmently concerns? is the monomer toxic, is the polymer toxic?

**MATH:Solving with 3 variables**

03p-0.25r-03q=0 0.8p-0.6r-0.05q=0 0.9p-0.15r-0.65q=0 I don't know if this help but i think p+q=1.

**scientific notation**

Express the answer in scientific notation to two decimals unless requested otherwise. A company produced 2,600,000 small appliances in one year and made a profit of $6,690,000. What was the profit on each appliance?

**MATH!!!**

If the odds in favour of Neil beating Joe in a checker game are 5 to 4. What is the probability that Joe will win an upset victory in a best-of-five checker tournment?

**Chemistry**

Why are carboxylic acids and phenols acidic?

**Science**

because life's organisms also live in water and everything has to survive with water in order that there blood may flow, the cells may live, and things function

**Physics**

A tsunami, a great ocean wave, travels a distance of 7.2x10^6m in 2.88x10^4 what is the average speed of tsunami?

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