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physics.pls help

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science help
How can you describe the location of hafnium (Hf, atomic number 72) on the periodic table? choose all that apply. -Transition metals -noble gases -group 6, period 4 -group 4, period 6 pls help me damon or ms sue pls help me pls pls pls

math help pls pls pls
Given f(x) = 4x + 13 and g(x) = 10x − 2, solve for (f + g)(x) and select the correct answer below. (f + g)(x) = 14x + 15 (f + g)(x) = 14x + 11 (f + g)(x) = 6x + 11 (f + g)(x) = 6x + 15 is it b pls help me

Physics
A child pulls a wagon along level ground. The handle with which she pulls the wagon makes an angle of 20.0 degrees with the ground as the child pulls with a force of 78.0 Newton. What are the components of the force. Pls pls pls pls help me answer this and may God bless u!

math help pls pls pls
The graph below plots the values of y for different values of x: Plot the ordered pairs 1, 3 and 2, 4 and 3, 9 and 4, 7 and 5, 2 and 6,18 Which correlation coefficient best matches the data plotted on the graph? 0.5 0.8 0.9 1.0 pls help me

physics.pls help
How do you know what element is chemically active on the periodic table? PLS HELP

science
pls. pls. pls. somebody help me...you see im on a science class and i don't want to go to the regular section, so pls.... give me an acrostic for the word "SCIENCE"

physics.pls help
Why is it important to asaume that a rope under tension is taut and does not stretch. pls help

physics.pls help
A 100g bird sits in its nest. what is the Fnet(net force) in this case? pls help

physics.pls help
can you help me to isolate the ''t'' in this formula. d=V1t+1/2at^2 pls help

geography
hi,i have make a project on hurricane Katrina on disaster management pls help to get information pls pls help me............

Chemistry :'(
(d) Which of the following sets of quantum numbers is not permitted? Select all that apply. 2,1,1,-1/2 1,1,0,-1/2 2,-1,1,-1/2 3,2,1,1/2 Pls pls pls help me :( x

Physics
PHYSICS HELP PLS!!How does the equation of a displacement v. speed graph (cart moving down an incline through a speed gate) relate to the work-energy principle. Pls answer asap! Thanks!

Math pls help me pls pls
If the outliers are not included, what is the mean of the data set? 72, 82, 3, 55, 62, 73, 90, 80, 151, 59, 46, 31 59 65 67 73 is it b

help pls world history pls pls
Which of the following is not associated with one of the pillars of Islam? charity faithfulness sacrifice self-glorification

world history pls pls help help
Who was the power behind the throne during Justinian's reign? Belisarius Augustus Sophia Theodora is it d pls help

science help pls pls
Which of the following terms refers to the foamy bubbles of a breaking wave? Duration Fetch Speed Surf is it d pls help me

math help pls pls pls
Choose the polynomial written in standard form. x^3y^2 + 4x^4y + 10x^9 x^4y^2 + 4x^4y^5 + 10x^2 xy^2 + 4x^3y^8 + 10x^2 x^4y^5 + 4x^3y^2 + 10x^2 is it the last one pls help

science help pls pls
The information about groundwater recorded by a student is valid when it is not biased its results cannot be repeated it is not obtained from a primary source its findings do not have to be shared with others is it a pls help me

algebra pls pls help
Factor completely: 2x^3 + 14x^2 + 6x + 42? A. 2[(x^2 + 3)(x + 7)] B. (2x^2 + 6)(x + 7) C. (x^2 + 3)(2x + 14) D. 2(x^3 + 7x^2 + 3x + 21) is it d pls help me

physics- TEST TMRW PLS HELP!
how would i do this? -----------------A-----------B-------- I<----1.5m------>l<--0.6m-->l<-0.3m->l a carpenter carries a 6kg board . the downward force he feels on his shoulder (A) is .... ? (B is where his hand is) pls help!! i have so much difficulty with ...

