Saturday

July 30, 2016
Total # Posts: 931

**Chemistry**

0C4H8 + Cr2O3 + 6HCl = 0C2H4O2 + 2CrCl3 + 3H2O
*May 8, 2014*

**science PLEASE CHECK MY ANSWERS**

what about the end of the test
*May 7, 2014*

**science PLEASE CHECK MY ANSWERS**

youv are all cheaters actually do the lesson
*May 7, 2014*

**Chemistry**

1.2 g NH3
*April 27, 2014*

**early childhood education **

what are the responsibilities that a teacher has to volunteer parents when these parents are invited to participate in learning activities?
*April 24, 2014*

**early childhood development **

an emotional response created by the separation between teachers and parents is the fear that the teachers will replace the parents in their children's affections. describe the conflicting emotions the parent may have that contribute to this fear including two negative ...
*April 24, 2014*

**early childhood educastion **

what can a teacher do to reinforce the primary relationship between the parent and child and communicate that the teacher does not desire to take the parent's place in the child's life?
*April 24, 2014*

**math**

53.35/5.5 dollars in one hour 9.70 an hour
*March 22, 2014*

**physics/calc**

An anchor weighing 110 lb in water is attached to a chain weighing 2 lb/ft in water. Find the work done to haul the anchor and chain to the surface of the water from a depth of 35 ft.
*March 21, 2014*

**math**

if someone walks 5km in 21 minutes and then 4 km in 39 minutes then whats his average speed
*March 12, 2014*

**Science 6th grade Earth's day and night ANSWERS**

she is soo right i just need to check my anwsers and i got them all correct 8/8!
*March 12, 2014*

**economics**

I think that the answer is 2*sqrt(1000)
*March 12, 2014*

**Physics**

Find Us=1/2k(deltax)^2 =1/2(180)(.15)^2 =2.025 This is spring potential energy. This must have been conserved from kinetic energy. Therefore Us=K=1/2mv^2 2.025=1/2(.195+.005)(v^2) v=4.5 m/s This is explains the time that the bullet is imbedded in the wood. To find the speed of...
*March 11, 2014*

**Educational tech (Please check my answers)**

pacman is correct
*February 25, 2014*

**Chemistry**

How does Le Chatelier's principle explain the result you obtained when you add HCL to a suspension of Ca(OH)2 in water? Where the result was, precipitate dissappeared and an increase in temperature resulted.
*February 24, 2014*

**ss --- check my work!!!**

got 100% thanks lolzypops!
*February 24, 2014*

**ss --- pls check my work!!!**

they are right 100%
*February 18, 2014*

**chemistry**

What is the molality of a solution composed of 28.4 g of methanol CH3OH and 250 g of water
*February 18, 2014*

**trig**

Given csc theta= 4, cot theta < 0 Find the exact values of cos theta and tan theta
*February 11, 2014*

**social stud. quiz --- check my answers!!!**

lolypops is roght
*February 11, 2014*

**math**

number nine is B
*February 3, 2014*

**Science....**

true #2
*December 14, 2013*

**History**

Europeans were drawn in to sub-Saharan Africa in their quest for? a. gold and diamonds. b. diamonds and slaves. c. gold and slaves. d. slaves only. I can't find the correct answer. Please help! I believed it was gold and slave but it is not an option.... or is it c?? what ...
*December 14, 2013*

**History**

All are countries that were prominently Catholic in the 1500's and remain so today except? Spain France Italy Netherlands --- From my research, I see that Spain and Italy's main religion is Catholic. So I assume those two are not it. But I am confused on France and ...
*December 13, 2013*

**science**

You know some people irl name is dick...
*December 13, 2013*

**trig**

Juana and Diego Gonzales, ages six and four respectively, own a strong and stubborn puppy named Corporal. It is so hard to take Corporal for a walk that they devise a scheme to use two leashes. If Juana pulls with a force of 23 lbs at an angle of 18Â° and Diego ...
*December 12, 2013*

**English **

It is very general question. I am supposed to write 2,000 words analytical essay but my teacher told me based on my topic I need to write it in journal entry with only intro being 200 words. When I hear "journal entry", it is not the same as an essay. Do you think ...
*December 9, 2013*

**Math Homework**

Hello I need help with word problem. Coffee shop sells small and large coffee in one day they sell 508 cups of coffee. IF they sell 3 times as many large cups of coffee as small cups of coffee, How many of each size coffee's does the shop sell in a day?
*December 7, 2013*

**English **

I have hard time understanding this wordings :( Turner thesis* by about a hundred years: the myth of the American west did more than anything else to shape the American character. Civilization by its very nature takes away our freedom, but as Americans we can always find ...
*December 3, 2013*

