Monday

July 6, 2015

July 6, 2015

Total # Posts: 111

**chemistry**

a 2.00g sample of zinc metal is added to a calorimeter containing 150g of nitric acid solution initially at 20.0 degrees celsius . The temperature of the solution increased to 28.0 degrees celsius . Calculate the delta H of the reaction assuming that the specific heat capacity...
*June 20, 2015*

**Math **

Two 6-sided dice are rolled at the same time. How many outcomes correspond to the event that the sum of the numbers is 5?
*June 9, 2014*

**Math**

Thank You bobpursley
*April 10, 2014*

**Math**

I really need help on this PLEASE a 5 man baseball team how would I find average? Would it be total hits divided by at bats or add up the 5 averages and divide by 5? Thank You - Please help me!
*April 10, 2014*

**Math**

For a 5 man baseball team how would I find the average? Would it be total hits divided by total at bats or add up 5 averages and divide by 5?
*April 10, 2014*

**math**

samantha has 28 and she gets 28 more how many would she have in all.
*March 28, 2014*

**physics**

A car moving with an initial speed v collides with a second stationary car that is 46.0 percent as massive. After the collision the first car moves in the same direction as before with a speed that is 37.7 percent of the original speed. Calculate the final speed of the second...
*March 24, 2014*

**physics**

Three identical uniform meter sticks are placed on the floor. The first stick lies along the y axis from y = 0.320 m to y = 1.32 m. The second stick lies along the x axis from x = 0.330 m to x = 1.33 m. The third stick is positioned so that one end is on the x axis at x = 0....
*March 21, 2014*

**medical coding**

A patient is admitted to the hospital for chest pains due to tachycardia. While in the hospital, the patient was also treated for type 1 diabetes. Upon further review, the coder noted that the documentation and ekg didn, t provide further evidence of the type of tachycardia or...
*December 8, 2013*

**physics**

A staging that weighs W staging supports a painter weighing 770 N. The reading on the left scale is 660 N and the reading on the right scale is 410 N. What is the weight of the staging? Answer in units of N
*September 8, 2013*

**physics**

An arrow is shot from a bow at 20.0 m/s at an angle of 65 degrees above the horizontal. The arrow leaves the bow at a height of 1.80 m. At what height will it strike a wall that is 10.0 m away? (Remember to connect the two motions of the arrow using time.)
*September 5, 2013*

**Math**

right because you would divided 32 and 4 to get 8
*April 8, 2013*

**government**

That's really helpful of u.
*February 28, 2013*

**science**

656.2
*February 21, 2013*

**Physics**

Calculate the distance (in ) that Larry runs if he maintains an average speed of 8.9 for 1 hour.
*October 2, 2012*

**Physics**

Two small pith balls, each of mass m = 16.6 g, are suspended from the ceiling of the physics lab by 1.8 m long fine strings and are not moving. If the angle which each string makes with the vertical is è = 19°, and the charges on the two balls are equal, what is the...
*June 6, 2012*

**Intergration: Measurement (Math)**

I don't get it. I need to find out these conversions. 15,000 g= ____ kg 5,000 mL= ____ L 75 mL= ____ L 390 mL= ____ L 0.03 m= ____ mm 6 m= _____ mm 2.48 L= ______ mL 43.2 L= ______ mL 807 mL= _____ L 3,751 m= _____ km
*May 14, 2012*

**PHYSICS HELP!!!!!!!**

You walk 50 m to the north, then turn 60° to your right and walk another 45 m. How far are you from where you originally started?
*March 1, 2012*

**PHYSICS ARGENT!!!**

Determine the scalar product of A= 3.0i + 1.0j - 2.0k and B= 3.0i - 2.0j - 3.0k
*March 1, 2012*

**math**

how many feet in a dozen
*February 24, 2012*

**Physics**

Review Conceptual Example 11 before attempting this problem. An empty capacitor is connected to a 9V battery and charged up. The capacitor is then disconnected from the battery, and a slab of dielectric material (k=3)is inserted between the plates. (a) Find the amount by which...
*February 9, 2012*

