physics please HELP !

128,420 results, page 20

college algebra, Please help!!

solve the following equation 9^x-1 = 144(6x) please show work.

calculus please help

lim y→−1 (sqrt(y^2+8)-3)/y+3 find limit if it exists please help

calculus-can someone please help me with this ques

find the rate of change of f(x)=x^2+4 a. from -2 to 0 b. from 1 to 3 c. from -2 to 1 please show work

please help me please!!! Math

Find a6 for an arithmetic sequence where a1=3x+1 and d=2x+6 . I can't even solve it because I do not have any idea.

Chemistry Help Please

Which of the following is the strongest reducing agent? a) Li+ b) Zn c) Sn d) H2 Is it Li? Can someone please explain what the answer is and why?

Calculus Help Please!!!

if f(x)= x+(1/x), find f'(x) using the limit definition of derivative. Please show steps!!! Thank you!!!

math

Please help me with this one, I am stymied! ; Does weight + height affect force? Please explain!

math/help please

Question: Kenny reads 5/8 page in 2/3 minutes. This is unit rates. Please help!

Algebra 1

Please list five numbers that have 3, 5, and 7 as prime factors. Please help answer thanks

integral Calculus

ʃ (x4 + 6x3 – x2 + 2)dx I really need it for practicing this subject...please please help

history

How is Mary McLeod Bethune a hero?Please no links and please at least 8-10 sentences.

FINANCE

hi! could someone give me a well known company with direct and indirect competitors ( at least 3) please!! please help me <3

Please Help

Please help I have to do something but do not get what these words mean. Post heart rate Duration

math

Multiply 2/3 and 6/7 A. 4/7 B. 4/21 C. 12/21 D. 3/7 PLEASE HELP if you could please tell me all the answers for this mixed numbers practice if u know them

Science Help Please

Giants and dwarfs are believed to be _________ stars. a) old b) young Please help!

algebra

could someone please check these roblems for me and if they are not rightWOULD YOU PLEASE HELP E WITH THE CORRECT ONES THANKS!!! 1. Slove for X, wher X is the real number, square root 5x + 9= square root 9x + 13= 27 2. Find the value: ^3 square root -27= 9 3. Write the ...

Chemistry URGENT PLEASE PLEASE PLEASE HELP!

Determine whether the solution is basic, acidic, or neutral. Write net ionic equations to show how it behaves in aqueous solutions. 1) Fe2(SO4)3 I know it is acidic Do I do hydrolysis equations for the net ionic or do I do redox reactions?

Physics

Please help me with the following problem: Joe is on a cross-country trip from New York to Los Angeles. He drives for 45.0 min at 70.0 km/h, 10.0 min at 95 km/h, and 30.0 min at 55.0 km/h, and he spends 20.0 min eating lunch and buying gas. What is the average speed for this ...

speech

Can you please help me out with a speech? I'm in 10th grade at High School and we're doing speeches soon. I'm not lazy and trying to get someone to write a speech for me but I seriously suck at speeches and have no idea what to write or talk about. Can you please write me a ...

Physics

A particle of mass m0 is given a kinetic energy equal to one-third its rest-mass energy. How fast must the particle be traveling? please include units

physics

Hi! could anyone please help me with this problem. Thank you so much. Q: The critical angle for total internal reflection for ice surrounded by air is 49.8°. Calculate the Brewster angle for ice if the light is incident from the air.

college physics,electric potential

Four point charges, each with Q = 7.2 µC, are arranged at the corners of a square of edge length 3.6 m. What is the electric potential at the center of the square? V? Please show me how to solve this.Thanks

SCIENCE(PHYSICS)

A train travels 40 km/hr for 0.2 hr, 50km/hr for next 0.2hr and 60km/hr for next 0.4 hr.calculate the average speed of train. PLEASE SOLVE THE QUESTION WITH ANSWER AS I WAS NOT ABLE TO GET THE ANSWER

Physics Need Help PLEASE

Two point charges are separated by 8 cm. The attractive force between them is 14 N. If the two charges attracting each other have equal magnitude, what is the magnitude of each charge?

