Friday
December 2, 2016

Posts by a

Total # Posts: 892

Physics
You set up a ramp with a length of 1.15 m, raising one end to a height of 0.4 m. You then roll a 0.300 kg toy car down the ramp, starting at rest a)What is the change in potential energy of the toy car rolling down this ramp? b)If all of that energy is changed into kinetic ...
November 30, 2016

CHEM 1301
A sample of propane, C3H8, contains 12.2 moles of carbon atoms. How many total moles of atoms does the sample contain?
November 30, 2016

PHYSICS PLEASE HELP ME
If I am the only one who doesn't get this I'm !@#$%^&ed
November 22, 2016

Math Quadratic Functions
Quadratic equation always do what to their inputs? How can I answer this question..?
November 19, 2016

english 101
how would you write a thesis statement on adoption
November 17, 2016

Pre-cal
Solve (in radians) sec x = 2csc x When I work it out, it gets to 2cot x - 1 = 0 cot x = 1/2 Would it be ok to use tan^-1 (2) ? I must demonstrate it with a graph as well... would the line go through Q I/III or II/IV ? Thank you!
November 15, 2016

Chemistry
In this case, your 12.5 mg O2 would produce 5.86 mg NO, and your 21.4 mg N2 would produce 11.5 mg NO. Therefore, O2 would be your limiting factor and this would produce 11.5 mg NO (or 0.0115 g NO) If you need work, let me know
November 15, 2016

Chemistry
Do you have to take limiting factors into consideration yet?
November 15, 2016

Physics
A ball hanging from a twisted string is released from rest, and spins around in a circle (reversing direction periodically). The angular velocity of the ball is given by: 𝜔(𝑡)=(16 𝑟𝑎𝑑/𝑠) sin[(𝜋/5 𝑟𝑎&#...
October 21, 2016

Physics
As part of a daring rescue attempt, the Millennium Eagle coasts between a pair of twin asteroids, as shown in the figure below where d1 = 2.55 km and d2 = 1.28 km. The mass of the spaceship is 2.53 x10^7 kg and the mass of each asteroid is 3.70x10^11 kg. Find the speed of the ...
October 21, 2016

Science , Biology
Why does a sorting process only work when variation is present in a population?
October 19, 2016

History
A: Passage of the Currency Acts B: Passage of the Intolerable Acts C: Passage of the Navigation Acts D: Passage of the Stamp Act 2. Which of the following pairs did NOT disagree throughout the colonial period A: Patriots and loyalists B: Christopher Gadsen and Samuel Adams C: ...
October 19, 2016

Science, English
how would you define a sorting process? A creative process?
October 19, 2016

Science,
sentence that following "Sorting"? for example Straining pasta from water after you finish cooking it .
October 19, 2016

Science,
Can you write a
October 19, 2016

Science
Thank you, my answer is a. Creative b. Sorting c. Sorting d. Creative e. Sorting f. Creative Is these collect??
October 19, 2016

Science
a. Choreographing a performance b. Straining pasta from water after you finish cooking it c. Earning a grade based on how many questions you answered d. Answering an essay question e. Determining who is tall enough to ride a roller coaster f. Making a clay mug by hand Is ...
October 19, 2016

English
thank you so much.
October 14, 2016

English
so the first option, right?
October 14, 2016

English
Which one is correct? did you go to the class yesterday? OR did you went to the class yesterday?
October 14, 2016

Eng
In the movie, silence of the lambs, dr.lector says " memory is all I have instead of a view." How can this be used to analyze his motives of crime? I think it may be related to how he is uncounciously being reminded of his past with the memories. But what else can I ...
October 6, 2016

Eng
what does "laying the foundation of human rights violation mean"? Especially when you are taking about how someone's acceptance of something lays the foundation of human rights violations
October 5, 2016

English
I was wondering what does "crime is a social construction" mean. Also, is it the same as "social construction of crime"?
September 27, 2016

