Sunday

November 23, 2014

November 23, 2014

Total # Posts: 289

**physics- energy and work**

A 47.6-kg diver steps off a 10.82 m high diving board and drops straight down into the water. If the diver comes to rest 5.3 m below the surface of the water, determine the average resistance force exerted on the diver by the water. What is the total displacement of the diver?...
*November 12, 2014*

**physics- energy and work**

To push a 33.0-kg crate up a frictionless incline angled at 27.0° to the horizontal, a worker exerts a force of 388 N parallel to the incline. The crate moves a distance of 4.10 m. What work is done on the crate by the worker? What work is done on the crate by the weight ...
*November 12, 2014*

**Physic energy conservation**

A 5 kg mass attached to a spring passes its equilibrium point moving at 390 m/s. If the spring constant is 1450 N/m, what is the maximum displacement of the spring from its equilibrium position?
*October 31, 2014*

**physics**

A ball is dropped from the top of a building. The balls fall 3 times farther during its last second of freefall than it did during its third second of freefall. The ball fell 4.9 meters during its first second, how tall is the building and how much time is the ball in the air...
*October 25, 2014*

**Physics**

Two steam locomotives are approaching each other, each at 30 mi/hr, heading for a sure head-on collision. A rhinoceros beetle, who flies with a constant speed of 40 mi/hr, leaves the front of the first locomotive when the engines are just 2.000 miles apart, and flies to the ...
*October 15, 2014*

**college algebra**

Try (x+10)(x)=7200.
*September 6, 2014*

**Math :)**

Oh okay thank
*August 8, 2014*

**Math :)**

Can you explain it?
*August 8, 2014*

**HELP ME PLEASEEEE**

I really need help
*August 8, 2014*

**Math :)**

i really NEED HELP!
*August 8, 2014*

**Math :)**

Amy can finish the homework in h hours (h>2), what fraction of the homework does she finish in 2 hours?
*August 8, 2014*

**chemistry**

Which of the following are single replacement reactions? Choose all that apply. Question 1 options: NaHCO3(s) + HCl(aq) → NaCl(aq) + CO2(g) + H2O(l) Zn(s) + 2 HC2H3O2(aq) → Zn(C2H3O2)2(aq) + H2(g) N2(g) + 3 H2(g) → 2 NH3(g) 2 AgNO3(aq) + Cu(s) → 2 Ag(s...
*June 6, 2014*

**MATH**

i have prblm in mths
*March 24, 2014*

**College Physics**

F*sin(35) * 4.5=90*9.8*4.5/2 Then solve for F.
*March 10, 2014*

**science**

i think is....(D)
*February 25, 2014*

**science**

which of the following body systems does NOT rely on the autonomic nervous system to stimulate involuntary events? A. Skeletal System B. Digestive System C. Circulatory System D. Respiratory System
*February 25, 2014*

**Language arts**

thanks...
*February 13, 2014*

**math**

a box can holds 4 rows of 5 cubes in its first layer which expression should i use to get my answer
*February 12, 2014*

**math**

no*
*January 30, 2014*

**math**

I no. I was thinking it might have been the right answer, but I wasn't 100% sure
*January 30, 2014*

**math**

Omg see, I knew I wasn't right lol
*January 30, 2014*

**math**

I think it's $765.00. Not 100% sure though
*January 30, 2014*

**ecosystems**

Hi, can someone help me? What land biome has the lowest humidity? I guess Tundra. A tundra if I'm not mistaken. There were 4 answers: tundra temperate forest grassland rainforest
*January 30, 2014*

**Math**

OOPS!! XD Sorry, lol! Ms. Sue knows EVERYTHING! :D
*January 22, 2014*

**Math**

Change them all into percents.
*January 22, 2014*

**Math**

76%,0.748,11/16
*January 22, 2014*

**math**

three plus variable
*January 22, 2014*

**Phys/Ed**

My Answers: 1-coordination,2-agility,3-her agility will likely improve. 4-power of the recovery stroke.5- yoga poses and skills. 6-stick handle the ball to a cone and shoot from that designated spot.7-extending their arms and maximizing the bat speed upon contact.8-sitting ...
*January 22, 2014*

**physics**

A car accelerates from 0m/s to 51m/s with a displacement of 75 m. What is the car's acceleration
*December 18, 2013*

**physics**

A car accelerates from 0m/s to 51m/s with a displacement of 75 m. What is the car's acceleration
*December 18, 2013*

**Geometry **

1. If ΔRST symbol ΔNPQ, then RT line is congruent to _____. (1 point) line NP line NQ line PQ line QP 2. Given RST NPQ, RT = 7x – 5, NQ = 5x + 11, find the length of RT and of NQ. (1 point) 8 51 40 56 3. Which of the following statements is true about the ...
*December 5, 2013*