Physics

What is the speed of the wave represented by y(x, t) = A sin(kx − ωt),where k = 7.0 rad/cm and ω = 3.6 rad/s? answer should be in cm/s I tried to subtract 7-3.6= 3.4 which is wrong and I also divided 7/3.6=1.94 , but that is wrong too. I don't know how to do ...

physics ..PLEASE HELP ASSIGN DUE SOON :(

A jet airplane has an intensity of 97.7W/ m^2 when heard at a distance of 30.0m. What is the maximum sound intensity heard by a person on the ground when the airplane is 10100m overhead?

Physics

In the circuit shown, find the voltage Vx (in Volts) if V = 17.0 Volts, R1 = 13.0 k ohms, R2 = 4.0 k ohms, R3 = 13.0 k ohms and R4 = 21.0 k ohms. Answer is -6.5 I don't understand how they got it, can someone please explain it with steps? Thanks tinypic. c o m/r/2pzhcpl/8

physics

In the circuit shown, find the voltage Vx (in Volts) if V = 17.0 Volts, R1 = 13.0 k ohms, R2 = 4.0 k ohms, R3 = 13.0 k ohms and R4 = 21.0 k ohms. Answer is -6.5 I don't understand how they got it, can someone please explain it with steps? Thanks tinypic. c o m/r/2pzhcpl/8

Physics

Intensity of 4Mhz in 1.54mm = 2W/cm2 at 4cm intensity =? I know the answer is 0.32, but I do not understand why. Can you please explain? I did figure out that Attenuation= 8db. 4/2 x 4cm = 8db. Thank you in advance. I appreciate it!

Physics

Help with this please. No idea. Except for a 22.00 min. rest stop, Emily drives with a constant velocity of 89.5 km/hr north. How long does the trip take if Emily's average velocity is 77.8 km/hr north?

college physics

This site is just a front for liveperson Most college physics questions are not answered for months if ever. Out of "200 experts" you must have somebody who knows physics right? Guess not.

PHYSICS HELP

Draw an arrow in the box that shows the direction of the force. Please help. I want to be sure. W > 0 W = 0 W < 0 ___ ____ ____ ___ ____ ____ d-> d-> d->

physics b

If heat Q is required to increase the temperature of a metal object from 4°C to 6°C, the amount of heat necessary to increase its temperature from 6°C to 12°C is A Q B 2 Q C 3 Q D 4Q please help me asap

math help please

(-3)^3-(-8)(-2)= -3 to the 3 power is -27 subtract -27 - -8 = -19 multiply by -2 =38 is this right please help (-3)^3-(-8)(-2) Use BODMAS rule So the answer is (-3)^3-16 ==>-27-16 =-43

Math please help me

add the fractions 1/3, 5/6, and 3/8 reduce your answer to lowest terms please show your work thanks for the help

trigonometry

Please solve this equation. As you write down the steps, please give me a description on what you did. y^3 - 16y^1/2 + 64 = 0

Trig.

Please solve this equation. As you write down the steps, please give me a description on what you did. y^3 - 16y^3/2 + 64 = 0

Language Arts PLEASE HELP

How do you do a word cited page? please help me so confused. Paper due tomorrow. Thank you

math

PLEASE EXPLAIN HOW I CAN SOLVE MIXED NUMBERS PLEASE GIVE ME A EXAMPLE FOR PARTS THAT ARE SHADED THANKS

Math -please check me

what is the perimeter of a rectangle if the length is 5/9 cm and the width is 2/9 cm? a. 5/9 cm b. 1 5/9cm c. 7/9 cm d. 1 7/9 cm the answer I got was 14/9 please help me.

algebra

For the following please find (f o g)(x) and (g o f)(x). Also please report any shifts or changes in amplitude f(x) = cos(x), g(x) = 2x + 6

