Thursday

February 23, 2017
Total # Posts: 2,196

**Simple interest**

Charlotte borrows $9000 over 5 years to buy a second hand car. The loan must be repaid over 5 years at 12% p.a. simple interest calculate the monthly repayment if the payments are spread equally over the 5 years.

*February 21, 2017*

**physics**

An alpha particle (charge = +2.0e) is sent at high speed toward a gold nucleus (charge = +79e). What is the electric force acting on the alpha particle when the alpha particle is 3.3 ? 10-14 m from the gold nucleus?

*February 13, 2017*

**Chemistry**

If you wanted to create a equimolar buffer using 1.0 mol of NaHS in 1.0L of water what acid would you need to add? how many moles of that acid do you need to add?

*February 11, 2017*

**unit 1 lesson 13 the human body**

does any one know the answers for the unit 1 lesson 13 quize for cathalena ward

*February 10, 2017*

**Social studies**

did u ever do it?

*January 31, 2017*

**MATHS**

The quadratic function f(x) has roots at x=4 and x=-2 and has value of 2 at x=0. Does f(x) have a minimum or maximum? Find the value of the /minimum/maximum value of f(x).

*January 31, 2017*

**physics**

A long straight vertical wire of diameter 2.0mm carries a steady current upwards. At 30mm from the centre of the wire, the magnetic field strength is 0.10mT. Sketch a graph to show the variation of magnetic field strength from the wire surface to a distance of 40mm from the ...

*January 26, 2017*

**physics**

An unstable nucleus with a mass of 18.0 ? 10-27 kg initially at rest disintegrates into three particles. One of the particles, of mass 5.0 ? 10-27 kg, moves along the positive y-axis with a speed of 9.0 ? 106 m/s. Another particle, of mass 7.4 ? 10-27 kg, moves along the ...

*January 24, 2017*

**physics**

Two cars (A and B) of mass 1.1 kg collide. Car A is initially moving at 18 m/s, and car B is initially moving in the opposite direction with a speed of 9 m/s. The two cars are moving along a straight line before and after the collision. (Enter the magnitudes.) If the two cars ...

*January 24, 2017*

**physics**

How much heat is absorbed by a 30g iron skillet when its temperature rises from 24oC to 93oC? Joules do i addition everything?

*January 24, 2017*

**physical science**

How much heat is absorbed by a 30g iron skillet when its temperature rises from 24oC to 93oC? Joules do i addition everything?

*January 24, 2017*

**Math**

How many 4/5-foot planks can be cut from a board which is 12 feet long?

*January 19, 2017*

**math**

If a jet flies at a speed of 600 km/h, how many meters does it fly in 10 seconds? There are 1000 meters in 1 km

*January 19, 2017*

**Math**

you guys are just a peacie of it spam omg you guys can get sewed and everything .l

*January 17, 2017*

**hypothesis**

Because it is just an idea that has to be proven to know that it is true.

*January 15, 2017*

**hypothesis**

Here is google definition for Hypothesis- a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

*January 15, 2017*

**Geography**

Search google there is many examples of link canals.

*January 15, 2017*

**geometry**

Look at the questions that were previously answered below I think they will help you solve this.

*January 15, 2017*

**Math- fractions**

Multiply both of the fractions to make the denominators the same. For example 2/3 *4/4 and 3/4 * 3/3.

*January 15, 2017*

**science**

Which one do you think will help protect the environment? I would discard 1 and 4.

*January 15, 2017*

**Calculas**

(x?¹-1) / x-1

*January 14, 2017*

**Calculas**

lim (x?¹-1)?x-1 as x approaches 1. I know the answer is -1 but I am not sure how to solve the numerator x?¹-1.

*January 14, 2017*

**Science**

well i was hoping someone could some how paste the questions in cause i cant seem to copy from the assessment

*January 12, 2017*

**Science**

lesson 9: energy and the environment unit test science 8 A Unit 4: Energy and the environment Please HELPPPPPP!!!!!!!

*January 12, 2017*

**calculus**

find the maximum and minimum value of the function f(x)= x-x^3 on the interval [-2,2] I also need help with this question What is the largest possible product of two negative number whose sum is 1?

*January 8, 2017*

**Physics**

5. If a wave has a wavelength of 20m and a speed of 100 m/s, what is the period of the oscillation? v = wavelength / period 100 = 20 / period 100*20 = periodperiod = 20 / 100 2000 s = period OR period = 20 / 100 period = 0.2 s I don't know which one is correct, please help?!

