Friday
July 29, 2016

Posts by Sam

Total # Posts: 4,871

Geometry
A fish tank with a rectangular base has a volume of 4,320 cubic inches the length and width of the tank are 15 inches and 12 inches .find the height in inches of the tank
March 15, 2016

Math
the answer is 13 &1/4
March 15, 2016

Math
Perform the operation. 8 & 1/2 +5 & 1/8
March 15, 2016

Math
It is A trust me
March 15, 2016

Social Studies
1. Which statement best describes the government of Canada? (1 point) The monarch of Britain has total control over Canada. The Canadian parliament is ruled by the United States. Canada has complete power over its own government. The prime minister is the monarch of Canada. 2...
March 14, 2016

Life orientation
Identify three courses or study fields I'm interested in following after grate 12 write them down and in order of preferences provide two reasons of each choice
March 13, 2016

Physics
A pool ball of mass 100g and velocity [5,-4]m/s collides with a stationary pool ball of the same mass. After the collision, the pool balls have velocites [2,-3]m/s and [3,-1]m/s. Is the collision elastic? Explain your answer.
March 11, 2016

Physics
A pendulum bob has a mass of 1kg. The length of the pendulum is 2m. The bob is pulled to one side to an angle of 10degree from the vertical. What is the velocity of the pendulum bob as it swings through it's lowest point? What is angular velocity?
March 10, 2016

Physics
A ball of mass 500g is kicked into the air at angle of 45degree. It reaches a height of 12m. What was it's initial velocity?
March 10, 2016

science
If a sheet of Tarpaulin (350gsm) 5m high 7m wide at a pitch of 45% with wind speed of 60mph what will be the upwards force (lift force)in Kg?
March 10, 2016

MAth
projectile is fired from the ground s=0 ft with initial speed of v=800 ft/sec at an angle of elevation 30 degrees State the vector function the projectile follow,projectile initial velocity vector,vector function,projectile speed function
March 10, 2016

Math
Look for a pattern and find the next two numbers in the sequence and then write a general version of the nth term. 1 2 3 4 5 6 7 8 n 18 30 42 54 66 78 I can recognize the pattern as being + 12 so under 7 my answer would be 90 and under 8 my answer would be 102, but how do I ...
March 9, 2016

Math
Look for a pattern and find the next two numbers in the sequence and then write a general version of the nth term. 1 2 3 4 5 6 7 8 n 18 30 42 54 66 78 I can recognize the pattern as being + 12 so under 7 my answer would be 90 and under 8 my answer would be 102, but how do I ...
March 9, 2016

worldhistory 6th grade
it is c trust me i took then test
March 8, 2016

math.
Write a function of x that performs the following operations: Raise x to the ninth power, multiply by 5, and then add 6. y=f(x)= (b) Find the inverse to the function you found in part (a). x=g(y)=
March 8, 2016

physics
Consider the system shown in the diagram. The pulley is a uniform cylinder with mass m3 = 0.60 kg and radius R = 4.0 cm, the other two masses are m1 = 2.5 kg and m2 = 1.0 kg, and á = 30o. Assume the rope is massless, there is no slipping of the rope on the pulley, and ...
March 8, 2016

Chemistry
Concentrated hydrochloric acid is 12 M. What is the molarity of an HCl solution prepared by diluting 10.0mL of concentrated acid to a total volume of 250.0mL?
March 8, 2016

Chemistry
How much concentrated 12 M HCl is needed to prepare 200 ml of a 2.5 M solution?
March 7, 2016

Social Studies
Is it D
March 7, 2016

Social Studies
I think it is the 3rd one i am not forsure
March 7, 2016

Social Studies
Why did democracy develop during the Roman Republic? Members of lower social classes began to demand representation in government. Romans wanted to prevent one leader from gaining too much power. Romans wanted to model their system of government after ancient Athens. Members ...
March 7, 2016

Social Studies
thank you
March 7, 2016

Social Studies
Which of the following is a example of how the government of the roman republic contribute to the democratic? It was based on a Dictatorship It was based on a tripartite system It was based on a triumvirate system It was based on a written set of laws I think it is the second one
March 7, 2016

math
7ft board is to be cut into three​ pieces, two​ equal-length ones and the third 99 in. shorter than each of the other two. If the cutting does not result in any length being​ lost, how long are the​ pieces?
March 6, 2016