English

Can you please tell me what a teen's life was like durin WWII? Please include sources

algebra

i don't know how to do this with the fractions. can you please please help? simplify the expression and combine like terms. 2n^2+4m n^2-m _______ + ______ 3 3

Algebra

Can someone please tell me what the domain of the following equation is? Please explain how you got that answer. g(x)=5^x

Social psychology

Please help me define: maladaptive and adaptive. I've try googling it and unable to find please help. Thanks

science

PLease someone help me!!! What are some of the names of acids and alkalis that are in shampoo!!! PLEASE HELP MEEEEEEEEEEE!!! thank youuuuuuuuuuuu!!!

algebra

can someone please check my answer for me? 6-2x=6x-10x+14 I got x=-2 is this correct? if not please let me know which step I missed.. thank you

Algebra 1

Formulas: Please solve the equation for x. y=2/3x+8 2/3 is a fraction. PLEASE SHOW YOUR WORK I REALLY NEED HELP.

Algebra 2 honours

can someone please tell me how to factor out (x^6+1)^4? please show me how you got the answer... Thank You... :D

Socials-Please Help

Can someone please go over my posts quickly, I was waiting for a response since yesterday:-(

math

Please help me answer this.. Suppose that 2^(x/2)= p 3^(x/3-1)= q [5^(x/2)]/3 = r Express (0.48)^x in terms of p, q and/ or r. this question came from our reviewer.. please and thank you!

PLEASE HELP - english

If something has a higher surface area what does that mean? can it me said that it is more thicker? please and thank you

Geometry Please Help

/Users/szeringue/Desktop/SCAN0001.JPG Can you help me solve this problem, Please AB=27 BC=x CD=4/3x AD=x AC=? How do I get what AC equals?

Geometry Please Help

/Users/szeringue/Desktop/SCAN0001.JPG Can you help me solve this problem, Please AB=27 BC=x CD=4/3x AD=x AC=? How do I get what AC equals?

PHL/323

WHAT ARE SOME BLURBS FOR SCOTTS PAPER COMPANY? PLEASE PLEASE HELP IM ALMOST DONE AND THIS IS CONFUSING ME

Please help!

Find the volume of 0.110 M hydrochloric acid necessary to react completely with 1.54 Al(OH)3. Please explain how to do this.

Math

I SERIOUSLY need help! Solve the linear system by using substitution. x=6-4y 2x-3y=1 Explanation too, please! Please and thanks!

combine functions.. please help.

Given: f(x)=2x^2-x+1 g(x)=2 sin x h(x)=3^x Determine: a) f(g(x)) b) (h^-1 o f)(x) c) g(f(h(x)))) Please show steps, thank you very much.

chemistry

calculate the volume occupied by 10^22 molecules of a gas 300 k and 760 mm pressure. please help me please...................

math (algerba 1) Please help!

x+y=0 3x+y=-4 Sovle each system of equation by graphing. If got the answer (-3,3), but it's not there. Please explain!

Algebra

Please help me. Please show work. What are the domain and range of the function y=2 square root 3x + 4-5? *A.) X >/= -4/3; Y >/=-5 B.) X >/= 4/3; Y >/= 5 C.) X </= -4/3; Y </= -5 D.) X </= 4/3; Y </= 5 Thank You so much.

CONFUSING QUESTION PLEASE HELP

Which of the following is the strongest reducing agent? a) Li+ b) Zn c) Sn d) H2 Is it Li? Can someone please explain what the answer is and why?

algebra1 HELP PLEASE

find the value of x and y that make each equation true -4+(y)^i=-12x-i+8 please show the steps thanks

Math

how do you write radicals as powers? please help me with the following question, I know the answer but I don't know HOW to get it. I must learn this so please help me. ãy 5/3

alGEBRA 2 help please would appreciate

graph 36x^2-900=25y^2 show the step please

algebra 2 help please would appreciate

3+(2x/x+4) divide x/x+4 please simplify the complex fraction thank you show work

science... PLEASE HELP!

Please explain how the movement and position of the particles change when a liquid bevomes a solid.

Pre Algebre-please help!