Physics
would the max height be 33.9m?
September 23, 2016

Physics
An arrow is shot from a height of 1.4 m toward a cliff of height H. It is shot with a velocity of 28 m/s at an angle of 60° above the horizontal. It lands on the top edge of the cliff 3.6 s later. a) What is the height of the cliff (in m)? I got 25.191 m and that's the...
September 23, 2016

Math
Simplify: ((4/x)^(n-m))×((2x^2)^m) I don't even know where to start
September 21, 2016

Math
6(7 + 2) Since 6×7=42 and 6×2=12
September 21, 2016

math
You have 6 black socks and 4 white socks. what is the sample space? I think it should be 45 possible combinations.
September 15, 2016

maths
3 decimal
September 12, 2016

J
the decimal expansion of 147/120 will be terminate after how many decimal
September 12, 2016

world history
Im pretty sure i figured it out, B right ?
August 23, 2016

world history
Which statement best describes the period known as the Old Kingdom? A.) it was a time of dynastic uncertainty B.) it was a time of development C.) it was a time of great geographic expansion D.) it was a time of disunity My answer - A
August 23, 2016

Accountency
Journal entry:paid three months rent.Rs 3000
August 11, 2016

A
You have just landed your first summer job and your boss has told you that you can choose from one of 3 pay structures for the first week (7 days) that you work there. And after the first week, your pay will be frozen at the final rate for the remainder of the summer. • ...
August 5, 2016

Math
In a sine function, can you replace the phase shift by changing the period? Why or why not?
June 11, 2016

math
Rueben drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 7 hours. When Rueben drove home, there was no traffic and the trip only took 5 hours. If his average rate was 18 miles per hour faster on the trip home, how far away does ...
May 19, 2016

Civics
Pedro is thinking about buying U.S. savings bonds. However, there is a financial institution controlled by the government that may actively discourage Pedro from buying bonds. How and why would such a financial institution do this? A. Stocks on Wall Street may be doing quite ...
May 19, 2016

Civics
In what way do mixed and market economies support the ideals of democracy? A. Mixed and market economies elect a few farmers and local leaders to choose which goods and services to produce. B. Mixed and market economies do not produce more goods or services than what people ...
May 19, 2016

Geography
Reasons of Nepal dividing into development regions 1.Minimize regional disparity 2.Maintain equal population 3. Mobilize available means and resources.
May 11, 2016

mathematics
3003
May 6, 2016

chemistry
BaCl2
May 4, 2016

tourism
write a bibliography to acknowledge all the sources you used in violation
May 3, 2016

Algebra
Simplify into one fraction. -3/x+2-5/x+3 A. -8x-19/(x+2)(x+3) B. -8/(x+2)(x+3)** C. 2/(x+2)(x+3) D. 2x+1/(x+2)(x+3)
April 29, 2016

PHYSICS HELP!
1. A 125-gram projectile strikes a 1.45 kg block that's attached to a massless vertical pole & becomes embedded in the block causing the bullet & block to swing upward. The overall length of the pole & the block combined is 1.1m. The bullet & block at the highest point ...
April 26, 2016

SS
just a helper, is right. I got 100%
April 26, 2016

Math
An explorer descends to the deepest part of a cave. Then she ascends 25 feet per minute. After 3 minutes, she is at -195 feet. What is the depth of the cave?
April 14, 2016

European History, Modern History
This is coming from a Hungarian, in case you were wondering haha.
April 13, 2016

European History, Modern History
Actually, after the Revolution, Hungary's situation improved markedly compared to its neighbours. (Under gulyás communism, some people were allowed to own and operate private businesses, as well as travel outside the country to some extent--albeit mainly within the ...
April 13, 2016

geography
Thank you very much!
April 13, 2016

geography
What are the two most dominant economic activities in the arid climate of South Asia? Explain why. I have read over all my notes, the section in the textbook dedicated to South Asia, looked at several maps indicating different factors, and Googled this question, but which two ...
April 13, 2016

H.S history
Definitely the forced removal of Native Americans from their ancestral lands to Oklahoma (Trail of Tears), as well as the push to encourage settlers to move west (the Homestead Act). These are just two, but there are several including the annexation of Texas (1845), the ...
April 13, 2016

