# Posts by Sunny

Total # Posts: 291

**Science**

when calculating the heat gained by solution, the total mass will be 108.5 gm not 100gm. Since there was 8.5g of KOH added to water.

**Physics**

A parallel-plate capacitor is constructed of two horizontal 15.2-cm-diameter circular plates. A 1.9 g plastic bead, with a charge of -5.6 nC is suspended between the two plates by the force of the electric field between them. What is the charge on the positive plate?

**Physics**

A small metal bead, labeled A, has a charge of 26 nC . It is touched to metal bead B, initially neutral, so that the two beads share the 26 nC charge, but not necessarily equally. When the two beads are then placed 5.0 cm apart, the force between them is 4.5×10?4 N . ...

**Chemistry **

why the yield of ester is relatively low? suggest modifications which would improve the purity of ester?

**Chemistry**

What's the difference between the pressure of a system and the partial pressures in relation to Le Chatelier's principles? I know that when the pressure of the system is increased, it goes to the side with less moles/particles and when decreased it will go to the side ...

**PHYSICS2, help!**

A string is wrapped around the rim of a flywheel 0.400 m in radius, and a steady pull of 50.0 N is exerted on the cord. The wheel is mounted in frictionless bearings on a horizontal shaft through it's center. The moment of inertia of the wheel is 4.00 kg.m^2 .Calculate the...

**PHYSICS, help!**

A 5 kg block rests on a frictionless horizontal surface. A cord attached to the block passes over the pulley whose diameter is 0.120 m to the hanging block of mass 5 kg. The system is released from rest and the blocks are observed to move 3m in 2.0 s. A. What is the tension in...

**Science**

Define love

**American Government**

1. Relative rights(D) 2.Freedoms that protect people from government (B) 3.To restrict the power of the Bill of Rights (B) 100%

**Language Arts**

1) An argumentative essay should present a clear thesis statement, provide strong evidence to support the thesis, and ______. A: address counterarguments B: repeat main points* C: include digital sources D: gather details 2) According to the Argumentive Essay Portfolio Rubric...

**Science**

Electric bulb is Marked 60 watts 120 volt what is the resistance of filament of bulb

**Chemistry**

How many Cu+2 ions are in 5.33 mol of CuCl2? I did this so far: n-> 5.33 mol Ncu-> ? ions M= 134.45 g =5.33 mol x (602x10^23 ions/ 1 mol) =3.21x10^24 ions

**Physics**

A car of mass 920.0 kg accelerates away from an intersection on a horizontal road. When the car speed is 48.2 km/hr (13.4 m/s), the net power which the engine supplies is 5900.0 W (in addition to the extra power required to make up for air resistance and friction). Calculate ...

**Chemistry**

1.) A closed 5.00 L container is filled with a mixture of 4.00 moles of hydrogen gas, 8.00 moles of oxygen, 12.0 moles of helium, and 6.00 moles of nitrogen. What is the pressure in this container at a temperature of 25 °C? 2.) A closed 5.00 L container is filled with a ...

**Math**

1.C 2.B 3.A 4.C

**Art Help plz!**

B D C C

**Language**

1.(C) African Americans were treated much differently in the North than in the South 2.(D) a group of siblings who learn about the effects of the Civil Rights movement on their family. 3.(D) reject

**Math**

A projectile is launched upward from the ground at an initial velocity of 400 feet per second. During it’s upward flight, the projectile passes a hot air balloon floating at a constant height of 2400 feet. How many seconds later will the projectile pass the hot air ...

**Physics**

W=mg 5x2=[L/2-2] 10x10 L/2=1+2 L=6m

**Math**

The price of a television set on sale is $360. This is two third of the regular price. Find the regular price?

**Math**

Three fifth of the members of a hiking trip club went on the last hiking trip. If 39 people went on the trip how many are in the club? Mathew travels two and one half miles to get to school. This is 3 times the distance that Jennifer travels . How far does Jennifer travel?