**Geometry**

The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.
*December 2, 2013*

**Geometry**

The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.
*December 2, 2013*

**Geometry**

The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.
*December 2, 2013*

**Geometry**

The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.
*December 2, 2013*

**Geometry**

The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.
*December 2, 2013*

**Statistics 1**

10
*December 1, 2013*

**Bio**

A______ is a tentative, testable explanation for an observed phenomenon. I am confused with hypothesis and theory. But my guess is hypothesis. is this true? or am I wrong?? thanks
*November 28, 2013*

**Bio**

What type of polysaccharide is the main source of fiber in our diet? My guess was cellulose. Is this correct?
*November 28, 2013*

**Math**

There were 7 times as many marbles in Box A as in Box B. After Joyce transferred 294 marbles from Box A to Box B, both boxes had the same number of marbles. How man marbles were there in Box A at first.
*November 20, 2013*

**Statistics**

57.14%
*October 28, 2013*

**Science- DrBob222**

100 % she is right
*October 26, 2013*

**Science- Radioactive Dating**

100% love yalll! avery is wrong it is a b b d trust me!100% i got
*October 10, 2013*

**math**

suppose 3 students change their vote from math to science .describe how the frequency table would change
*October 9, 2013*

**Science**

they were right 100%
*October 8, 2013*

**Math**

Its a big gigantic X . Thats the diagram. Its a vertical angle
*September 29, 2013*

**Math**

So im told to find the value of each variable. It's a X. One side equals 3xº and the other side says (80-x)º 3x=80-x 4x=80 x=20 As you can see the value I got was 20. But in another question it tells me to find the measure of the labeled angles. How do I do that?
*September 29, 2013*

**Algebra HELP!!**

Find the measure of each angle. Angle A is half as large as its complement angle B
*September 29, 2013*

**math**

2x-6/3=-2
*September 24, 2013*

**Physics**

36 seconds
*September 22, 2013*

**Chemistry**

A solution is made by mixing 90.6 g of magnesium sulfate heptahydrate with 2320.0 g of water. 690.00 mL of the solution has a mass of 745.20 g. 1. What is the molarity of the magnesium sulfate solution? 2. What is the molarity of the magnesium ion? 3. What is the molality of ...
*September 11, 2013*

**Math**

A second hand Furniture store buys sofas with a list price of 9,500. IF the wholesaler offers trade discounts of 10/20/30, find the single equivalent discount.
*August 31, 2013*

**math**

In the standard (x,y) coordinate plane, the graph of (x + 3)2 + (y + 5)2 = 16 is a circle. What is the circumference of the circle, expressed in coordinate units?
*August 14, 2013*

**Math- Urgent**

Thank You so much the link was helpful and I found my answer :-)
*August 13, 2013*

**Math- Urgent**

What are the angle relationships formed when a third line intersects two parallel lines?
*August 13, 2013*

**Math- Urgent**

Yay!! Thank you so much Mrs. Sue you really helped me!
*August 12, 2013*

**Math- Urgent**

Oh. That makes more sense. Thank you. I have four more problems so I will work one more out so you could check it. -11=v/2-6 Add 6 to each side -11+6=v/2-6+6 -5=v/2 -5x2=v v=-10 Is this correct Mrs. Sue?
*August 12, 2013*

**Math- Urgent**

Okay. 3=r/16+4 My teacher told me to cross multiply so: 16x4=64 Then I get lost because I don't know the next step except to subtract three from both sides which gives you r/16=43.
*August 12, 2013*

**Math- Urgent**

Solving Equations 3=r/16+4 What does r equal? Please show all work.
*August 12, 2013*

**Math- Urgent**

Thank You
*August 12, 2013*

**Math- Urgent**

Solving Equations -7+b/15=-6 What does b equal? Please show all work.
*August 12, 2013*

**Physics**

Charge A has a charge of +2C. Charge B has a charge of -3C and is located 1 meter to the right of A. Charge C is located 1 meter to the right of Charge B and has a charge of -1C. If a fourth charge (Charge D) is placed 4 meters to the right of Charge B, how much charge must it...
*August 8, 2013*

**Calculus**

A fence 5 feet tall runs parallel to a tall building at a distance of 2 feet from the building. We want to find the the length of the shortest ladder that will reach from the ground over the fence to the wall of the building. Here are some hints for finding a solution: Use the...
*July 17, 2013*

**Calculus**

Find the positive value of x which satisfies x = 4.3cos(x). Give the answer to six places of accuracy. Remember to calculate the trig functions in radian mode
*July 17, 2013*

**Calculus**

the first two are wrong
*July 17, 2013*

**Calculus**

The equation 10(x-1)(x-2)(x-3) = 1 has three real solutions a<b<c where a = , b = , and c = . Enter your answers with at least six correct digits beyond the decimal point. Hint: Ask what the solutions are if the right hand side is 0 instead of 1, and use Newton's ...
*July 17, 2013*