**Science**

its also from conections
*November 6, 2013*

**math**

How is testing a conjecture like finding a statement true or false? How is it different?
*October 28, 2013*

**Physics**

8.01 course ah?
*October 6, 2013*

**English**

No there not all the same, the verbs are a bit different. The similar sentence to 1) is 2)because observing is watching's synonym.
*September 22, 2013*

**chemistry**

what is the name of reaction for 3C2H2--> C6H6?
*September 22, 2013*

**MATH**

104
*August 15, 2013*

**work**

The equation x^2+(y-5)^2=64 models the boundary on a local map for which Darren can hear his friend Tom on his two-way radio when Darren is at home. How far (in miles) can Tom walk from Darren's home and still be heard?
*May 23, 2013*

**Math**

Winnie can use up to 10 coupons when buying a box of DVDs. Each coupon is worth $3. She bought a box of DVDs for $56 less the value of her coupons. a)choose a variable to represent the number of coupons. b)Write an Algebraic expression that describes the amount Winnie paid for...
*May 15, 2013*

**English**

it really did help thanks....
*April 28, 2013*

**math**

Bibi wants to send invitations to some of her friends to come to her birthday party. She has contact information for 37 friends stored on her phone, but she only wants to invite 21 of those people to her party. She tries to send out a message to the 21 people, but her phone ...
*April 21, 2013*

**algebra 1**

is the last term a prefect square 24y if so factor it
*April 18, 2013*

**algebra 1**

3) why is it sometmes 4) idk
*April 17, 2013*

**algebra 1**

can you help me this
*April 17, 2013*

**algebra 1**

3) for any factorable trinomial x^2+bx+c, will the absolute value of b sometimes,always, or never be less than the absolute value of c? explain idk 4) give an example of a trinomial that can be factored using the factoring techniques presented. then factor the trinomial. idk 5...
*April 17, 2013*

**algebra 1 help**

ok thank you
*April 17, 2013*

**algebra 1 help**

wait so the answer for 1)=-18 and 18
*April 17, 2013*

**algebra 1 help**

so thats the answer
*April 17, 2013*

**algebra 1 help**

thats it that was easy and 2*-4 1*-8 -1*8 -2*4
*April 17, 2013*

**algebra 1 help**

1,19
*April 17, 2013*

**algebra 1 help**

for 1) i did this k^2 - 4(1)(-19) = n^2 where n is any integer. k^2 + 76 = n^2 k = 18 and k = -18. 2) (-8)^2 - 4(1)(k) = n^2 where n is any integer. 64 - 4k = n^2 so k = 12 and k = 15.
*April 17, 2013*

**algebra 1 help**

find all values of k so that each polynomial can be factored using integers 1) x^2+kx-19 2) x^2-8x+k, k>0
*April 17, 2013*

**chemistry**

An automobile tire contains air at a pressure of 200. kPa and 25°C. The tire and its air heat up during traveling. If the pressure increases to 250. kPa but the volume remains the same, what is the temperature of the air inside the tire?
*April 9, 2013*

**Language Arts**

whats the answer
*February 28, 2013*

**math**

A RECTANGLE HAS A WIDTH OF X CENTIMETERS AND A PERIMETER OF 8X CENTIMETERS. A SQUARE HAS SIDES OF LENGTH 1/4 THAT OF THE RECTANGLE A) FIND THE LENGTH OF THE RECTANGLE B) FIND THE PERIMETER OF THE SQUARE C) FIND HOW MANY CCENTIMETERS GREATER THE RECTANGLE IS THAN THE SQUARES ...
*February 25, 2013*

**math**

1/2y = 9x + 5 3x = 6 - 1/3y
*February 22, 2013*

**math**

Kevin plotted a linear equation on a graph with 18 as the y-intercept. Which of the following could be the equation plotted by Kevin?
*February 22, 2013*

**math**

Kevin plotted a linear equation on a graph with 18 as the y-intercept. Which of the following could be the equation plotted by Kevin?
*February 22, 2013*

**math**

Kevin plotted a linear equation on a graph with 18 as the y-intercept. Which of the following could be the equation plotted by Kevin?
*February 22, 2013*

**Geology**

How were divisions of time separated when scientists created the geologic time scale? by the thickness of rock strata by the color of rock strata by the fossils found in rock strata by the location of rock strata
*February 21, 2013*

**English**

it was (A)
*February 19, 2013*

**english**

its either a or b
*February 11, 2013*

**english**

What does Mrs. Frank think of the idea of Peter being Anne’s boyfriend? She is thrilled that Anne will finally have a boyfriend. She doesn’t really care if Anne has a boyfriend. She is uncomfortable with idea that Anne might have a boyfriend.
*February 11, 2013*

