Sunday

April 19, 2015

April 19, 2015

Total # Posts: 80,347

**physics**

force=qvXB, right?
*February 20, 2015*

**physics**

A 25,000 kg rocket ship near the surface of the Earth accelerates upwards due to a constant 1.25 MN of thrust from its engine. A simple pendulum on the ship is observed to complete 100 full swings in 75.0 s. What is the length of the string? 1. For a simple pendulum: T = 2&#...
*February 20, 2015*

**math**

you mean: if a sing is 2.5 in height and.2.5. in width will the area of the sign be greater than or less than 2.5 square feet Search Results Questions on Word Proble
*February 20, 2015*

**Probability**

part-2 ans:= 1/3
*February 20, 2015*

**math**

I'm confused can you please show me how to work it out on paper. Thank you.
*February 20, 2015*

**math**

A pyramid has a height of 5 in. and a surface area of 90 in ^2. Find the surface area of a similar pyramid with a height of 10 in. Round to the nearest tenth, if necessary. A.360 in. ^2 B.180 in. ^2 C.22.5 in. ^2 D.3.6 in. ^2 I think the answer is A but I don't know how to...
*February 20, 2015*

**Math**

Many parents do say Thank you. The math is difficult most days. This home on the other side of the screen does say," Thank you kindly. A Family,
*February 19, 2015*

**Math**

Please help me with the question that I posted before this one. Thank you.
*February 19, 2015*

**Math**

A rectangular prism has a width of 92 ft and a volume of 240 ft^3. Find the volume of a similar prism with a width of 23 ft. Round to the nearest tenth, it necessary. I know the answer is 3.8 feet because I got it wrong. But why is that the answer. If you cab please help me ...
*February 19, 2015*

**Biology**

Which of the following solutions bathing a red blood cell would be considered isotonic? Which of the following solutions bathing a red blood cell would be considered isotonic? a solution containing 300 mM NaCl a solution containing 150 mM glucose a solution containing 400 mOsm...
*February 19, 2015*

**Math**

840 stickers were given to 42 children. ⅔ of the children were boys, and each of them received the same number of stickers. Each girl received twice as many stickers as each boy. How many stickers did each girl receive? Explain how you got your answer. Sorry I posted ...
*February 19, 2015*

**MAth**

840 stickers were given to 42 children. ⅔ of the children were boys, and each of them received the same number of stickers. Each girl received twice as many stickers as each boy. How many stickers did each girl receive? Explain how you got your answer.
*February 19, 2015*

**Finance**

You have been living in the house you bought 6 years ago for $250,000. At that time, you took out a loan for 80% of the house at a fixed rate 25-year loan at an annual stated rate of 9.5%. You have just paid off the 72th monthly payment. Interest rates have meanwhile dropped ...
*February 19, 2015*

**Chemistry**

A 100.0 g sample of ice at -15°C is heated until it is converted to water vapour at 120.0°C. Calculate the total energy change.
*February 19, 2015*

**Finance**

You are interested in a new Ford Taurus. After visiting your Ford dealer, doing your research on the best leases available, you have three options. (i) Purchase the car for cash and receive a $1,900 cash rebate from Dealer A. The price of the car is $19,000. (ii) Lease the car...
*February 19, 2015*

**physics **

You are a pirate working for Dread Pirate Roberts. You are in charge of a cannon that exerts a force 20000 N on a cannon ball while the ball is in the barrel of the cannon. The length of the cannon barrel is 1.88 m and the cannon is aimed at a 44◦ angle from the ground. ...
*February 19, 2015*

**math**

A cylinder is rolled three complete revolutions to create a rectangular shape 32 inches long and 12 inches wide. Write an expression for the area of the rectangle in terms of the diameter of the cylinder. Show how you could use this expression to find a formula for the surface...
*February 19, 2015*

**Finance**

Ok thanks for your help
*February 19, 2015*

**Finance**

To which option does the 4% interest rate go....all or the last two?
*February 19, 2015*

**Finance**

What is the net cost today of the cheapest option?
*February 19, 2015*

**Finance**

You are interested in a new Ford Taurus. After visiting your Ford dealer, doing your research on the best leases available, you have three options. (i) Purchase the car for cash and receive a $1,900 cash rebate from Dealer A. The price of the car is $19,000. (ii) Lease the car...
*February 19, 2015*