**Physics**

The membrane that surrounds a certain type of living cell has a surface area of 2.13 x 10-9 m2 and a thickness of 1.94 x 10-8 m. Assume that the membrane behaves like a parallel plate capacitor and has a dielectric constant of 6.4. (a) If the potential on the outer surface of ...
*February 9, 2012*

**Medical Coding**

This is what I used: 162.9 , 511.81, 32421, 32421-76
*January 10, 2012*

**math**

fiind equivalent fractions with a common denominator and order from least to greatest 9/15 ,1/3 ,2/5
*December 15, 2011*

**math**

fiind equivalent fractions with a common denominator and order from least to greatest 7/12 ,2/6 ,7/8
*December 15, 2011*

**math**

fiind equivalent fractions with a common denominator and order from least to greatest 3/8 ,1/3 , 3/4
*December 15, 2011*

**math**

find equivalent fractions with a common denominator and order from least to greatest 3/7 ,1/9 ,2/3
*December 15, 2011*

**physics**

The temperature of 2.7 moles of an ideal gas is 471 K. How much work does the gas do in expanding isothermally to 3.7 times its initial volume?
*December 7, 2011*

**Physics**

When you take a bath, how many kilograms of hot water (50°C) must you mix with cold water (13°C) so that the temperature of the bath is 36°C? The total mass of water (hot plus cold) is 215kg. Ignore any heat flow between the water and its external surroundings.
*December 1, 2011*

**Physics**

A solid object floats on ethyl alcohol, with 60.9% of the object's volume submerged. Find the density of the object.
*December 1, 2011*

**Physics**

In the process of changing a flat tire , a motorist uses a hydraulic jack. She begins applying a force of F1=8.6N to the input piston. As a result, the output plunger applies a force of F2=305N to the car. The height difference between the input piston and the output plunger ...
*December 1, 2011*

**physics**

how can projectile motion be applied in porkour?
*November 30, 2011*

**physics**

A uniform disk with a mass of 27.3 kg and a radius of 0.309 m is free to rotate about a frictionless axle. Forces of 90.0 N and 125 N are applied to the disk, as the drawing indicates. (b) What is the angular acceleration of the disk?
*November 3, 2011*

**physics**

Suppose you need to measure the mass of an object, but have only a 7-kg standard mass and a meter stick. Place a knife edge under the 50-cm mark of the meter stick. Then put the 7-kg standard mass at the 39.1-cm mark and place the object so as to balance the standard mass. If ...
*November 3, 2011*

**physics**

A uniform disk with a mass of 27.3 kg and a radius of 0.309 m is free to rotate about a frictionless axle. Forces of 90.0 N and 125 N are applied to the disk, as the drawing indicates. (a) What is the net torque produced by the two forces? (b) What is the angular acceleration ...
*November 2, 2011*

**physics**

A person is sitting with one leg outstretched, so that it makes an angle of = 39.9o with the horizontal. The weight of the leg below the knee is 34.7 N with the center of gravity located below the knee joint. The leg is being held in this position because of the force M ...
*November 1, 2011*

**physics**

A ball of radius 0.2m rolls along a horizontal table top with a constant linear speed of 3.04 m/s. The ball rolls off the edge and falls a vertical distance of 2.02m before hitting the floor. What is the angular displacement of the ball while it is in the air.
*October 26, 2011*

**physics**

Find the net torque (magnitude and direction) produced by the forces F1 (F1 = 17.3 N) and F2 (F2 = 26.1 N) about the rotational axis shown in the drawing. The forces are acting on a thin rigid rod, and the axis is perpendicular to the page. (x = 0.323 m, y = 1.021 m, = 28.6°)
*October 26, 2011*

**physics**

Find the net torque (magnitude and direction) produced by the forces F1 (F1 = 17.3 N) and F2 (F2 = 26.1 N) about the rotational axis shown in the drawing. The forces are acting on a thin rigid rod, and the axis is perpendicular to the page. (x = 0.323 m, y = 1.021 m, = 28.6°)
*October 26, 2011*

**Science**

Why does an ion have an electrical charge?
*September 5, 2011*

**help me!**

is -5 a real #? rational #? irrational #? whole #? integer? counting (natural) #?
*April 13, 2011*