**physics**

A particle moves along a circular path over a horizontal xy coordinate system, at constant speed. At time t1 = 4.60 s, it is at point (4.30 m, 6.20 m) with velocity (3.30 m/s) and acceleration in the positive x direction. At time t2 = 13.0 s, it has velocity (–3.30 m/s) ...
*February 8, 2013*

**Math Please it is Urgent!!!**

V-School? i have the same question
*January 23, 2013*

**Government & Politics**

Which of the following statements regarding the case, McClesky v. Kemp (1987), is TRUE? The Court upheld the constitutionality of the death penalty. The Court ruled that the death penalty did not violate the Fourteenth Amendment simply because minority defendants were more ...
*January 22, 2013*

**chemistry**

Use the Method used in H4P2.
*December 14, 2012*

**Chemistry**

That could be the reason. Use the method used in H6P5.
*December 14, 2012*

**Chemistry**

Actually its 443
*December 14, 2012*

**econ**

$163,879.35
*December 10, 2012*

**World Cultures**

What role did Greeks play in the Maurya Empire creation? How did Ashoka develop Maurya power and prestige?
*December 8, 2012*

**PLEASE HELP geometry trapezoid problem please help**

The solution is incorrect. 8 and 10 are the diagonals of the trapezoid, not the sides. The solution is far more complex.
*December 4, 2012*

**science**

Sulfur vapor is analyzed by photoelectron spectroscopy (PES). Measurements determine that photoelectrons associated with the 1st ionization energy of sulfur move with de Broglie wavelength λ=3.591 A˚. What is the maximum wavelength (in meters) of radiation capable of...
*November 17, 2012*

**science**

Titanium (Ti) can be produced by the reaction of metallic sodium (Na) with titanium tetrachloride vapor (TiCl4). The byproduct of this reaction is sodium chloride (NaCl). Calculate the amount of titanium produced (in kg) when a reactor is charged with 61.0 kg of TiCl4 and 14.0...
*November 17, 2012*

**science**

Give the value of the 1st ionization energy of beryllium (Be). Express your answer in Joules (J/atom).
*November 17, 2012*

**science**

Estimate the 4th ionization energy of beryllium (Be). Express your answer in Joules (J/atom).
*November 16, 2012*

**Math for Steve**

C B D C B
*November 6, 2012*

**Chemistry**

2C2H6 + 7O2-----> 6H2O + 4CO2
*November 6, 2012*

**AP Psychology**

Why would a neurosurgeon cut the corpus callosum and therefore disrupt left/ right brain hemisphere communication? reduce anxiety attacks and phobic reactions. prevent the spread of epileptic seizures. reduce the incidence of violent behaviors. treat schizophrenia. reduce mood...
*November 1, 2012*

**AP Psychology**

Chlorpromazine is an antipsychotic drug that reduces paranoia and hallucinations by increasing involuntary muscle movements. reducing involuntary muscle movements. dampening responsiveness to irrelevant stimuli. decreasing the availability of norepinephrine. elevating arousal ...
*November 1, 2012*

**Statistics**

A Kansas University research station wishes to investigate if a new variety of wheat is more resistant to a disease than an old variety. It is known that this disease strikes approximately 15% of all plants of the old variety. A field experiment was conducted, and of 120 new ...
*October 26, 2012*

**chemistry**

1. Compare the effects of adding the strong acid & base to the pH of water vs. the acetate and phosphate buffers.
*October 24, 2012*

**Basic Math**

Your MoM
*October 10, 2012*

**Math**

lalalalalalalalalalalalala1a1a1a1a1a1a11a1a
*September 13, 2012*

**math**

Thank you this is not an answer
*August 15, 2012*

**calculus **

Hey I am working on differentiation/quotient rule for this problem...can someone help me? x^2-3/x-2.
*July 1, 2012*

**ELA**

I am very bad in parts of speech so I need help! Find all the verbs in each sentnce 1. We spent a considerable amount of time hiking up the mountain. 2. It was a foolhardy to go over the waterfall. In a canoe. 3. In the carribean waters there are fish of every hue. Thanks in ...
*June 18, 2012*

**Physics**

1.) flux = E * A * cos(35) 2.) flux = E * A * sin(35)
*June 9, 2012*

**science**

thank you sooooo much Ms.Sue
*May 24, 2012*

**TO M.S Sue**

this was just a guess can you explain why ms.sue
*May 24, 2012*

**science**

is it reproduction???
*May 24, 2012*

**science**

Which of the 6 characteristics of living things is important for a survival of species?
*May 24, 2012*

**ela teacher**

by he way what advice can you give so i could do better later
*May 20, 2012*