**Finance**

You have been living in the house you bought 6 years ago for $250,000. At that time, you took out a loan for 80% of the house at a fixed rate 25-year loan at an annual stated rate of 9.5%. You have just paid off the 72th monthly payment. Interest rates have meanwhile dropped ...
*February 19, 2015*

**Physics**

A wheel 32.6 cm in diameter accelerates uniformly from 247 rpm to 378 rpm in 6.54 s. How far will a point on the edge of the wheel have traveled in this time
*February 19, 2015*

**Math **

If Javier bought 48 sports cards and 3/8 are baseball cards. How many are baseball cards
*February 19, 2015*

**physics**

You begin pushing the car forward from rest. Assume that your car has a mass of 809 kg. Neglecting friction, how long will it take you to push your car up to a speed of 3.93 m/s on a level surface if you exert a constant force of 218 N on it?
*February 19, 2015*

**Government**

Which amendment is the most under used? Why?
*February 19, 2015*

**math**

If 3000 dollars is invested in a bank account at an interest rate of 9 per cent per year, find the amount in the bank after 5 years if interest is compounded annually
*February 19, 2015*

**science**

I mean is the answer B
*February 19, 2015*

**science **

this muscle helps to transport blood to and from the heart A. smooth muscle B. cardiac muscle C. skeletal muscle D. involuntary muscle. Is it D
*February 19, 2015*

**Math**

Humans usually have 20 baby teeth which are replaced by 32 adult teeth Raul said he has lost 6/20 of his baby teeth. Write two fraction equivalent to this number explain how you came up with the fraction
*February 19, 2015*

**thete**

A sample of beach sand contains sand particles of different colors, small pebbles, and also shells. Each component contains different metals and minerals. The pebbles and shells can easily be separated from the sand. Which term or terms could be used to describe this sample of...
*February 19, 2015*

**Art**

Yea it is D
*February 19, 2015*

**organic chemistry**

nj
*February 19, 2015*

**ALGEBRA**

thanks
*February 19, 2015*

**Geometry**

You make a scale drawing of a tree using the scale 5 in. = 27f ft. If the tree is 67.5 ft. tall, how tall is the scale drawing
*February 19, 2015*

**Geometry II**

I'm working on it; just wasn't thinking.
*February 19, 2015*

**Geometry II**

What? How?
*February 19, 2015*

**Geometry II**

A conveyor belt carries supplies from the first floor to the second floor, which is 12 feet higher. The belt makes a 60° angle with the ground. How far do the supplies travel from one end of the conveyor belt to the other? Round your answer to the nearest foot. 21 ft 7 ft ...
*February 19, 2015*

**Calculus**

On planet Calculi, acceleration due to gravity is -20 ft/sec^2. A ball is thrown upward with an initial velocity of 40ft/sec from an initial height of 50. a) Write the equation for the height of the ball, s(t), at time t. b) Find the velocity when the ball hits the ground. c) ...
*February 19, 2015*

**Science**

3 D the two exposed sides of the magnet have similar poles.
*February 19, 2015*

**Science**

Sorry. you didn't help
*February 19, 2015*

**Science**

what did made on this
*February 19, 2015*

**chemistry**

An aqueous solution at 25 °C is 10.0% HNO3 by mass and has a density of 1.051 g/mL. What is the pH?
*February 19, 2015*

**Chemistry**

a. 2.1*10^-7 b.4.85*106-32 these are correct
*February 19, 2015*

**Chemistry**

The above answer is wrong.
*February 19, 2015*

**Chemistry**

a. 1.6 b.7.8*10^-6
*February 19, 2015*

**physics**

The engine of a racing car of mass m delivers a constant power P at full throttle. Assuming that the friction drag force on the car is proportional to the velocity: Fdrag = -cv where c is a positive constant.What maximum speed can be attained by the car on level ground?
*February 19, 2015*

**physics**

The engine of a racing car of mass m delivers a constant power P at full throttle. Assuming that the friction drag force on the car is proportional to the velocity: Fdrag = -cv where c is a positive constant.What maximum speed can be attained by the car on level ground?
*February 19, 2015*

**Math**

I made graphs and th enext step is to create equations... Write the equation of each cycle in the form y=sin(bx+c). What is the Period and Phase Shift for the ophysical, emotional, and intellectual cycles? Feb. 13th, 2015 is at the origin. I dont' exactly get what a period...
*February 18, 2015*