**math**

What is the total value of a 400 certificate of deposit after 36 month if the simple annual interest rate is 3 percent?
*March 31, 2011*

**literary**

what is the first person narattor
*February 12, 2011*

**9th grade**

What is a parent function?
*November 12, 2010*

**Stats**

An auditor reviewed 25 oral surgery insurance claims from a particular surgical office, determining that the mean out-of-pocket patient billing above the reimbursed amount was $275.66 with a standard deviation of $78.11. (a) At the 5 percent level of significance, does this ...
*November 3, 2010*

**Word within the Word Analogy Help**

That I can not answer, my friend;) peace out dude;)1960s rule!
*November 1, 2010*

**math question**

Four race car drivers participate in a race on a loop track. All four are going at a constant speed. Assume that they did a ying start. That is, all four crossed the start line at the same instant while each was going their constant speed. Then they continue driving forever ...
*October 29, 2010*

**Algebra**

find the x and y intercepts: 3x - 2y = -12 i know for the x intercept, put y=0 in the equation,s olve for x. For the y intercept, do the reverse. But i still dont understand how to solve it. Its just majorly fustrating me. And i can't go to school and ask a teacher because...
*October 21, 2010*

**algebra**

eh idk. i hate showing work so im just not going to do. i hate math i suck at it. im more biology, chemistry, science kid.^^
*October 21, 2010*

**algebra**

Find the x and y intercepts: 3x - 2y = -12 i know the anwser is (2 , -3) but how do i show the work that i found that anwser?
*October 21, 2010*

**math**

divide mi by gal then round the number up if the number after the decimal point is 5 or above and down if the number after the decimal is less than 5
*September 19, 2010*

**algebra**

save a 100 a month for 30 yrs at 3% interest compounded monthly how much do you have at the end of 30 years what are the steps to solve this problem
*September 18, 2010*

**algebra**

uo=100 un=un-1(1+.03/12)+100 the senerio is save 100 a month for 30 years interest rate 3% compounded monthly the teacher said the answer is 23,796 I can't get this to work
*September 18, 2010*

**algebra**

help I don't understand the recursive formula
*September 18, 2010*

**science**

Write a complete C program that asks the user to enter continuously a series of words and the word “end” to stop. For each word entered, you should output the number of characters of this word and then ask him to enter the other word. Finally, when he finished ...
*April 25, 2010*

**choir**

I have been given a piece of music for an audition piece to learn over spring break, it is called Danny boy and i can not exactly get one part correct. How do i get this part?
*April 6, 2010*

**physics**

A positive point charge = 2.1×10−5 is fixed at the origin of coordinates, and a negative point charge = −5.4×10−6 is fixed to the axis at . abeer abdullah Part A Find the location of the place along the axis where the electric field due to these ...
*March 6, 2010*

**Critical Thinking**

go to aceyourclassesdotcom for crt 205 assignments
*March 3, 2010*

**enviromental science**

go to aceyourclassesdotcom for Axia assignments
*March 3, 2010*

**com 150**

go to aceyourclassesdotcom for Axia assignments
*March 2, 2010*

**Algebra**

Name the property used in the equation 15n=15 multiplicative identity or multiplicative inverse?
*January 21, 2010*

**Algebra **

i dont get how to use the points like how you even got to that... is it possible to explain that like how you get it??? i have a final in like two days please help!
*January 21, 2010*

**Algebra **

how do you find the slope that passes through the points (0,-4) and (3,-2)
*January 21, 2010*

**Math**

find the x-intercepts by factoring g(x)=x^4-27x I'm really confused. All I can think is to factor out one x, but that only makes the x-intercept 0 and the answer is supposed to be 0 and 3. I don't understand what I'm doing wrong.
*October 3, 2009*

**Spanish 1**

it's how you write the number 300
*October 3, 2009*

**Math - quick question**

thank you.
*September 29, 2009*

**Math - quick question**

in a polynomail function, does the leading coeeficient do anything else than tell you the direction of the graph (i.e. whether it's inverted or not)?
*September 29, 2009*

**Math - quick question**

in a polynomail function, does the leading coeeficient do anything else than tell you the direction of the graph (i.e. whether it's inverted or not)?
*September 29, 2009*