Geography
India has a federal government and was formed through the Constitution of India. There are three branches of government just like the United States, which is the judicial, legislative, and executive branches. The executive branch is led by the President and is the Head of ...
April 12, 2016

Geography
Are there any signs of devolution in the conflicts if there is any?
April 12, 2016

Geography
I meant to ask like are there any tensions that exist between the government of India and local groups within the country? I couldn't find some on Google.
April 12, 2016

Geography
What are some local groups of India?
April 12, 2016

Geography
Is India a federal, unitary, or confederate government? I think they are federal
April 12, 2016

PHYSICS
A 2000kg elevator is attached to a 1800kg counterweight. What power must the motor supply to raise the elevator at 0.4m/s?
April 12, 2016

Geography
Type of government and branches of government India has?
April 11, 2016

Geography
Thank you
April 11, 2016

Geography
Oh I don't think it does. So would I put just that India is currently not facing any conflict due to the shape of it?
April 11, 2016

Geography
Are there any conflicts India is having due to the shape of the country? I tried looking for some, but I couldn't find any. Can anyone help? Or maybe there is no conflict due to the shape..?
April 11, 2016

Business Math - help needed
Federal Express bought material handling equipment for its hub operations that cost $180,000. Using the MACRS, what is the depreciation expense in year 3 (using a five-year class)? A. $43,560 B. $34,560 C. $15,360 D. $40,000 Answer: B??
April 10, 2016

help please
d
April 4, 2016

History
C is definitely correct!
March 30, 2016

Physics - Constructive Interference
A square has sides of length L. In the lower-right and lower-left corners there are two sources of light waves, one in each corner, that emit identical in-phase light waves of wavelength 8.28 m in all directions. What is the minimum value of L such that constructive ...
March 30, 2016

Phys-Lens Question
A double lens system is made of +35.0 cm lens (lens #1) and a - 26.0 cm lens (lens #2). Lens #1 is placed at x = 0 cm on a meter stick and lens #2 is placed at x = 30.0 cm. Where on the meter stick will the final image be formed when looking at a distant object? s2"=f2(f1...
March 30, 2016

physics
A child of mass 54.7 kg sits on the edge of a merry-go-round with radius 2.3 m and moment of inertia 222.81 kgm2. The merrygo-round rotates with an angular velocity of 1.6 rad/s. What radial force does the child have to exert to stay on the merry-go-round? Answer in units of N.
March 29, 2016

ALGEBRA HELP!!
42*7=294. so the 294 day is tuesday. then simply count out. 295 wed 296 thur 297 fri 298 sat 299 sun 300 mon
March 29, 2016

ALGEBRA HELP!!
monday
March 29, 2016

Physics
A square has sides of length L. In the lower-right and lower-left corners there are two sources of light waves, one in each corner, that emit identical in-phase light waves of wavelength 8.28 m in all directions. What is the minimum value of L such that constructive ...
March 29, 2016

Physics
A double lens system is made of +35.0 cm lens (lens #1) and a - 26.0 cm lens (lens #2). Lens #1 is placed at x = 0 cm on a meter stick and lens #2 is placed at x = 30.0 cm. Where on the meter stick will the final image be formed when looking at a distant object? s2"=f2(f1...
March 29, 2016

Physics
Is this right? When a 5 kg box is lifted 3 meters from the ground, calculate the gravitational potential energy stored in the box. Calculate the work done by a Force to lift the box at a constant speed. Compare this answer to the amount of gravitational potential energy stored...
March 22, 2016

PHYSICS! are these correct?
How much kinetic energy does a 700-gram baseball have that is travelling at 20 m/s? What would be the kinetic energy if you doubled the mass? What would be the kinetic energy if you doubled the velocity? V1= 20 m/s K1= ½ m v1^2 = ½ (700 g)(20 m/s)^2 = ½ (...
March 21, 2016

Phys 2425
Two parallel wires, separated by the distance of 2 cm, carry the currents I1 = 1 A and I2 = 2 A in the same direction. How far from the wire carrying the current I1 is the magnetic field zero? I am wondering if the answer might be that it can never equal 0. Since the current ...
March 18, 2016