**math**

The principal ordered four pizzas for the twelve students of the month. If each pizza has 8 pieces, what is the ratio of pieces of pizza to students of the month? Reduce your answer to lowest terms.
*February 18, 2015*

**Math**

How you know that 15/30 is greater than 1/3 but less 2/3
*February 18, 2015*

**Math-Biorhythms**

Write the equation of each cycle in the form y=sin(bx+c). What is the Period and Phase Shift for the ophysical, emotional, and intellectual cycles? Feb. 13th, 2015 is at the origin. I dont' exactly get what a period is and where you get the b and c values. Any help would ...
*February 18, 2015*

**chemistry**

Consider a solution containing 0.47 M HOCl and 0.67 M NaOCl for the next two questions. The Ka for HOCl = 3.5E-8. What is the pH of this solution? Now calculate the pH of this solution after 0.15 mol of NaOH is added to 1.00 L of the solution. Assume that the volume does not ...
*February 18, 2015*

**Quick chemistry help**

What is the precipitate color for Na3PO4+CaCl2?
*February 18, 2015*

**Physics**

Stones are thrown horizontally with the same velocity from the tops of two different buildings. One stone lands four times as far from the base of the building from which it was thrown as does the other stone. Find the ratio of the height of the taller building to the height ...
*February 18, 2015*

**math **

Alyssa estimates she needs 3 hours of repair work. She chooses the company that is less expensive for the 3 hour job. How much will Alyssa spend on the roof repair?
*February 18, 2015*

**science**

hi its me again I don't think this is going to help seing that this was in feb but I just got %100 9 is correct because your probley in Conexus or (Connections Academy)
*February 18, 2015*

**science**

heres mine 1.2 2.4 I know what three is and its 3 H2O2 4.2 5.4 6.1 7.3 8.2 and 4 9.1 10.2 and 3 But in not sue on 9 so don't get mad :) hope it helps ;
*February 18, 2015*

**Math**

1.) What is the sum of 5/6 + 2/3 A.) 1 1/3 *** B.) 1 1/2 C.) 1 2/3 D.) 1 3/4
*February 18, 2015*

**life orientation**

*February 18, 2015*

**math**

what does it mean WHAT IS YOUR OPINION
*February 18, 2015*

**language arts**

so what is it yalll
*February 18, 2015*

**language arts**

so what is it
*February 18, 2015*

**language arts**

im not il put it in my own words
*February 18, 2015*

**language arts**

A limerick uses meter and rhyme, providing the poem with a distinctive lilting rhythm. A limerick is... ...light verse consisting of a stanza of five lines, rhyming aabba... It also has a rhythm easily identifiable: 3-3-2-2-3. See Laura Black's limerick: There once was a ...
*February 18, 2015*

**language arts**

First, the haiku, an old Japanese form of poem, is made up of three lines with a set number of syllables per line. The pattern of syllables is 5-7-5: the first line has five syllables, the second line has seven, and the third has five. There is no rhyme scheme. This means that...
*February 18, 2015*

**language arts**

to help get me started
*February 18, 2015*

**language arts**

in a paragraph compare and contrast two following kinds of poetry haiku, limerick, centret,
*February 18, 2015*

**physics**

A simple harmonic oscillator executes motion whose amplitude is .20 m and it completes 60 oscillations in 2 minutes Calculate its time period and angular frequency
*February 18, 2015*

**chemistry**

How many moles of water does it take to make 477g of lithium hydroixide
*February 18, 2015*

**Language help ASAP!!!!**

I can't find any??
*February 18, 2015*

**Language help ASAP!!!!**

No. I'll search some up.
*February 18, 2015*

**Language help ASAP!!!!**

I only have 2, required is 3 in order to write a five-paragraph essay.
*February 18, 2015*

**Language help ASAP!!!!**

No, not thesis, I mean reason.
*February 18, 2015*

**Language help ASAP!!!!**

For 1, I chose yes because it motivates the student to work hard, and, they also get money. But I need one more thesis, and I can't seem to research another thesis up.
*February 18, 2015*