world history pls pls help help
What did special religious observances in both the Aztec and Spanish calendars provide for people? Work and income Education and training Law and justice Fun and entertainment is it d pls help

science help pls pls
Which of the following is typically associated with a large amount of organic material in a water supply? Lower turbidity Higher phosphates Fecal coliform High dissolved oxygen is it c pls help

Finance
Omega Instruments has budgeted $300,000 per year to pay for certain ce- ramic parts over the next 5 years. If the company expects the cost of the parts to increase uniformly according to an arith- metic gradient of $1 0,000 per year, what is it expecting the cost to be in year...

physics
help pls. i need to find the best animation of the movement of electrons and protons... the best one... pls send me the link. thanks so much.

physics.pls help
How much time can you save travelling diagonally instead of running 450meters south and then 650meters west. if your running speed is 5.0m/s. pls help

Math
Can u pls pls pls solve this algebraic expression?? I cant solve it although I tried many possible ways and solutions :/ 10+1/3[4k-(18+7k)]

science help pls pls
Which of these surface features are formed when the acid in groundwater reacts with limestone? rivers and springs sinkholes and caves hot springs and geysers wetlands and volcanoes is it b pls help me

math help pls pls pls
Create an example of a polynomial in standard form. How do you know it is in standard form? pls help me

physics-pls help
The ball is thrown froma height of 10 meters with an initial upward velocity of 3.0m/s. How long does it take to land on the ground? What is its maximum height? i know the formula is d=v1t+1/2at^2 but i do not know what else to do. pls help

Physics
A spiral spring is compressed by 0.04m. Calculate the energy stored in the spring if the force constant is 400N/m... pls I need help wif dis, detailed answers pls, tnx

physics
pls explain to me how you add 65km{North 85 degreesWest], 3500m[South 10 West}, 6000m{East 70 degrees South], 54km[North 60 degrees East]. pls explain to me how i should add these vectors. I really need help. pls help

physics- TEST TMRW PLS HELP!
w w w . m e d i a . c h e g g c d n . c o m / m e d i a / a c 3 / a c 3 b b 1 e 1 - 5 b a 8 - 4 1 9 e - 9 a 8 4 -a d 5 0 e 4 6 a 2 9 4 e / p h p s U O o L 3 .p n g (delete all spaces for link to work) Determine the magnitude of the resultant moment produced by the forces about...

math help pls pls pls
Choose the correct simplification of the expression the quantity a to the 2nd power over b to the 3rd power all raised to the 4th power. A. a to the 6th power over b to the 7th power B. b^12 C. a^8b^15 D. the quantity a to the 8th power over b to the 12th power pls help me

afrikaans (AFK503/101)
Hi there, can anyone pls help me with AFK1503/101 - 2015. I am seeking an English version of this assignment pls, is there an English one available? if there is pls provide me with a website address to get access. Thank you. Tanya

math help pls pls pls
Consider the functions f(x) = 2x + 1 and g(x) = x^2 − 10. What is the value of f[g(3)]? 39 −3 −7 −1 pls help me

math help pls pls pls
Four polynomials are shown below: A. 2 − 2x5 + 2x2 B. 5x3 + 5 − 5x4 C. 3x + 2x5 D. 6x3 − 1 Which of the above polynomials is a 5th degree binomial? Polynomial A Polynomial B Polynomial C Polynomial D pls help me

algebra pls pls help
Determine which polynomial is a perfect square trinomial. 49x2 − 28x + 16 9a2 − 30a + 25 25b2 − 45b − 81 16x2 − 24x − 9 is it b pls help me

Science
Pls help me solve this question pls. A stone of mass 6.5kg is thrown vertically upward with velocity with 10m/s find a. the potential energy at the greatest height and the value of h .b the kinetic energy of reaching the ground again(g=10m/s2) in physics?

science help pls pls
A scientific law can be best described as an explanation of a specific relationship a series of observations with contradictory data a phenomenon which works under changing conditions a description of specific relationships under given conditions is it a pls help me

physics.pls help
Participants in a road race take water from a refreshment station and throw their empty cups away farther down the course. If a runner has a forward speed of 6.20m/s, how far in advance of a garbage pail should he realease his water cup if the vertical distance between the lid...