Physics
A soccer ball of mass 550g is at rest on the ground. The soccer ball is kicked with a force of 108N. The player shoes is in contact with the ball for 0.3m. What is KE of the ball? What is the ball's velocity at the moment it loses contact with the soccer player's shoes?
March 5, 2016

Math
JASON DRIVES 50 MI TO A TRAIN and then continues his trip with a 210 mi train ride. the car travels 20 mph slower than the train. if total travel time is 4 hr, find the average speed of the car and the average speed of the train.
March 2, 2016

math
Given that f(x)=4x−3 and g(x)=4−x2, calculate f∘g(x)= g∘f(x)= THANKS
March 1, 2016

Physics
Rosie (mass 41 kg) pushes a box with a horizontal force of 140 N (31.472 lb) at a speed 25 m/min. A. What is Rosie’s power output? Answer in units of W. B.What energy is produced by a 300 W lightbulb lit for 4.1 hours? Answer in units of J
February 29, 2016

Physics
Zak, helping his mother rearrange the furniture in their living room, moves a 42.3 kg sofa 7.2 m with a constant force of 17 N. A. What is the work done by Zak on the sofa? Neglect friction. Answer in units of J. B. What is the average acceleration of the sofa? Answer in units...
February 29, 2016

physics
A light beam in air strikes the surface of a liquid at an angle 23.6 degrees from the normal. The angle of refraction in the liquid was measured to be 15.8 degrees, calculate the index of refraction for the object? calculate the speed of light in the object?
February 29, 2016

Social Studies
I think it is B
February 29, 2016

Social Studies
How did this law lead to the development of democratic principles? 6-9. When the litigants settle their case by compromise, let the magistrate announce it. If they do not compromise, let them state each his own side of the case, in the comitium of the forum before noon. ...
February 29, 2016

Physics
Four masses (2kg 3kg 1kg and 2kg) are arranged on a square of side 1.2 m. What is the moment of inertia if the axis of rotation is at the center of the square? What is the moment of inertia if you make the axis of rotation through mass 2kg (this mass cannot contribute to ...
February 28, 2016

Maths
Rs means Rupees (meant for Indian currency)
February 28, 2016

Maths
We have Rs.100/-.If we spend Rs.100/-and balance is Rs.102/-,show how is Rs.2/-extra Spent Balance Day 1 Rs 40 Rs 60 Day 2 Rs 30 Rs 30 Day 3 Rs 18 Rs 12 Day 4 Rs 12 Rs 00 -------- -------- Total Rs 100 Rs102......?
February 28, 2016

math
suppose a>0 and n is a positive interger. is (1/a)^-n = 1/a^-n ? explain your answer
February 28, 2016

World History
c. He wanted to rid Italy of the Bourbon monarch.
February 25, 2016

statistics
5 students go to school one of which is known to be late; in fact he is late 22% of the time. What is the probability that he will not be late for school.
February 24, 2016

Physics
A 20.0 m long uniform beam weighing 800 N rests on walls A and B, as shown in the figure below.(a) Find the maximum weight of a person who can walk to the extreme end D without tipping the beam.(b) Find the forces that the walls A and B exert on the beam when the same person ...
February 24, 2016

Physics
A sphere of mass 85kg is 12m from a second sphere of mass 65kg. A)what is the gravitational force of attraction between them?
February 22, 2016

Physics
Sally has a mass of 50.0kg and earth has a mass of 5.98X10^24kg. The radius of earth is 6.371x10^6m. A)What is the force of gravitational attraction between sally and earth? B)What is Sally's weight?
February 22, 2016

Math
Yay!
February 22, 2016

Math
Profit
February 22, 2016

Math
Income
February 22, 2016

Math
it 914 but is it profit or loss?
February 22, 2016

Math
A company reports the following income and expenses for a three-month period. What is the company's total profit or loss for the three month period? Great Reads Book Store Month Income Expenses ------------------------------------ June $12,458 - $10,968 July $10,396 - $10,...
February 22, 2016

math
So its A
February 22, 2016

math
which expression represents 5 less than y? A. y-5 B. 5-y C. y/5 D. 5y-1
February 22, 2016

Math
A round cake pan that is 2in deep and has a 7in diameter, plus a 6in by 9in rectangular cake pan that is 2in deep. Which of these pans has the larger volume and why?
February 22, 2016

