Sunday

February 19, 2017
Total # Posts: 65

**DC Chem**

calculate how many grams of the products listed would be produced by complete reaction of 0.160 mol of the first reactant. AgNO3(aq) + LiOH(aq) → AgOH(s) + LiNO3(aq) AgOH

*February 24, 2016*

**geometry**

the side of a triangle are 7,16,18. find the longest side of a similar triangle whose shortest side is 7.5.

*February 11, 2016*

**math**

i need to keep my a+ in math, and finish my homework TONIGHT. What is 5/8, 5/9, and 5/10 in least to greatest.

*January 12, 2016*

**Chemistry**

If an electric discharge produces 800 cm3 of ozone (O3), how many cm3 of oxygen (O2) are required? 3O2(g) ---> 2O3(g)

*January 11, 2015*

**physics**

Gas is contained in a 6.00-L vessel at a temperature of 15.0°C and a pressure of 6.00 atm. (a) Determine the number of moles of gas in the vessel. (b) How many molecules are in the vessel?

*December 13, 2014*

**physics**

A rigid tank contains 1.80 moles of an ideal gas. Determine the number of moles of gas that must be withdrawn from the tank to lower the pressure of the gas from 21.6 atm to 5.80 atm. Assume the volume of the tank and the temperature of the gas remain constant during this ...

*December 13, 2014*

**physics**

Gas is confined in a tank at a pressure of 12.7 atm and a temperature of 22.0°C. If two-thirds of the gas is withdrawn and the temperature is raised to 79.0°C, what is the pressure of the gas remaining in the tank?

*December 13, 2014*

**physics**

A sample of lead has a mass of 69.00 kg and a density of 1.130 104 kg/m3 at 0°C. (Assume the average linear expansion coefficient for lead is 2.900 10-5(°C−1).) (a) What is the density of lead at 80.00°C? (Give your answer to four significant figures.) (b) ...

*December 13, 2014*

**Biology**

can someone please help me with this question because I'm having a really hard time with this question.

*October 20, 2014*

**Biology**

List all the structures that every cell, regardless of type, must have.

*October 20, 2014*

**biology**

Julie took her lunch to work every day. She wanted to know what type of insulation would keep her lunch the coolest. Each day, she took her lunch in a different container: a Styrofoam cooler box, a plastic cooler box and a soft insulated lunch bag. She measured the temperature...

*September 30, 2014*

**Physics**

Lol first of all nicole, Im not even in florida. Second of all, I'm trying to get help on these questions, you tit, I specifically asked for someone to show me how to solve it so i can do it on my own so bite me.

*May 20, 2014*

**Physics**

Help with Physics homework Please and thank you!? I need help on these two questions. I'm not looking for the answer because I really need to learn how to do this on my own. But if someone could show me what equations to use to answer the steps in the questions and explain...

*May 20, 2014*

**analytical geometry**

make a full analysis of algebraic equation of y=(x-2)^2(x^2-9)

*May 15, 2013*

**pysics**

A ball is dropped from the roof of a building. How fast is it moving after 4.5 seconds? (Absolute value)

*January 5, 2013*

**Physics. Please please help!**

Nevermind, that'd be my error. Read it wrong

*November 14, 2012*

**Physics. Please please help!**

Elena, Im a little stuck on the first equation you have given. In the denominator, we are supposed to multiply r1 by r2. How did you get 20 x 10? Shouldn't it be 0.1m x 0.02m?

*November 14, 2012*

**Math Question 2**

i need to noe the factors of 63. im doing math hw

*May 15, 2012*

**healthcare reimbursement**

What is the difference between hospital claims processing and professional (provider and/or CMS 1500) claims processing?

*April 10, 2012*

**statistics**

When someone buys a ticket for an airline flight there is a 0.0995 probability that the person will not show up for the flight (based on data from the IBM research paper by Lawrence, Hong, and Cherrier). An agent for Air America want to book 24 persons on an airplane that can ...

*March 1, 2012*

**Chem**

Zinc reacts with HCl to produce ZnCl2 and Hydrogen gas, H2. What volume, in ml of a 1.25 M solution would be required to completely react with 3.27 g of Zn? Zn(s) + 2 HCl (aq) -------> ZnCl2 + H2

*December 13, 2011*

**physics help!**

Objects of equal mass are oscillating up and down in simple harmonic motion on two different vertical springs. The spring constant of spring 1 is 155 N/m. The motion of the object on spring 1 has twice the amplitude as the motion of the object on spring 2. The magnitude of the...

*November 19, 2011*

**physics**

A thin uniform rod is rotating at an angular velocity of 7.70 rad/s about an axis that is perpendicular to the rod at its center. As the figure indicates, the rod is hinged at two places, one-quarter of the length from each end. Without the aid of external torques, the rod ...

*November 19, 2011*

**physics**

A uniform plank of length 5.0 m and weight 225 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 408 N walk on the overhanging part of the plank before it just begins to tip?

*November 11, 2011*

**physics**

Review Conceptual Example 7 before starting this problem. A uniform plank of length 5.0 m and weight 225 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 408 N walk on the...

*November 11, 2011*

**physics**

One end of a meter stick is pinned to a table, so the stick can rotate freely in a plane parallel to the tabletop. Two forces, both parallel to the tabletop, are applied to the stick in such a way that the net torque is zero. The first force has a magnitude of 2.00 N and is ...