**Social Studies**

yah i thought too. i asked a few friends when it was due. and they its due tomarrow. but thanks anyways ")
*September 15, 2009*

**Social Studies**

i dont have it. "(
*September 15, 2009*

**Social Studies**

Compare egytion Empire to that of the symerians...
*September 15, 2009*

**Social Studies**

Thanks agin. Ms. Sue!! ") i have alot of essays to wright and this is helping alot.!
*September 15, 2009*

**Social Studies**

what is the code of the Hummurrabi.? and if possible can i have examples?
*September 15, 2009*

**Social Studies**

o i see. i see thank you")
*September 15, 2009*

**Social Studies**

So even tho that the Aristocracy was a form of govenment it was more of a social standing than a democracy??
*September 15, 2009*

**Social Studies**

yes but y??
*September 15, 2009*

**Social Studies**

Could the greeks have developed a democracy without the development of a Aristocracy? And y??
*September 15, 2009*

**Social Studies**

1. a member of an aristocracy, esp. a noble. 2. a person who has the tastes, manners, etc., characteristic of members of an aristocracy. 3. an advocate of an aristocratic form of government. 4. anything regarded as the best, most elegant, or most stylish of its kind
*September 15, 2009*

**Social Studies**

yea it has to do with the govenment of, by and for the people im not sure.
*September 15, 2009*

**Social Studies**

Could the greeks have developed a democracy without the development of a Aristocracy?
*September 15, 2009*

**Math**

Find the HCF of f(x) = 6x^3 + 24x^2 + 18x, g(x) = 4x^4 + 4x^3 - 24x^2
*May 25, 2009*

**math**

One more: The LCM of f(x) = 4(x - 1)^2 (x^2 + 6x + 5) and g(x) = 10(x - 1) (x + 2) * (x^2 + 7x + 10) is ...
*May 24, 2009*

**math**

The LCM of f(x) = 20(x - 1)^3 (x + 2)^2, g(x) = 250(x - 1)^2 (x + 2) is _______... i'm not sure how to do this at all...
*May 24, 2009*

**geology(science) am i correct**

the sea floor spreads when lava rises from cracks and cools from the water therefore pushes the old floor towards the continents and pushes them making them move 1 to 24 centimeters every year
*March 13, 2009*

**biology**

why do biologists use a classification system to study the diversity of life
*February 24, 2009*

**Economics**

Chaparral Elmentry School
*December 19, 2008*

**Math**

(12x12)-7+6=
*October 6, 2008*

**Math**

How to simplify? 11h 179min
*April 26, 2008*

**Math**

how do you evaluate these numbers? /-48/-/-20/ -/-51/ I have looked every where and I need help please.
*April 25, 2008*

**yarmouk **

E[y]=3/2
*April 20, 2008*

**ecology**

what is the word for the definition stress that puches a mass of rock in two opposite directions?? please help!
*April 20, 2008*

**science**

Which family/group does the element neon belong to.
*April 9, 2008*

**american history**

did america have more then one civil war?
*March 17, 2008*

**american history**

whats a carpetbagger?
*March 17, 2008*

**american history**

What were 10 problems facing america after the civil war and why were they problems?
*March 17, 2008*

**math**

thankx alot for the answer, but i got the same equation and can not factor it.
*March 15, 2008*

**math**

you want to make an open-topped box from a 20 cm by 20 cm piece of cardboard by cutting out equal squares from the corners and folding up the flaps to make the sides. what are the dimensions of each square, to the nearest hundredth of a cm, so that the volume of the resulting ...
*March 15, 2008*

**Chem help**

I have the answers for these but can you please explain to me how to get them? Thanks. Place the following in order of decreasing lattice energy. KBr RbI MgS a. KBr > RbI > MgS b. KBr > MgS > RbI c. RbI > KBr > MgS d. MgS > KBr > RbI e. MgS > RbI >...
*November 28, 2007*

**Chem Urgency**

Is it possible to determine resonance structures.....or no? I understand what it is but I am not sure how the drawings come about or even how to recognize them.
*November 26, 2007*

**Chem ques.**

thanks
*November 25, 2007*