Chemistry
For the reaction between ammonia and hydrochloric acid to produce ammonium chloride; What volume of ammonia is used (at 20 Celsius and 760mmHg) if 12.5gmof ammonium chloride are produced in the reaction? How many molecules of ammonia does this represent?
February 21, 2016

Chemistry
If the density of a gas is 1.2g/L at 745.torr and 20 Celsius, what is the molecular mass?
February 21, 2016

Chemistry
What is the density of NH3 at 800torr and 25 Celsius?
February 21, 2016

Chemmistry
Use this percentage to calculate the mass of fluorine (in g) contained in 54.0 g of copper (II) fluoride.
February 21, 2016

Chemistry
A 10.3g sample of an elemental gas has a volume of 58.4L at 758torr when the temperature is 2.5 C. Determine the identity of the gas.
February 21, 2016

math
the volume of a sphere is 4/3 pie radius squared. given that pie is 3.142 and radius is 7.3 calculate the volume of the sphere
February 20, 2016

CHEMISTRY!!!! HELP
3.) Calculate the mass of oxygen gas that can be produced in the decomposition of 5.55 g of silver oxide. This is what I did but is it right?... I need help with a few more btw to double check if i'm doing these right. So here is what I did: First: balance the equation 2 ...
February 17, 2016

ChemistryHELP.PLEASE... TEST SOON
TEST VERY SOON
February 17, 2016

Chemistry
Continue #2: So it says to : Calculate the mass of ammonia, NH3, that can be produced. Can someone explain how to derive to the answer? Please
February 17, 2016

Chemistry
1.) what mass of zinc is needed to completely react with 4.00 g of silver nitrate? 2.) If excess ammonium sulfate reacts with 22.5 g of calcium hydroxide according to the following unbalanced chemical equation: (NH4)2 SO4 + Ca (OH)2 → CaSO4 + NH3 + H2O Now, how do I go ...
February 17, 2016

Chemistry Help please! (:
Calculate the mass of oxygen gas that can be produced in the decomposition of 5.55 g of silver oxide. This is what I did but is it right?... I need help with a few more btw to double check if i'm doing these right. So here is what I did: First: balance the equation 2 Ag2 O...
February 17, 2016

Math
Thank you manny
February 16, 2016

Math
Find the difference. -24 - 5 =? A. -29 B. 29 C.-19 D.19
February 16, 2016

Math
Find the difference. -14 - (-16) =? A. 30 B. -30 C. 2 D.-2
February 16, 2016

Math
$7
February 16, 2016

Math
I think it is B
February 16, 2016

Math
which of the following is equivalent to (-2) - 5? A. -2 + (-5) B. -2 + 5 C. 2 +(-5) D. 2 - (-5)
February 16, 2016

environmental engineering
A lake receives 8 m3/s of inflow containing 0.3 mol/m3 of a chemical. The chemical reacts with a first order rate constant of 0.01 h-1. The outflow from the lake is also 8 m3/s. Assume there was no chemical in the lake at the beginning and volume of the lake is 106 m3. What ...
February 10, 2016

environmental engineering
Pesticide is applied to a 10 ha (hectare) field at an average rate of 1 kg/ha every month. The soil is regarded as 20 cm deep and well-mixed. The pesticide evaporates at a rate of 2% of the amount present per day and it degrades microbially with a rate constant of 0.05 day-1. ...
February 10, 2016

Math
Thank you niki
February 10, 2016

Math
Set the numbers from Greatest to least? 15%, 1/8, 0.2, 0.09
February 10, 2016

math
0.065
February 10, 2016

math
What is equivalent to 65%? Choose all the apply. 0.065 0.65 13/20 13/25
February 10, 2016

algebra
The loudness, L L, of a sound (measured in decibels, dB) is inversely proportional to the square of the distance, d d, from the source of the sound. Round to 3 decimal places. A person 15 feet from a jetski, it is 75 decibels loud. How loud is the jetski when the person is 47 ...
February 9, 2016

algebra
The time required to do a job varies inversely as the number of people working. It takes 5hr for 7 bricklayers to build a park well. How long will it take 10 bricklayers to complete the job? (round answer to 1 decimal place)
February 9, 2016

Social Studies
It says it in the (bible) New World Translation of the Holy Scriptures in Act 2:36 You can look at it on j w. o r g ignore the spaces
February 9, 2016

