Thursday

October 27, 2016
Total # Posts: 1,048

**AP Physics 2**

Identical point charges of +3.3 µC are fixed to three of the four corners of a square. What is the magnitude |q| of the negative point charge that must be fixed to the fourth corner, so that the charge at the diagonally opposite corner experiences a net force of zero?

*October 25, 2016*

**Math Physics Torque Equilibrium**

A uniform meterstick pivoted at its center has a 100 g mass suspended at the 21.0 cm position. At what position should a 95.0 g mass be suspended to put the system in equilibrium? What mass would have to be suspended at the 80.0 cm position for the system to be in equilibrium?

*October 22, 2016*

**algebra**

Molly deposits $200 in a savings account that has a 20% interest rate compounded annually. What will be her total after 3 years?

*October 20, 2016*

**chemistry**

is heating iodine from its solid state to a liquid state a chemical or physical change?

*September 30, 2016*

**Math**

Translate the sentence into an equality. The sum of a number times 5 and 27 is at most −26.

*September 27, 2016*

**Probability**

A customer at Cavallaro’s Fruit Stand picks a sample of 3 oranges at random from a crate containing 60 oranges, of which 4 are rotten. What is the probability that the sample contains 1 or more rotten oranges?

*July 23, 2016*

**U.S Histroy please help me**

1 c 2 a 3a 4 d 5 d 6 b 7 b 8 d 9 d 10 b 11 a 12 d 13 c 14 b 15 d 16 a 17 a 18 c 19 c 20 d you were wrong in a lot of places

*May 25, 2016*

**Math**

Josie wants to tile one square section of her countertop. She bought 850 tiles with side lengths of 1 inch. A. What is the largest side length of that countertop she can tile? Round to the nearest whole inch. B. How many tiles will she have left over?

*March 28, 2016*

**Math**

A ball is thrown striaght up from a height of 3 ft with an initial velocity of 40 feet per second. How high will the ball go? Assume that the only force acting on the ball is gravity where the acceleration due to gravity is -32 feet per second per second.

*March 24, 2016*

**math**

A certain minivan has a maximum carrying capacity of 1,200 pounds. The luggage weighs 150 pounds. Write an solve an inequality to find the maximum weight allowable for passengers. I got x+150 >= 1200 Im not sure if it's correct

*February 24, 2016*

**math**

Kim is 15 more than three times her nephew’s age. If Kim is 36, how old is her nephew

*February 19, 2016*

**Chemistry**

aCETYLENE REACTS WITH OXYGEN GAS TO PRODUCE CARBON DIOXIDE GAS AND WATER VAPOR

*January 27, 2016*

**Finance**

What is the amount of money created in the banking system due to an initial deposit of $1,000 if the required reserve is 5%? The banks are not holding any excess reserves.

*January 14, 2016*

**Finance**

Calculate the annualized rate of return on a 200-day commercial paper. This loan does not pay periodic interest; it is a discount security. The face value of the paper is $1 million and the current market value is $980,000.

*January 14, 2016*

**Science**

How much force must be applied to accelaerate a 40 kg chair at 2.8m/s2?

*November 29, 2015*

**Algebra**

The functions f(x) and g(x) are described below: f(x) = 32x + 8 g(x) = 32x − 9 The graph of g(x) is obtained by shifting down the graph of f(x) by _____ units. Numerical Answers Expected! Answer for Blank 1: „ð Question 11 (Multiple Choice Worth 5 points) (03....

*November 24, 2015*

**math**

suppose you deposit $3000 in a savings account that pays interest in a a rate of 4%. if no money is added or withdrawn from the account, how much will be in the account after ten years.

*November 9, 2015*

**Physics**

As a protest against the umpire’s calls, a base- ball pitcher throws a ball straight up into the air at a speed of 20 m/s. In the process, he moves his hand through a distance of 1.47 m. The acceleration of gravity is 9.8 m/s2 . If the ball has a mass of 0.18 kg, find ...

*November 4, 2015*

**Statistics**

10*8*13= 1,040

*October 21, 2015*

**Westside K - 8**

The sandbox has an area of 26 square feet in the length of five and a half feet what is the width of a sandbox?

*October 8, 2015*

**math**

He spent $48 on art supplies. The canvas for each of his paintings is an additional $2. He plans to sell his paintings for $10. Find the number of paintings (p) he will need to sell to break even.