**MATH**

A data set has the following points: (0, 2), (4, 1), (6, 0) The slope of the linear regression line is -0.32. Find the y-intercept of the linear regression.
*July 11, 2013*

**Physics**

anyone for 8
*June 15, 2013*

**Steve **

6 + 10 = 16 ***
*June 10, 2013*

**Steve **

where does 6 + 10 = 18 come from ?
*June 10, 2013*

**physics**

Three objects of same heat capacity with temperature T1=200 K, T2=400 K and T3=400 K exchange heat with each other. They are isolated from the rest of the universe. Find the highest possible temperature one of them can reach in kelvin.
*June 4, 2013*

**math**

june5
*May 24, 2013*

**language**

the - definition of glommy is dismal or depressing is it denotative
*May 24, 2013*

**pyhsic question for count iblis**

iblis got the problem right. for those trying to use jiskha to cheat on the brilliant problems, there was a mistake made in the acceptable answers for this week's question.
*May 22, 2013*

**Physics**

how did you get 1.68?
*May 20, 2013*

**physics**

A car with a mass of 1000kg is travelling at a constant velocity. The force from the engine is 200Newtons. Calculate the acceleration of the car using the formula f=ma. How long will it take this car to travel 0-60 mph (n.b. 1mph = 0.45m/s)
*May 16, 2013*

**Physics**

formula for Q#8 part 1 or answer for α=84∘?
*May 11, 2013*

**math**

find the missing side of the triangle b=2.1 c=29
*May 6, 2013*

**Physics**

A massless spring, with K=425 N/m, is hung vertically with the bottom end of the spring at position Y.i. A 3.50 kg mass is attached to the bottom of the spring and allowed to fall and oscillate. A) How far below Y.i does the mass fall before coming momentarily to rest and ...
*May 1, 2013*

**Physics **

The planet Tralfamador is a planet of mass M and radius R, and very thin atmosphere (neglect air resistance). A magnetic rail gun has been mounted on the surface of Tralfamador at the North pole. A projectile of mass m is fired from the magnetic rail of gun with an unknown ...
*May 1, 2013*

**Physics**

Some communication satellites are put into a circular geosynchronous orbit in which the satellite remains above a certain position on the earth's equator as it orbits. Such a satellite would always be in the same position in the sky as seen from the transmitting or ...
*May 1, 2013*

**math**

4 o'clock am on Tuesday
*April 30, 2013*

**math**

there is a 20% chance that it will snow on tuesday and a 50% chance that it will snow on Wednesday. what is the probabilty that it will snow on either day?
*April 28, 2013*

**chemistry**

if the amount of radioactive iodine-123 in a sample decreases from .400g to .100g in 26.2 hours, what is the half-life of iodine-123
*April 18, 2013*

**chemistry**

You can look them up in a chart. Try going to engineeringtoolbox website. They have a very useful chart of the specific heat of metals
*April 16, 2013*

**chemistry**

Delta (triangle) E is the change in internal energy. E(final)-E(initial) 25-12= 13 = E(final) 13-25= -12kj= Delta (triangle)E
*April 16, 2013*

**English**

so what is the correct answer for question 1?
*April 16, 2013*

**Quantum Physics**

C'mon @cheers!! get some rest :) 5A is not (0,-1), or (0,1/sqrt(K)) or (0,-1/sqrt(N)) xD It must be something very close to it... I think the answer is translating the grover algorithm to a Bloch Sphere and see how it moves around the surface :) At least, that is what 5B,c...
*April 16, 2013*

**Quantum Physics**

wow! Strange behaviour @cheers xD Nevertheless good news for 5C :D Now, only 5A remains behind the Fortress of Solitude...
*April 16, 2013*

**Quantum Physics**

5A is not -1/sqrt(N) or any combinations with minus sign.
*April 16, 2013*

**Quantum Physics**

Ok, 5C is 1/sqrt(K) for both of them. I cannot figure out what is 5A... :(
*April 16, 2013*

**Quantum Physics**

Hi PhysTech, I am reading an article from twistedoakstudios(at)com in /blog/Post2644_grovers-quantum-search-algorithm and doing some calculations... Seems cyclic, in a geometric view.
*April 16, 2013*

**Quantum Physics**

Hi! I have just done 5B: ay=-1, ax=0, so, cheers and PhysTech, it must something about a cycle of the states from m-2, m-1, m, m+1, m+2
*April 16, 2013*

**math**

Bleh
*April 14, 2013*

**algebra.. PLEASE help me!!**

jj
*April 11, 2013*

**physics**

A plastic rod has been bent into a circle of radius R = 8.80 cm. It has a charge Q1 = +4.60 pC uniformly distributed along one-quarter of its circumference and a charge Q2 = -6Q1 uniformly distributed along the rest of the circumference. Take V = 0 at infinity. (a) What is the...
*April 4, 2013*