Social Studies
Which key figure in Christianity does this image represent? It is a picture of Jesus tided to a cross A. Peter B. Paul C. Jesus <---- D. God I know that it is Jesus but he never died on a cross, he died on a pole.
February 9, 2016

Social Studies
I think it is D but i am not for sure
February 9, 2016

Social Studies
What influence did the Greek epics written by homer have on roman culture? A. They led Roman historians to question their loyalty to the Roman gods. B. They caused Roman historians to disagree over the origins of Roman culture. C. They inspired Virgil to compose an epic poem ...
February 9, 2016

Reading
Thank you for the poem Ms.Sue
February 8, 2016

Reading
In adventures of Isabel the only one of Isabel's enemies who survives is a? A.the bear B. the witch C. the giant D. the doctor
February 8, 2016

math
Find the projection of u = <-5, 3> onto v = <1, 4>.
February 8, 2016

Pre-cal
For z1 = 4cis (7pi/6) and z2 = 3cis(pi/3), find z1 * z2 in rectangular form.
February 8, 2016

physics (mechanics)
find the constant force necessary to accelerate a car of mass 1000kg from 15m/s to 20m/s in 10s against resistance of 270N ? pls show work (answer is 770N just in case to check) ive been asking this question 4 times still no one answer . someone pls do .
February 7, 2016

Physics
Two capacitor plates are equally and oppositely charged. They are separated by 1.30 cm. An electron is released from rest at the surface of the negative plate and, at the same time, a proton is released from rest at the surface of the positive plate. Where do the electron and ...
February 6, 2016

math
is that a big deal? if it is , then im greatly sorry ....and could someone answer my question pls /display.cgi?id=1454771086
February 6, 2016

math
vf=10*a vf=sqrt(2ad) or 10a=sqrt2ad 100a^2=2*500*a a=10m/s^2 vf=10*10=100m/s
February 6, 2016

physics (mechanics)
find the constant force necessary to accelerate a car of mass 1000kg from 15m/s to 20m/s in 10s against resistance of 270N ? pls show work (answer is 770N just in case to check)
February 6, 2016

Physics
use s= ut +0.5at^2 give 500 = 0(t) + 0.5 (9.8)t^2 t = 10.10s
February 5, 2016

Pre-cal
What is the area of triangle ABC if a = 19, b = 14, and c = 23?
February 5, 2016

Math
Tom has taken 3 tests with an average of 88%. However, Tom really wants an A. To get an A, he has to have an average score of 93%. What score does he need on the final test to get an A? I just don't get it. Can someone walk me through the steps to get to the answer?
February 4, 2016

Physics
A rock climber throws a small first aid kit to another climber who is higher up the mountain. The initial velocity of the kit is 12.8 m/s at an angle of 65.7° above the horizontal. At the instant when the kit is caught, it is traveling horizontally, so its vertical speed ...
February 4, 2016

The Oregon Country Unit 2 Lesson 4
perfect
February 4, 2016

Physics
a crate of weight fg is pushed by a force P on a horizontal floor. (a) the coefficient of static friction is us, and P is directed at angle theta below the horizontal. show that the minimum value of P that will move the crate is given by P=usFgsectheta / 1-ustantheta (b) find ...
February 4, 2016

Math
There are 40 cows and chickens in a farmyard. One quiet afternoon, Lola counted and found that there were 100 legs in all. How many cows and how many chickens are there? thx...
February 1, 2016

Do I have enough time
Oh yea if you have notes and know what you are going to talk about. Just go for it but make sure you get it done earlier next time
February 1, 2016

math
whats sets of number does the number 9/10 have?
February 1, 2016

Science
A storm with winds over 120/km/h that can last several weeks is a? A.Tornado B Hurricane C Jet Stream D Thunderstorm I think its hurricane am i right?
January 29, 2016

Analytical chemistry
The hydrogen sulfide in a 79.168 g sample of crude petroleum was removed by distillation and collected in a solution of CdCl2. The precipitated CdS was then filtered, washed and ignited to create CdSO4. Calculate the percentage of H2S in the sample if 0.122 grams of CdSO4 was ...
January 28, 2016

math
Mr. Dunn estimates he uses 3 gallons of gas over the course of a week. How many miles per gallon does his car get when he drives 105 miles?
January 28, 2016

history plz help
thanks @Reed you helped me look at the article in another perspective.
January 28, 2016

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