*October 4, 2015*

**Language Art**

Heart of the army

*September 30, 2015*

**math**

A internet movie rental company has two different options for renting movies. Option A: pay a one-time $40 membership fee and then pay $1 for each movie rental. Option B: Do not become a member and pay $6 for each movie rental. 1. Write an expression to represent the Total ...

*September 27, 2015*

**algebra**

An experiment consists of spinning a spinner. The odds in favor of the spinner landing on an even number are 3:7. What is the probability that the spinner will not land on an even number? Type your answer as a decimal.

*September 24, 2015*

**Physics**

A descent vehicle landing on the moon has a vertical velocity toward the surface of the moon of 34.1 m/s. At the same time, it has a horizontal velocity of 51.1 m/s. At what speed does the vehicle move along its descent path? 1.Answer in units of m/s. 2.At what angle with the ...

*September 23, 2015*

**math**

F= 9/5-62+32

*September 22, 2015*

**math**

A football field is 72 yardsyards long and 46 yards wide what is the area of the field in squ are yards

*September 21, 2015*

**statistics**

DID YOU FIND THE ANSWER FOR THESE QUESTIONS?

*July 6, 2015*

**Math (PLEASE HELP!)**

Thanks so much for your help.

*June 7, 2015*

**Math (PLEASE HELP!)**

I need help for part b though.

*June 7, 2015*

**Math (PLEASE HELP!)**

The temperature of an enclosure for a pet snake should be about 27°C, give or take 3°C. (show your work) a) What absolute value expression can be used to represent this situation? b) Use the expression to determine the temperature range the enclosure should have.

*June 7, 2015*

**College Chemistry**

I think the half reactions are: Fe2+ --> Fe3+ + 1e Oxidation? Cr3+ + 1e --> Cr2+ Reduction? I don't know the E0 for each... and I know to be spontaneous: E0cathode-E0anode where it is postive...

*May 17, 2015*

**College Chemistry**

For the reaction that occurs in the voltaic cell Fe(s)|Fe2+(aq)||Cr3+(aq),Cr2+(aq)|Pt(s) use data from Appendix D in the textbook to answer the following questions: a)Determine the equation for the cell reaction b)Determine E0 cell c)Determine ΔG0 d)Determine K I'm ...

*May 17, 2015*

**civics**

What amendment states "you have the to bare arms"? the 3rd amendment.

*May 15, 2015*

**Physical science**

A hydraulic lift is used to lift a heavy machine that is pushing down on a 3.0 m2 piston A1 with a force F1 of 1200 N. What force F2 needs to be exerted on a 0.090 m2 piston A2 to lift the machine? im having problems tring to solve it can you please help me?

*April 20, 2015*

**math**

17,830.80

*April 7, 2015*

**math**

How do you find the slope for the direct variation equation y=11x

*April 5, 2015*

**Chemistry**

How many grams of CO(g) are there in 67.0mL of the gas at 0.826atm and 30 ∘C?

*March 20, 2015*

**math**

my teacher keeps saying there is some formula or equation to solve this? Do you know.

*March 12, 2015*

**math**

Find the value of each markup or discount. Original: $20.00 percent of discount: 40%

*March 12, 2015*

**math**

How do you solve percent of change? My problem says identify the percent of change as an increase or decrease. Find the percent change. Round to the nearest 10th. 20 to 25

*March 12, 2015*

**Math**

A bag contains 1 red, 7 black and two yellow marbles. What is the probability of selecting 1 yellow marble, not replacing it then selecting another yellow marble? How do you solve this?

*March 12, 2015*

**math**

One is 2% of what number?

*March 10, 2015*

**Math**

what is 30% of 90? How do I solve with out calculator?

*March 10, 2015*

**Math**

Sam needs to cut a piece of sheet metal into 8 pieces. All the cuts are made in the same direction. It takes him 5 min. to make each cut. How many cuts will Sam make?

*March 10, 2015*

**math**

it takes about 20 minutes to grade a student's paper. How long, in hours, does it take to grade papers for a class of 25 people?