*January 2, 2017*

**Physics**

1. A rectangular coil 0.065 m by 0.080 m is positioned so that its cross-sectional area is perpendicular to the direction of a magnetic field. The coil has 66 turns and a total resistance of 7.6 ? and the field decreases at a rate of 2.5 T/s. What is the magnitude of the ...

*December 21, 2016*

**Physics -HELP**

1. A rectangular coil 0.065 m by 0.080 m is positioned so that its cross-sectional area is perpendicular to the direction of a magnetic field. The coil has 66 turns and a total resistance of 7.6 ? and the field decreases at a rate of 2.5 T/s. What is the magnitude of the ...

*December 21, 2016*

**Physics -HELP**

A rectangular coil 0.065 m by 0.080 m is positioned so that its cross-sectional area is perpendicular to the direction of a magnetic field. The coil has 66 turns and a total resistance of 7.6 ? and the field decreases at a rate of 2.5 T/s. What is the magnitude of the induced ...

*December 21, 2016*

**Physics -HELP**

Do we have to find EMF?

*December 21, 2016*

**Physics -HELP**

A coil with 337 turns of wire, a total resistance of 47 ?, and a cross-sectional area of 0.35 m2 is positioned with its plane perpendicular to the field of a powerful electromagnet. What average current is induced in the coil during the 0.30 s that the magnetic field drops ...

*December 21, 2016*

**Physics -HELP**

A coil with 337 turns of wire, a total resistance of 47 ?, and a cross-sectional area of 0.35 m2 is positioned with its plane perpendicular to the field of a powerful electromagnet. What average current is induced in the coil during the 0.30 s that the magnetic field drops ...

*December 21, 2016*

**math**

A bakery sells 5800 muffins in 2010. The bakery sells 7420 muffins in 2015. Write a linear model that represents the number y of muffins that the bakery sells x years after 2010

*December 21, 2016*

**math**

A bakery sells 5800 muffins in 2010. The bakery sells 7420 muffins in 2015. Write a linear model that represents the number y y of muffins that the bakery sells x x years after 2010

*December 21, 2016*

**Math**

no one chairs

*December 18, 2016*

**Math**

Given that the line x/a + y/b = 1 passes through ( 0 , 3 ) and ( 5 , 1 ), find the value of a and b

*December 18, 2016*

**Math**

Solve for x: e^4x-3 = 2e^2x1 ln2x+6) - ln(3x-1) = ln(2) Then, simply the radicals

*December 14, 2016*

**Math**

What power output will be provided for an amplifier having a gain of 12dB if the power input is 75W?

*December 14, 2016*

**literature**

In The Call of the Wild" which dog is sled-team leader after the death of Spitz?

*December 12, 2016*

**precalculus**

Given: r = 4/-2-costheta What type of conic does this represent? ________________________________________ Circle Ellipse Hyperbola Parabola

*December 11, 2016*

**Geometry**

15^2 + 15^2 = c^2 450 = c^2 square root 450 = 21.2

*December 7, 2016*

**Science Physics**

I don't understand how I would know what would happen if it collided or bounced, etc. How do I solve a question like this? Suppose the total momentum of two masses before collision is 100kg m/s. What is the total momentum of the two masses after they collide? 0 kg m/s 50 k...

*December 5, 2016*

**Physics**

(a) If the wavelength of an electron is 5.37 ? 10?7 m, how fast is it moving? (b) If the electron has a speed equal to 3.80 ? 106 m/s, what is its wavelength? What equation should I use?

*December 4, 2016*

**Chemistry Lab**

So I have a lab exam tomorrow and our instructor said that one of the questions would be as follows: Prepare 100mL of 0.03 M Copper Sulfate, beginning from copper sulfate pentahydrate. Calculate the exact molarity to 3 sig figs. Alright so I understand how to prepare 100mL of ...

*November 21, 2016*

**chemistry**

P4 + 6 Br2 -> 4PBr3 In a particular reaction, 20 grams of phosphorus P4, is combined with 50mL liquid bromine ( Density= 2.93 g/ml) 1) Calculate the mass of product in grams for each of the reactants 2) Limiting reagant and Mass Maximum mass of PBr3 so for 1) I converted ...

*November 7, 2016*

**math**

How many square feet of carpet will be needed to cover the kitchen and bedroom floors? 237.5 square feet 365 square feet 425 square feet 475 square feet

*October 18, 2016*

**Social Studies**

Why were Middle Colones more favorable to farmers than New England? Thanks in advance for any responses!

*October 16, 2016*

**Chemistry**

Net Ionic equation for 1. Iron(II) Iodide and Magnesium Acetate 2. Ammonium Phosphate and Cobalt(III) Chloride 3. Sodium Acetate and Potassium Chloride These are the only ones I have left on my HW and I can't seem to figure them out would appreciate some help.