physics.pls help
Participants in a road race take water from a refreshment station and throw their empty cups away farther down the course. If a runner has a forward speed of 6.20m/s, how far in advance of a garbage pail should he realease his water cup if the vertical distance between the lid...

science help pls pls
Which of these statements best explains why scientists use models? to allow other scientists evaluate their data to speed up or slow down natural processes to describe and explain non-observable objects and processes to predict the scientific theories which would be proposed ...

science help pls pls
One group of scientists has proposed a new theory on Adaptation. A majority of scientists worldwide agree with the theory. The theory is most likely biased. incomplete. accurate. unchangeable. is it accurate pls help me

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 .

MANIPULATION OF DNA
can anyone describe to me what this is pls? also can anyone pls explain how dna manipulation works and what it does pls?

math help
1/4 divided by 3/8 pls help me im confuss i forgot the ste pls explain

pre algebra
2x^2 + 8 - 4x + 3x - 6x^2 + 7 what does this simplify to A)-8x^2 - 7x + 15 B)-4x^2 - x + 15 C)4x^2 + x + 15 D)8x^2 + 7x + 15 pls help me reiny steve or damon pls help me

math pls help me
(-2y + 5 )(y + 3) what would this simplify to? A)-2y^2 + 8y + 15 B)-2y^2 - y + 15 C)2y^2 + 8y + 8 D)2y^2 - y + 8 pls help me steve or damon or ms sue

math
Pls i want you to teach me the 5 90 lotto formular pls i need it now

food science
pls give me an idea on the formulation of bavarian cream filling. pls. thank you

Science(Help NOW, Pls)
wat elements make up water? pls help! i will be very happy if you do! :S

science help pls pls
Which of these is the most practical method to prevent global water shortage? Stop planting trees and shrubs in gardens. Conserve, recycle and reuse water in households. Stop using appliances like washing machines and dishwashers. Discourage setting up of power plants which ...

science help pls pls
Dams are used to produce hydroelectric power. Which of these best describes the impact of a dam on the environment? It causes air pollution. It reduces the level of groundwater. It causes changes in the river ecosystem. It reduces the level of oxygen in river water. is it c ...

math help pls pls pls
A company is deciding whether or not to hire a new worker. The company must pay the worker hourly and cover a daily cost for insurance. The cost to pay an hourly worker for one day is represented by the function y = 8x + 25, where x is hours. What is the y-intercept, and what ...

Science(Help NOW, Pls)
organisms in which domain live in every environment? pls help, im stuck on this one. :S

(pls help) algebra
4x+y-32=1, 6x-y-4z=7, 10x+2y-6z=5 pls show me how to solve for x,y,z. Ans:xx=1.5,y=-2,z=1

physics
A man is driving his car ata velocity of 100km/h on a straight road. H e sees a traffic jam at a distance and slows down to 12.5m/s in 3.0s. What is the average acceleration of the car? pls help. I know that the formula for average acceleration is V2-V1 divided by T2-T1 but ...

e commerce or marketing, help pls
hi,good evening everyone can you help me on finding a clothing manufacturer resource system??? pls thank you

Algebra help pls fast
How do you Find the lateral area of a square pyramid. base:8 Height:22. and side:8 Help pls

Chemistry
rank the following atoms and ions in the order of expected increasing radius: Ca, Ca2+, Ar Pls pls help me kindly... Anyone?

PLS HELP ME WITH ONE MATH QUESTION!!???
pllllsssss help me!!!!!!! 5. How many lateral edges are there in a triangular prism? (1 point) 6 3 9 12 I don't know if its 6 or 9 or even 12!!??? pls help asap!!!!!