*February 27, 2015*

**6th Grade Math**

What is the rational number between 1/3 and 5/6

*January 21, 2015*

**Math**

arnold buy 8/9 pound og ground turkey. he uses 3/4 pound of the ground turkey to make meatballs . how many pound s of ground turkey are left

*January 19, 2015*

**Physics**

A clerk moves a box of cans down an aisle by pulling on a strap attached to the box. The clerk pulls with a force of 187.0 N at an angle of 25.0◦ with the horizontal. The box has a mass of 36.0 kg, and the coeﬃcient of kinetic friction between the box and ﬂ...

*December 22, 2014*

**algebra**

an access ramp has a height of five feet and a horizontal distance of 60 feet. find the length of l of the ramp tothe nearest tenth of a foot

*December 16, 2014*

**algebra**

a support wire 12 yardslong is attached to the top of a utility pole 10yards tall and is then stretched out. to the earest tenth of a yard,find how far from the base of the pole wire will beattached to the ground-breaking

*December 16, 2014*

**algebra**

the lengths of two sides of a right triangle are given. find the length of the third side. a=9,c=41

*December 16, 2014*

**Social studies**

What is the acrostic poem for Bill of Rights?

*December 9, 2014*

**science**

A 7E+3 kg object is 9.29 m away from a 4.7E+8 kg object. What is the gravitational force between the two objects?

*December 7, 2014*

**math**

A grocery store sells snacks by weight. A six ounce bag of mixed nuts costs $3.60. Predict the cost of a ounce bag

*December 7, 2014*

**thermal energy states of matter**

Lengths of railway tracks have small gaps between them. Why are they built this way and what might happen if there were no gaps

*October 30, 2014*

**Chemistry**

The answer is -168kJ

*October 23, 2014*

**Physics**

If a car increases its speed from 5 meters per second to 25 meters per second over 40 seconds. what is the acceleration? Give the unit.

*October 12, 2014*

**Physics**

o.625

*October 12, 2014*

**Physics**

A car increase its speed from 5 meters per second to 25 meters per second over 40 seconds, what is the acceleration

*October 12, 2014*

**Physics**

If a car increases its speed from 5 m/s to 25 m/s over 40 seconds. what is the acceleration? Give the unit.

*October 12, 2014*

**physics**

Calculate the power output of a 1.7g spider as it walks up a windowpane at 2.5cm/s . The spider walks on a path that is at 25 ∘ to the vertical.

*October 10, 2014*

**physics**

a locomotive is accelerating at 1.6 meters per second it passes through a 20.1 meter wide crossing in a time of 4.03 seconds after the locomotive leaves the crossing how much time is required until it's speed reaches 5.3 meters per second

*October 6, 2014*

**language arts**

Identify the complete adjective clause. The car I drive has 50,000 miles on the odometer.

*September 24, 2014*

**physics**

The longest pass in NFL history is approximately 83.7 m. Ignoring the effects of air resistance, calculate what must have been the initial speed of the football.

*September 23, 2014*

**Algebra 1**

What is an expression for the sale price of a shirt that is sold at 40% off the original price p? A. t=80-m B. t=m-80 C. t=80+m D. t=80m

*September 18, 2014*

**math**

Times the cups of sugar by the amount of pies.

*September 17, 2014*

**Algebra 2**

How would I find out the year by plug in 3885 for S and solving?

*September 17, 2014*

**Algebra 2**

From 1990 to 1994, the mail order sales of health products in the United States can be modeled by S = 10t^3 + 115t^2 + 25t + 2505 where S is the sales (in millions of dollars) and t is the number of years since 1990. In what year where about $3885 million of health products sold?

*September 17, 2014*

**Math-PLEASE help me**

In order to get the answer you have to divide 2.78 and 2 which equals to 1.39

*September 15, 2014*

**Physics**

Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 6.02 m. The stones are thrown with the same speed of 9.20 m/s. Find the location (above the base of the ...

*September 13, 2014*

**Math**

a number and its absolute value are equal. if you subtract 2 from the number, the new number and its absolute value are not equal. what do you know about the number? what is a possible number that satisfies these conditions?

*September 11, 2014*

**algebra**

what expression represents the series 1+5+25+125+625?

*August 26, 2014*

**math**

thanks both of you!

*August 14, 2014*

**math**

What is the fewest number of 7's that can be added together to make their sum greater than 4000? A. 4001 B. 572 C. 571 D. 470

*August 14, 2014*

**math**

A rowing team rowed an average of 17.2 miles per hour with the current and 10.4 miles per hour against the current. Determine the team's rowing speed in still water and the speed of the current I need help fast. anyone?