*October 12, 2016*

**Math. please help**

-1/2 + 1/3 = ? Find common denominator,which is 6. (3/3)*(-1/2)+(1/3)*(2/2)= -3/6 + 2/6 = -1/6 Note: to keep fraction equal, you must multiply them by another fraction equal to one. Both 3/3 and 2/2 equals one.

*October 12, 2016*

**College Physics**

A 1300-kg car moving on a horizontal surface has speed v=65 km/h when it strikes a horizontal coield spring and is brought to rest in a distance of 3.0m

*October 5, 2016*

**english**

Culture is a big part as well environment hope it helps

*October 5, 2016*

**Reading/English**

Reread "The Night the Bed Fell" and "The Stolen Day." In a paragraph or two, compare and contrast the stories. Please help me.

*September 30, 2016*

**Accounting**

On September 1, 2011, Fast Track, Inc. was started with $30,000 invested by the owners as contributed capital. On September 30, 2011, the accounting records contained the following amounts: Accounts Payable $2,200 Dividends Declared and paid $2,300 Accounts Receivable $2,200 ...

*September 26, 2016*

**Physics**

A pilot wants to ﬂy from city A to city B, a distance of 394 km at an angle of 10.0 degrees west of north. The pilot heads directly toward city B, with an air speed of 203 km/h. After ﬂying for 1.0 hours, the pilot ﬁnds she is 17.5 km oﬀ course to ...

*September 26, 2016*

**Math**

Answers are D A C B CCA Students 8th

*September 22, 2016*

**Math**

the ratio of soccer ball to baseball is 12 to 15.if there is 48 soccer ball how many baseball are there

*September 20, 2016*

**physics**

A public transportation bus travels back and forth along a road, following the position-time graph over the time period shown below. There are five points labeled on the graph. What is the average speed and velocity (magnitude and direction) of the bus between point 1 and ...

*September 18, 2016*

**English**

What does this sentence mean from the Scarlet Letter? Yet the taste of the age, demanding whatever was elaborate in compositions of this kind, did not fail to extend its influence over our stern progenitors, who had cast behind them so many fashions which it might seem harder ...

*September 18, 2016*

**Sociology**

I did. Starting to believe it's Inequality. My text said that Marx believes that social stratification comes from unequal property relations or unequal access to the means of production.

*September 16, 2016*

**Sociology**

Marxism is a theory of history and social change that expresses which of the following as its central concern? A) Violence B) Feudalism C) Inequality D) Mass consumerism I'm thinking B but I'm not really sure.

*September 16, 2016*

**Physics Ap**

A flower pot falls from a windsill 30 meters above the sidewalk. How fast is it going when it hits the ground? How long does it take to reach the ground? How fast would it be going if it was thrown down at 8m/s instead?

*September 8, 2016*

**Physics**

A boat that can travel at 3.0 km/h in still water crosses a river with a current of 1.7 km/h. At what angle must the boat be pointed upstream to travel straight across the river?

*September 6, 2016*

**American Government**

Ms. Sue you fagg, if you're going to help other kids with something like this at least don't give them false answers

*August 21, 2016*

**Calculus AB**

If a sinusoidal function has a local maximum at (3,8) and the next local minimum at (7,-2), 1) What is the equation of a cosine function that has a graph characterized in the statement above 2) What is the equation of a sine function that has a graph characterized in the ...

*July 30, 2016*

**Vectors**

Show that the line with parametric equations x = 6 + 8t, y = −5 + t, z = 2 + 3t does not intersect the plane with equation 2x − y − 5z − 2 = 0.

*July 14, 2016*

**math**

True or False: The median must always be one of the numbers in the data set itself.

*June 26, 2016*

**chem chem**

hi does anyone know what the VSPER theory is

*June 16, 2016*

**algebra**

An amusement park charges $6 to enter, and $3 per game. If you paid a total of $18, how many games did you play?

*June 9, 2016*

**Chemistry**

How many moles are in 7.5x10^24 molecules of carbon dioxide? Grams?

*June 6, 2016*

**SOCIAL STUDIES**

Can you please, explain the split between the Shiites and the Sunnis.

*May 16, 2016*

**Geometry**

Oh lol thx :)

*May 14, 2016*

**Geometry**

700?

*May 14, 2016*

**Geometry**

What is the area of a regular pentagon with an apothem 14 inches long and a side 20 inches long? Round the answer to the nearest inch. Answer choices: 1400 in.^2 700 in.^2 175 in.^2 140 in.^2 Give work, not answer, please.