Pre-Algebra Help pls fast
How do you Find the lateral area of a square pyramid. base:8 Height:22. and side:8 Help pls

physics.pls help
The volume of a cylinder is defined by the formula V=pie R squared h. If initially have a cylinder with a volume of 10m cubed. Find the volume of the cylinder if the height doubles and if the height is cut in half. pls i really need help.

algebra pls pls help
The equation f(x) = 4x^2 − 16x + 9 represents a parabola. What is the vertex of the parabola? (2, −7) (−2, 57) (4, 9) (−4, −137) is it a pls helpme

Help pls.
Compute the acceleration of the block sliding down a 30 deg inclined plane if the coefficient of kinetic friction is 0.20. Show solution pls.

LA --- 1 question pls help!!!
hi, one question based on the short story called, "Cyber Chitchat" this one confuses me, pls help if u know the book! 8. The tone of "Cyber Chitchat" is (1 point) serious. humorous. depressing. angry. i think its humorous but im not so sure..... pls help asap!!!!! thanx in ...

science help pls pls pls
A new object, Object Y, was discovered outside our solar system. Object Y is small and rocky, is not a satellite of any other object, and it does not have enough gravity to clear away smaller objects near its orbit. The characteristics of Object Y most closely resemble those ...

science help pls pls
Jupiter is 5.2 AU from the sun. What is its distance from the sun in kilometers? 28,846 km 78,000 km 28,846,153 km 780,000,000 km is it d pls help

math help pls pls pls
Find the quotient of the quantity negative 36 times x to the 3rd power minus 6 times x to the 2nd power plus 12 times x all over negative 6 times x. −36x3 − 6x2 − 2 −6x2 + x − 2 6x2 − x + 2 6x2 + x − 2 pls help me

CHEMISTRY> HELP QUICK! pls
I GOT THIS WRONG IN AN ASSIGNMENT. I HAVE AN EXAM IN 2 DAYS. CAN YOU SHOW ME HOW TO DO IT PLS. What is the pH of a 2.62 x 10 -1 M NaNO2 solution ? NB the pKa for HNO2 = 3.153. 12.13 13.42 1.87 8.29 0.58

science help pls pls
Which of the following is typically associated with a reduction in photosynthesizing plants in a water supply? An increase in dissolved oxygen A decrease in dissolved oxygen An increase in phosphates A decrease in phosphates pls help me

ss --- one question pls help!
pls help!!! What kept the price of cotton high in the years before 1860? a. cotton gin b. demand in Great Britain c. slavery d. large plantations I origionally thaught it was a. cotton gin, but after research, it looks like it was b. demand in GB my textbook doesnt say ...

math help pls pls pls
The map of a biking trail is drawn on a coordinate grid. The trail starts at P(−7, 6) and goes to Q(4, 6). It goes from Q to R(4, −6) and then to S(6, −6). What is the total length (in units) of the biking trail? 25 12 13 21

History
The Transcendentalism movement most directly affected the development of American politics literature popular culture painting and sculpture Is it c. Pls help me ms sue or dr.bob or steve or anyone pls help me

world history pls pls help help
What caused the downfall of Ghana? a) Climate change and Berber battles b) Songhai invasions and disease c) Internal revolts d) Depletion of the salt mines is it b or c

math pls help!!!!!
these are the few i don't know/im not sure. pls help! The distance from Newtown to Oldtown on the highway is (6x^2 + 2x – 2) miles. Using the back roads, the distance is (5x^2 – 8x – 6) miles. How many miles shorter is the second route? A. 11x^2 + 10x - 8 B. -x^2 - 6x + ...

math help pls pls pls
Find the quotient of the quantity negative 15 times x to the 2nd power times y to the 6th power plus 50 times x to the 4th power times y to the 3rd power minus 20 times x to the 2nd power times y all −3y5 + 10x2y2 − 4 −15x2y6 + 50x4y3 − 4 3y5 + 10x2y2...