**Language help ASAP!!!!**

1. Yes, because: Motivates student to work hard The student gets money to spend 2. True??
*February 18, 2015*

**Language help ASAP!!!!**

Help!! 1. Should schools offer cash bonuses for good test scores? Support your answer with evidence. 2. TRUE or FALSE. An argumentative essay should be in your own voice.
*February 18, 2015*

**art**

Thank you so much, and I will keep note of that =)
*February 18, 2015*

**art**

Yes, thank you so much for taking the time to help =)
*February 18, 2015*

**art**

How has colantorio used visual composition to communicate the glory of war in Alexander the Great and His Conquest of Asia A colantorio shows exuberant soldiers celebrating their victory B. colantorio shows powerful Alexander slaying his enemy***** C. Colantorio shows strong ...
*February 18, 2015*

**Grammer**

Neither pesticides nor hormones are used in the production of organic foods.
*February 18, 2015*

**physics**

a small marble of negligible dimensions and of the mass 1.1kg is placed at a point A of a smooth frictionless circular
*February 18, 2015*

**Physics**

A child is twirling a 0.0120-kg plastic ball on a string in a horizontal circle whose radius is 0.100 m. The ball travels once around the circle in 0.500 s. (a) Determine the centripetal force acting on the ball. (b) If the speed is doubled, does the centripetal force double...
*February 18, 2015*

**social studies help please**

Well I went with C but the answer is A. Thanks anyways )o:
*February 17, 2015*

**social studies help please**

Thank you for the help (0:
*February 17, 2015*

**social studies help please**

Which of the following was NOT a reason why there was less industrial development in the South than in the North? A.because the rockiness of southern land made it difficult to develop railroads. B. because there was a lack of capital in the South. C. because agricultural ...
*February 17, 2015*

**Science**

I need an acrostic poem for Balanced Forces and Unbalanced Forces!
*February 17, 2015*

**Physics**

V =V1+v2+v3 14.7 =3.5+1.4+v3 v3 =9.8 ans v3 =IR3 9.8/7*10^-3 =R3 =1400 ohm
*February 17, 2015*

**Health**

Thank you!
*February 17, 2015*

**Health**

our society. us.
*February 17, 2015*

**Health**

What has the society done concerning the current problems with teen pregnancy?
*February 17, 2015*

**AP Chemistry**

OH- + HC2H3O2 --> H20 + C2H3O2- 0.0025 mol 0.0025 mol - 0 -0.0025 -0.0025 - +0.0025 0 0 - 0.0025 0.0025 mol/0.050 L = 0.050 M C2H3O2- + H20 <--> HC2H3O2 + OH- 0.050 M - 0 0 -x - +x +x 0.050-x - x x Kb = 10^(-14)/(1.8x10^(-5) = 5.56x10^(-8) = x^2/(0.050-x) x = 5.27x10...
*February 17, 2015*

**AP Chemistry**

A student titrates 25.0 mL of a 0.100 M solution of acetic acid with a 0.100 solution of sodium hydroxide. Calculate the pH at the equivalence point.
*February 17, 2015*

**GEOMETRY**

What is the value of p? A right triangle with angles measuring 45, 45 and 90 and a leg measuring P and hypotenuse measuring 44 22 22 sqrt 2 44 44 sqrt 3 It always helps to know how...thanks
*February 17, 2015*

**SS**

What are the similarities between Africa north of the equator and south of the equator?
*February 17, 2015*

**Physics**

(a) Fnet = ma = 0 Fnet = Fapp - Ff Fapp - Ff = 0 Fapp = Ff F = (Fn)(μs) F = (Fg)(0.1) F = (9.8m)(0.1) F = (9.8)(59)(0.1) F = 57.82 N (b) Fnet = Fapp - Ff F = 57.82 - (Fn)(μk) F = 57.82 - (Fg)(0.03) F = 57.82 - (9.8m)(0.03) F = 57.82 - (9.8)(59)(0.03) F = 57.82 - 17....
*February 17, 2015*

**math**

Gary measured the middle school and made a scale drawing. He used the scale 1 inch = 5 feet. The gym is 85 feet long in real life. How long is the gym in the drawing?
*February 17, 2015*

**physics**

Ft = Fc = (mv²)/r 59 = [m(20²)]/2.55 59(2.55) = 400m 150.45 = 400m m = 0.376125 kg Ft = Fc = (mv²)/r Ft = [(0.376125)(52.5²)]/2.55 Ft = 406.546875 N
*February 17, 2015*