**Chemistry**

A mixture of C3H8 and C2H2 has a mass of 2.5 g . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.5 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.

**physics**

If a staircase has five steps each 1.45m high and 1.5m wide. A ball is placed on the top of the staircase what maximum (horizontal) velocity be given to the ball so that it directly hits the lowest plane?

**Math**

(R)-1

**Visual Logic**

Create an amortization schedule to calculate your monthly payments on a car and show the loan balance over time with visual logic? Must include assignment statements, IF statement, loop, array. amount= 20000 interest rate= 2% Pay by= 5 yrs So far i've done monthly payment...

**Language arts**

She is mischievous but feels bad about doing the things she has done.

**English**

C B A D

**Citizenship education**

Define character in six page

**Art**

C B D

**math**

what is moving number of 90

**language arts**

The answers for the second read are C,D,C,B,C

**language arts**

B,D,B,B,A

**physics**

A physics student pulls a block of mass m = 20 kg up an incline at a slow constant velocity for a distance of d = 4.5 m. The incline makes an angle Δ = 30° with the horizontal. The coefficient of kinetic friction between the block and the inclined plane is µk = ...

**L.A**

Maria is correct,thanx

**Language arts**

Anonymous is correct. Make sure your questions match before using any answers, then you won't get anything wrong.

**Math**

Mrs. Monk is wrapping presents . If a roll and a half wraps 5 gifts, if there are 9 same sized presents, how many rolls of paper are needed?

**Math**

Mrs monk rented a truck for 3 days. Enterprise charged her $40. per day plus $.25 per miles. The total charge was $142.75. How many miles did she drive the truck? (1) 411 miles (2) 91 miles (3) 251 miles (4) 571 miles

**Math**

Mrs. Monk rented a truck for 3 days. Enterprise charged her $ 40 per day plus $0.25 per miles. The total charge was $142.75. How many miles did she drive the truck?

**Math**

1/5

**P.E**

LizLiz is correct! Thank you so much. I was struggling with some of these questions

**math**

You must add 75 liters. :)

**physics**

Mrs. Meissner is taking her dog Cooper for a walk. Cooper stops to sniff a tree stump and Mrs. Meissner has to exert a force of 148 N on Cooper's leash (held 35 angle above the horizontal) in order to get him to move 2.0 m away from the tree stump. Calculate the work donw ...

**math can anyone please help ! D:**

does anyone know the answer ?

**math**

a hall charges $30 per person for a sports banquet when 200 people attend. for every 10 extra people that attend, the hall will decrease the price by $1.50 per person. what number of people will maximize the revenue for the hall?

**math**

for what values of k in y=3x+k with the curve y=-x^2-3x+6 intersect the line at 2 points

**math**

why did u multiply the whole thing by "y" for (24-2y)y ?

**math**

24/3 is 8

**math**

arnold has 24m of fencing to surround a garden, bounded on one side by the wall of his house. what are the dimensions of the largest rectangular garden that he can enclose? how do i solve this question please help step by step solutions please

**math**

ok thanks

**math urgent -anyone??**

help please!!!

**math**

what does this question mean : Sketch a graph to show four graphs in each family. a) y=(x-3)(x+6) b) y= (x+1)(x+1)

**MATH ASAP!!**

thankyouuu !!

**MATH ASAP!!**

Rationalize the denominator using the conjugate. 1/1-√7+√5 please show all the steps and explain it

**math**

Rationalize the denominator using the conjugate. 1/1-√7+√5 please show all the steps and explain it i don't get it

**math help ASAP!! please**

i need help asap

**math help ASAP!!**

simplify fully! 3x-2/x+4 = 18-4x/x^2-16 - 3x+2/4-x show all of your steps pleasee !!

**math help**

find the ratio of the volume to the surface area of the rectangular prism shown. L= 4x+8 W= x+2 H= 2x+4 please show all your steps please!!