Phys 2425
Each of two long straight parallel wires separated by a distance of 24.0 cm carries a current of 5.00 A in the same direction. What is the magnitude of the resulting magnetic field at a point that is 14.0 cm from each wire? I have tried (U0I/2pir)2 as well as U0I/4pia(cos(...
March 18, 2016

math
Aaliyah is right! Trust her and not me on this one.
March 9, 2016

math
26*3.49? I think although I'm not sure.
March 9, 2016

physics
ik I just asked one, but I have more A 314 g particle is released from rest at point A along the diameter on the inside of a frictionless, hemispherical bowl of radius 45 cm. The acceleration of gravity is 9.8 m/s2 . Calculate its gravitational potential energy at point A ...
February 24, 2016

physics
thanks bro
February 24, 2016

physics
A spring has a force constant of 554.1 N/m. Find the potential energy stored in the spring when the spring is a) stretched 4.35 cm from equilibrium. Answer in units of J. b) compressed 2.98 cm from equilibrium. Answer in units of J. c) unstretched. Answer in units of J. I did ...
February 24, 2016

Math
27 times as large. you are just multiplying by 3, 3 times, and 3^3 is 27
February 24, 2016

Technology
I think spy gear
February 24, 2016

Calculus
are you fing dumb obvi he doesnt know he needs help
February 19, 2016

science
Two knights on horseback start from rest 88.0 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of .300 m/s^2, while Sir Alfred's has a magnitude of .200 m/s^2. Relative to sir Ggeorge's starting point, where do the...
February 14, 2016

Chemistry
Calculate the mass of H2O that is produced from the combustion of 13.8 mol of C3H8n propane. C3H8 + 5O2---> 3CO2 + 4H2O known: 13.8mol C3H8 unknown: mass of H2O
February 7, 2016

physics
A projectile starts from rest and moves 7 m down a frictionless ramp inclined at 21◦ with the horizontal. The acceleration of gravity is 9.8 m/s2 . What will be the range of the projectile if the bottom of the ramp is 1.7 m above the ground? Answer in units of m.
February 3, 2016

physics
nvm. got it
February 3, 2016

physics
A 0.46 kg mass is attached to a spring with a spring constant of 145 N/m so that the mass is allowed to move on a horizontal frictionless surface. The mass is released from rest when the spring is compressed 0.14 m. Find the acceleration of the mass at the instant the spring ...
February 3, 2016

Math
Yin's cellphone plan costs $30 a month. She used 12.5 hours in May. What was her cost per minute? About how many call can she make? Yin's average call lasted 3.25 minutes. How much did an average call cost?
January 29, 2016

Chemistry
OHHH... so, if more heat energy is provided, then more H2O molecules can be broken to their constituent of OH- and H+ due to the endothermic nature of the reaction, and hence the equilibria would favor to the right hand side of the equation in order to 'use up' the ...
January 27, 2016

Chemistry
I have been plagued by this question for a good half an hour, whilst doing past papers I came across it- ' EXPLAIN why the value of Kw increases as the temperature increases' as far as I can tell, it is about the excess production of OH- and H+ from le chateliers ...
January 27, 2016

perimeter and area
thank you Steve
January 26, 2016

perimeter and area
the top of the trusty twisty toaster has an area of 48 inches. if the top is 8 inches wide, how long is the side? what is the perimeter of the top? Length = 6? Perimeter = 28 inches?
January 26, 2016

perimeter and area
126 centimeters?
January 26, 2016

perimeter and area
is the width = 8 and the perimeter = 126
January 26, 2016

perimeter and area
the area of the jazzy juicers box top is 56 square centimeters. the box top is 7 centimeters long. How wide is it? what is the box top's perimeter?
January 26, 2016

perimeter and area
thank you
January 26, 2016

perimeter and area
the width is 8? the area is 96?
January 26, 2016

perimeter and area
the perimeter of the handy dandy doodad is 40 inches. the length of one side is 12 inches. How wide is the doodad? what is its area?
January 26, 2016

perimeter and area
thank you Ms. Sue
January 26, 2016

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