*July 27, 2014*

**Statistics **

A research worker wishes to estimate the mean of a population by using sufficiently large sample. At the confidence level of 99%,the sample mean will be within 35% of the standard deviation. How large a sample should be taken?

*June 11, 2014*

**Chemistry**

Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 1.9×10−9M Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 2.1×10−2M Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH&#...

*April 29, 2014*

**Social Studies**

Ya i took the same test and got it wrong to......thanks ms.sue :(

*April 24, 2014*

**math**

2(2+0.5+0.75)= 2 (2.5+ 0.75)= 2 ( 3.25 ) 6.5

*April 22, 2014*

**math**

Allison needs 2 yards of blue ribbon, 1/2 yard of yards of yellow ribbon and 3/4 yards of green ribbon at $ 2.00 a yard. How much money do she need for the ribbon.

*April 22, 2014*

**biology 4**

Break apart into separate genes

*April 17, 2014*

**Chemistry**

depending on the reaction taking place, the k values would be different: if the Cocaine is a product, then the pH is being lowered (due to the addition of the H+ ion). Thus the concentration of *C cocaine* would be higher than the *C freebase*. Meaning the K value would be ...

*April 13, 2014*

**Math**

Pay can buy a package of 20 balloons for $6 or a package of 50 for $9. How much cheaper is each balloon in the package of 50 balloons?

*April 8, 2014*

**Math**

What is the number of tens for 599

*April 7, 2014*

**Math: Thinking Mathematically**

A flagpole has the height of 16 yards It will be supported by three cables, each of which is attached to the flagpole at a point 4 yards below the top of the pole and attached to the ground at point that is 9 yards from the base of the pole, Find the total number of feet of ...

*March 21, 2014*

**social studies**

2 is snwashbuckler

*March 6, 2014*

**physics**

A 2.284 km car is moving down a road with a slope of 13% at a constant speed of 11 m/s. What is the direction and magnitude of the frictional force?

*February 25, 2014*

**Science**

I also think its a

*February 24, 2014*

**Calculus**

The half-life of radioactive strontium-90 is approximately 31 years. In 1960, radioactive strontium-90 was released into the atmosphere during testing of nuclear weapons, and was absorbed into people's bones. How many years does it take until only 11 percent of the ...

*February 17, 2014*

**fractions**

Gisela finished washing 3/4 of her laundry. She washed 1/3 of this laundry today. Use a rectangle to draw a model to match your expression. What fraction of her laundry did she wash today?

*February 11, 2014*

**fractions**

A box with 2/3 cup of cornmeal was used to make pizza. Shelly used 1/4 of the box of cornmeal. Use a rectangle to draw a model to match your expression. What fraction of a cup of cornmeal did she use for the pizza?

*February 11, 2014*

**math**

A box with 2/3 cup of cornmeal was used to make pizza. Shelly used 1/4 of the box of cornmeal. Use a rectangle to draw a model to match your expression. What fraction of a cup of cornmeal did she use for the pizza?

*February 11, 2014*

**math**

Gisela finished washing 3/4 of her laundry. She washed 1/3 of this laundry today. Use a rectangle to draw a model to match your expression. What fraction of her laundry did she wash today?

*February 11, 2014*

**Physics**

Problem 1 (80 points) Consider a spring of equilibrium length L, lying horizontally in a frictionless trough. The spring has cross sectional area S perpendicular to its length. The trough constrains the motion of the spring so that any wave propagating along the spring is a ...

*January 29, 2014*

**math**

jake and jeremy both join a book club. jake pays $6 per book plus a $12 joining fee while jeremy pays a $17 joining fee and $5 per book. How many books will they have to buy before they are paying the same amount?

*December 17, 2013*

**Math**

Eli can’t see why a size transformation preserves orientation, but a similitude does not. How could you help him understand this concept?

*December 8, 2013*

**Physics**

Sitting besides a friend on a park bench, you grab her hat and start running in a straight line away from her. Over the first 15.0, you accelerate at 1 m/s^2 up to your maximum running speed. You then continue at your maximum running speed for 15 s more before your friend ...

*November 18, 2013*