**Math**

show all the steps when solving the question !!! pleasee

**Math**

a camera's focal length, F, is related to the distance from the subject, S, and the image distanc, I, by the equation 1/S+1/I=1/F Please show all your steps! thanks you

**math help!!**

factor: a^2/36 - b^2/49 show all your steps please!!

**Math**

factor: a^2/36 - b^2/49 show all your steps please !

**math help!!**

factor: 9n^2-25

**physics**

KE = .5 x (m x v^2) so KE = .5 x (.2 * (49.6)^2)

**math**

A specially made pair of dice has only one- and two-spots on the faces. One of the dice has three faces with one-spot and three faces with two-spot. The other die has two faces with one-spot and four faces with a two-spot. One of the dice is selected at random and then rolled ...

**math**

what is the vertex of y=x^2-4 ??

**someone please answer**

if you did read the book were there any biases in it?

**English help!!**

did anyone read the book "The girls" by Lori Lansens??

**english please help!! -anyone?!?!**

help me asap

**english please help!!**

In the book "The Alchemist" -by paulo coelho, how did Santiago's character change? And also what about the Englishman & Fatima.

**science**

1) why are images produced under the microscope reversed & inverted? 2) why does a specimen need to be centered in the field of view on low power before going to high power?

**math-factor**

factor: 2x^2(x-3)+12x(3-x)-18(x-3)

**science-physics**

a ray of light traveling from the air into crown glass strikes the surface at an angle of 30 degrees. what will the angle of refraction be? please help me!! don't ignore this !

**physics**

aww okay but thanks anyways

**physics-can anyone please help mee!!**

help me pleaseee, i don't get it!!!

**physics**

calculate the image positions and magnifications for an object 3cm tall and a mirror of focal length +12 with the object at the following positions: 2.5 f, 2.0 f, 1.5 f, 0.5 f. please help me don't understand it at all. it would be best if you can explain it to me rather ...

**chemistry**

what is a complete and incomplete combustion reaction ??

**math help**

factor: 1) (x+y)^2 - (a+b)^2 = [(x+y) - (a+b)] [(x+y) + (a+b)] = [x+y-a-b] [x+y+a+b] 2) 6x^4 - 6 = 6(x^4 - 1) = 6(x^2-1)(x^2+1) Is this right?

**math help!! ANYONE?!?!**

someone please help!!!!

**math help me pleasee!!**

help mee with the two questions, i don't get it and i have a test tomorrow!

**math help!!**

i also need help with this question factor: (x+y)^2-x-y

**math help!!**

Factor: 2(2x^2-x)^2-3(2x^2-x)-9

**math help!!**

okay thankyou so much!! :-)

**math help!!**

factor: (x^2+5x)^2 - 36 and (a-b)^2 - (c-d)^2 show the steps pleasee!

**math-still confused**

the answers at the back of the textbook say that the answer is (a-b+c-d)(a-b-c+d) i don't get it :$

**math help!**

how did you get that??

**math help**

factor: (a-b)^2 - (c-d)^2

**math help ASAP!!**

factor: 2m^3 - 7m^2n - 15mn^2

**math**

thankyou!

**math check my answer!**

no the answer is -5(2x-y)(2x+y) ^is that right??

**math**

is it -20x^2 + 5y^2 = -5(4x^2-y^2)

**math**

factor: -20x^2 + 5y^2

**math**

ohh ok thanks! :)

**math i don"t get it**

why does (y-z) turn to (y+z) ??

**math-help!!**

oh okay that's for the first question i think but what about this question x^2-(y - z)^2 ??

**math-help me please!!**

^is that right??

**math**

is the answer x^2 - (y - z)^2 = [x- (y-z)] [ x+ (y-z)] = (x-y-z) (x+y-z)

**math**

so how do i do x^2 - (y - z)^2

**math**

how do you factor: (a - b)^2 - c^2

**english**

when is a semi colon used?

**english anyone?? Ms.Sue? is this right?**

anyone help asap