*November 11, 2011*

**physics**

A top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the body of the top. The string has a length of 59 cm and is wrapped around the top at a place where its radius is 1.9 cm. The thickness of the string is negligible. The top is ...

*November 11, 2011*

**physics**

A 4.15-g bullet is moving horizontally with a velocity of +369 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...

*November 4, 2011*

**physics**

A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block initially at rest on a horizontal frictionless surface. Air ...

*November 4, 2011*

**physics**

got it already thanks

*November 4, 2011*

**physics**

A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 95 kg. The mass of the rock is 0.34 kg. Initially the wagon is rolling forward at a speed of 0.50 m/s. Then ...

*November 4, 2011*

**physics**

A 4.15-g bullet is moving horizontally with a velocity of +369 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...

*November 4, 2011*

**physics/ 2D motion**

A projectile of mass 0.539 kg is shot from a cannon. The end of the cannon’s barrel is at height 6.4 m, as shown in the figure. The initial velocity of the projectile is 9 m/s . How long does it take the projectile to hit the ground? Answer in units of s

*September 25, 2011*

**physics (please help!)**

A projectile of mass 0.539 kg is shot from a cannon. The end of the cannon’s barrel is at height 6.4 m, as shown in the figure. The initial velocity of the projectile is 9 m/s . How long does it take the projectile to hit the ground? Answer in units of s

*September 21, 2011*

**physics**

if a ball is thrown down at an inital speed of 22 m/s, what will be its position after 2.8 seconds? acceleration is 9.8 m/s squared

*September 11, 2011*

**physics**

Thank you so much!

*September 11, 2011*

**physics**

if a ball is thrown into the air at a speed of 22 m/s what is its position after 2.8 seconds?

*September 11, 2011*

**chemistry**

calculate the heat released for 5.00 grams if H2O cooling from 99 degrees celcius to 22 degrees celcius in joules and calories

*April 3, 2011*

**Chemistry**

Based on the steps occurring in an acid-base reaction, which definition of acids and bases is most practical? Give three reasons for your choice.

*March 18, 2011*

**algebra**

Find the volume of a cube whose side measures four x to the seventh power.

*February 22, 2011*

**PHI**

what am I suppose to answer here. The main point of this argument or what? I have never answer a question about analyzing the flaw? What does that mean, what should I be looking at? is is for mistakes in the arguments or what? Thank you

*December 6, 2010*

**10th grade**

well first you find how many coins there are in all. In this problem the entire amount is 6 coins, 3 of the 6 coins are dimes, if you pull out one dime there are now 2 dimes out of 5 coins ( because you took one away) so the answer would be two out of five chances.

*December 5, 2010*

**computer science**

Given an equilateral triangle with different charges namely charge on A is negative 4nC; B is positive 2nC and C is 1nC. The sides are all equal with 20cm. How can you calculate the resultant field on A; the mutual potential energy of the system?

*October 25, 2010*

**Math**

Solve for: cos (2 theta) = 2 - 2 sin^2 (theta)

*October 21, 2010*

**math**

2/3

*October 21, 2010*

**algebra**

2m-1=3m what is the first step needed to solve this

*June 16, 2010*

**Math**

what is the simplest form of 6/15, 15/60,and 78???????

*October 19, 2009*

**6th grade**

Because particles or molecules are always moving!!!

*October 12, 2009*

**Alegra II**

He Has Snow Brains

*February 10, 2009*

**math**

3/5 of the members of a hiking club went on the last hiking trip. if 39 people went on the last hiking trip how many are in the club?

*February 5, 2009*

**Spanish**

Use direct object pronouns in this sentence. Mi consejero académico me hizo unas sugerencias.

*August 27, 2008*

**Physical Science**

Can be used to represent an idea, object, or event that is too big, too small, too complex, or too dangerous to observe or test directly.

*August 19, 2008*

**Physical Science**

I am sorry, this is homework but this is all that is on each statement.

*August 19, 2008*

**Physical Science**

I am sorry, this was all I had on the puzzle and it is homework that I had in Physical Science.

*August 19, 2008*

**Physical Science**

Non of those work because I'm working on this crossword puzzle, and the word is 8 letters long and ends with a D.

*August 19, 2008*

**Physical Science**

Exact, agreed-upon quantity used for comparison.

*August 19, 2008*

**Physical Science**

I accidently typed in my next question in the wrong thing.

*August 19, 2008*

**Physical Science**

Can be used to represent an idea, object, or event that is too big, too small, too complex, or too dangerous to observe or test directly.

*August 19, 2008*

**Physical Science**

Application of science to help people

*August 19, 2008*

**Statistics**

It costs you $10 to draw a sample of size n=1 and measure the attribute of interest. You have a budget of $1,200. a. Do you have sufficient funds to estimate the population mean for the attribute of interest with a 95% confidence interval 4 units in width? Assume stdeviation(...

*May 3, 2008*

**Algebra**

A sudden debt payoff

*February 8, 2008*

**social studies**

what was used to stuff the nose of a mummy

*January 8, 2008*

**5th Grade Math**

how do you do metric measurement

*April 23, 2007*

**social studies**

Carpenters

*November 11, 2006*

**Calculus**

There is a sign that is 10ft on one side and 15ft on the other side (from the ground to the base of the sign), the billboard itself is 20ft. The painter brings a 25ft ladder in length. If the patch of ground 10ft from the base of the sign is used, at what point will the ladder...

*October 24, 2006*

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