*May 14, 2016*

**Art**

war memorials honor those who fought and died for a nation. which of the following is not a reasons war memorials are important? A. Memorials honor the family of the dead. B. Memorials let the public experience wars reality. C. Memorials allow visitors to see war from a new ...

*May 6, 2016*

**Science**

How does the sun and wind help bioversty?

*May 4, 2016*

**Science**

If water temperature changes in favor of greater oxygen levels how do the population of the fish and wading bird population change in response to the new oxygen over time? I would think the fish population would increase and so would the birds (because the fish increase) but I...

*May 4, 2016*

**Absolute and relative change**

If gas prices are now $3.75 and they were up 10% from 6 months ago, how much were gas prices 6 months ago?

*April 24, 2016*

**Absolute and relative change**

You are charged $16.05 for a meal. Assume sales tax is 7%, what was the menu price for the meal?

*April 24, 2016*

**electricity**

A series RL circuit contains two resistors.The resistors are 60ohm and 30ohm.when calculating the circuit values, what is the total resistance?

*April 20, 2016*

**math**

at night, a 6ft man is walking towards a 8ft lamp post at a speed of 3ft/sec how fast is his shadow changing?

*April 19, 2016*

**math**

A roasted turkey is taken from an oven when its temperature has reached 185°F and is placed on a table in a room where the temperature is 76°F. (a) If the temperature of the turkey is 155°F after half an hour, what is its temperature after 45 min? (Round your ...

*April 18, 2016*

**math**

The population of the world was 7.1 billion in 2013, and the observed relative growth rate was 1.1% per year. (a) Estimate how long it takes the population to double. (Round your answer to two decimal places.) _______yr (b) Estimate how long it takes the population to triple...

*April 18, 2016*

**Math**

6x-20=y 3x-25=y

*April 14, 2016*

**grade 8 math**

3.50 x 28= $98

*April 5, 2016*

**grade 8 math**

$3.50 for a

*April 5, 2016*

**grade 8 math**

richard is a traveling service representative for his company. he earns about $3000 per month. he uses an ATM once a day during weekdays and once during the weekend. he is charged a transaction fee of $3.50 each time. a) how much does richard pay in debit fees? b) use your ...

*April 5, 2016*

**grade 8 math**

$12.5?? may you help me solve another question?

*April 5, 2016*

**grade 8 math**

elena spent a week at a customer's factory in a different city. she used her debit card 19 times. for 4 of the 19 purchase, she was charged a service fee of $0.50 each. she also withdrew money from an ATM 3 times. she was charged a transaction fee of $3.50 each time. how ...

*April 5, 2016*

**Chemistry**

How many moles are in 2.3 grams of oxygen gas.

*March 30, 2016*

**Algebra 2**

the gym charges 180$ for a yearly membership. there are currently 1000 members. for every 5$ increase the gym will lose 10 members. how much should the gym charge to maximize its revenue?

*March 11, 2016*

**health**

thanks

*March 8, 2016*

**health**

just a check would be nice, you don't have to tell me the answers

*March 8, 2016*

**health**

woah woah woah...chill... i just need someone to check my answers...

*March 8, 2016*

**health**

1. The skeletal system is created to ____________ internal organs. A) protect <------------------- B) maintain C) support D) hide 2. Your elbow and knee are examples of A) ligaments. B) joints. <-------------------- C) cartilage. D) angles. 3. The muscular system allows ...

*March 8, 2016*

**Calculus**

Find equation of two tangent lines to curve y=x^2 that intersect @ (2,-2). Need exact values.

*March 8, 2016*

**math**

The length of a football field is 120 yd. The width of the football field is 50 yd. Which is the correct unit of measurement to use when figuring out how much rope is needed to surround the field? A. yd B. yd2 C. yd3

*March 4, 2016*

**Chemistry lab**

Discuss three unavoidable sources of error in Part 1 (the synthesis of the crystals) of this experiment and identify the major factors that would explain a less- than-100% yield. Note: human error is not an acceptable answer. Was the alum not dry enough for impurities to give ...

*March 1, 2016*

**research methodology**

It is much of work and I doubt that somebody is willing to do the whole research for you. Well, not to get the bad quality essay, it is way better to turn to the professional writers and such as at Marvelous essay are.

*February 29, 2016*

**chemistry**

The standard internal energy change for a reaction can be symbolized as ΔU°rxn or ΔE°rxn. For the following reaction equations, calculate the energy change of the reaction at 25 °C and 1.00 bar. Sn(s) + 2Cl2(g) --> SnCl4(l) ΔH°rxn = -511.3 kJ/...

*February 28, 2016*