Math
Pls help .[1] Solve the eguation 4*=28. [2] change 1/20 to decimal [3] change 60% to a common fraction . Pls i need the solving thank you

calculus
After solving with A=(-1,2) x^2+2x^2+x+1 got 119/12a pls where did i get it wrong. And with -[(-55)] x^2-25dx i got -50 pls am i correct

Lotto game
This is winning Number, 55-80-83-65-3, pls can you help me out of the next number on 1th feb 2014, pls,

math help pls pls pls
Tablets are on sale for 15% off the original price (t), which can be expressed with the function p(t) = 0.85t. Local taxes are an additional 8% of the discounted price (p), which can be expressed with the function c(p) = 1.08p. Using this information, which of the following ...

social studies---check 1 question pls
6. Whose mill launched the factory system? (1 point) James Monroe Eli Whitney ***Samuel Slater*** Francis Cabot Lowell help pls

english
need some ideas for a classification essay on advertisement pls I have submitted three different options to my teacher and he has declined them either saying there is overlap or they are not distinct. i am stumped! pls help

science help pls pls
Which of these is an example of how the ocean plays an important role in climate change? The warm Gulf Stream helps maintain moderate temperature in coastal regions in southern Florida. Aquatic animals produce carbon dioxide during respiration which causes warming of ocean ...

physics
Two children on racing bikes start from the same reference point. Child A travels 5.0m/s{right} and child B travels 4.5m/s{right}. How much farther from the point of origin is child A than child B after 5.os? pls I really really need help. I do not understand it and I do not ...

math help pls pls
Systems of equations with different slopes and different y-intercepts have more than one solution. Always Sometimes Never

Science(Help NOW, Pls)
when rock layers are pulled from opposite directions, one block tilts up, while the other block does what? answer pls, need help.

science help pls
Which of the following is a technique used in relative dating? Beta decay Index fossil correlation Isotope ratios Radiocarbon dating is it d pls help me

Social
Why is the Nice France attack matters to you right now? *Can someone help me write a short paragraph? Pls Even a short response. Pls. Thanks a lot.

math help pls pls
How do you solve the formula for the perimeter of a rectangle with width W and L length for the length p=2w+2L

physics.pls help
An ice hut used for winter fishing is at rest on a level patch of snow. The mass of the hut is 80kg. A wind exerts a horizontal force of 205N on the hut, and causes it to accelerate. While in motion, the magnitude of the force of friction acting on the hut is 196N. What is the...

math help pls pls pls
The local ice cream shop is deciding whether or not to hire a new worker. The shop must pay the worker hourly and cover a daily cost for insurance. The cost to pay an hourly worker for one day is represented by the function y = 10x + 30, where x is hours. What is the slope, ...

physics
pls.. help me with this i really need it.. pls. A gas in a cylinder expands from a volume of 0.110 m3 to 0.320 m3. Heat flows into the gas just rapidly enough to keep the pressure constant at 1.65 x 105 Pa during the expansion. The total heat added is 1.15 x 105 J. (a) Find ...

values...pls. help me
can you help me please how to get an answers for this question below.. pls.give me an examples for this question. thanks God bless you.. 1.xplain a strategy wherein a liability may turn out to be an asset to ANYONE?

science
pls could u give me a website with all the science warning signs on in pls?

sociology-pls help
similarities between milgram's experiment and stanford experiment pls help

science pls pls pls help me
The lake water in a location in Florida had an unusual color and smell. Investigations revealed that the lake? water contained high levels of toxic fertilizers and pesticides which were carried into the lake from gardens and common areas in the location. What are people in the...

math help pls pls
Analyze the following statement. Brandon puts his water in the refrigerator so it will stay cold. Is the statement an example of correlation or causation? A. Correlation because there aren't enough observable trials B. Causation because a refrigerator keeps things cold C. No ...

science help pls pls
Which of the following best explains how water conservation can reduce waterborne diseases in a community? More people will have clean water to drink and bathe in. More people will drink bottled water imported from faraway springs. More people will be encouraged to visit the ...

science help pls pls pls
Generally speaking, how does the complexity of Colorado's geology compare with the complexity of Florida's geology? Colorado's geology is more complex than Florida's geology. Florida's geology is more complex than Colorado's geology. The geology in Florida is equally as ...

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