If there is a cylinder that is 3cm. tall and has a radius of 7.5cm. what is the surface area? Please help! Thanks!

equations/mrs sue

11=22t please help having trouble please show the steps also 7r=-7/2, m/7 =12

business

research please assist how do you start a hospital please give websites for contact information thank you

Science

explain air resistance in terms of colliding particles Please Help...nothing to complex please

math

12. What is the distance between P(–4, 3) and Q(6, 1)? Round to the nearest tenth. can someone please explain how to do this problem please

math

12. What is the distance between P(–4, 3) and Q(6, 1)? Round to the nearest tenth. can someone please explain how to do this problem please

english

WHAT ARE FEATURES OF A SHAKESPEARIAN COMEDY? ANSWER QUICKY PLEASE I NEED IT IN THE NEXT 10 MINUITES PLEASE.

Algebra2 Help please

Compare the graphs of the inverse variations. Please provide at least 3 comparisons y= (-0.2/x) and y= (-0.3/x) -0.05, -0.075 , -0.1, -0.15 ?

POLS210 D001

Please I am in desperate need of finding the answer to pop quiz 4,6,and 8 please is there anyone out there that could help me.

Algebra

8. Which of the following expressions is equivalent to (-7)^5 -7 * -7 * -7 * -7 * -7 -7 * 5 (-7) * 7 * (-7) * 7 * -7 5 * 5 * 5 * 5 * 5 * 5 * 5 PLEASE HELP ONE OF THESE ARE SUPPOSED TO BE EQUAL TO (-7)^5 = -16807 BUT A AND C ARE :(( I'M SO CONFUSED PLEASE HELP :(

socials 10 please help!!!

What was the outcome of the numbered treaties on the first nations? please give full answers thank you!!!

Essentials og Psychology

The science of the mind questions please for Penn foster. No need of answers. Please help.

Science

Can someone explain the idea of "structure affects function" please? And can you please give me an example?

math-precalculus

help me please.. and please provide steps so I can follow. sec(2ϴ)=3... solve for all solutions on [0,2π]

Algebra ( please help = - =)

Write the ratio in the simplest form 16:24 A 1: 2 ***** B 4: 3 C 3: 4 D 2: 3 Solve for the following proportion x/2=8/9 A 144 B 0.44 C 1.78 D 36**** please help me

FRENCH WORK ASAP

please please someone check my work I don't understand it fully so I am asking if someone could please check my work thank you if it's too much I'm sorry. God Bless

Anthropology

I need some serious Assisting. PLEASE!!!!I am doing a project on gender and gender roles including identities and the equality and inequality. The Culture is Native American. I need help a.s.a.p. This is my last week in this class. Please, please help me. Thank you so much. I ...

math please help

someone please show how to do Simplify, if possible: 6x^2y^3+9x^2y^3/3x^2y^2

math

solve for x 3x^2 + 2x - 5 = 0 you foil it and get: (x - 1)(3x + 5) but i don't know what to do from here. please please pleasee help.

Math(algebra)

Please help me solve this problem 2/5(2x-3)> please show me how this is done

college

Please help. I'm stuck. Solve: 20/5p+3/5q-6/5p+14/5q Please show me the steps. Thank you

prealgebra

Simplify: Can someone please help me with this and go through the steps for it please. Thank You -8z(-9z^2-z-1)

Math

Can u please guide me on solving these two equations please. Thank You 3.6-7.6 (-8.3)-11.4

Please Help

Can someone please take a look at my french posts, thanks.

Ms. Sue please help

Pigskin week seven interstates help please

geometry please help

please help me with the question I posted at 4:56pm today

science

please help me write a paragragh please it is due tommorow.

algebra

I need help with these problem please. X^2+6=15 (x+4)^2=6 can some one help me please.

english please

does being shy can effect my education? please help and thank you

Math

Please help me factor this. x(-x^3-4x^2+3x+18) (using synthetic division please.) Thank You.

PLEASE HELP!!!!

if log6=m and log 5=n, write 7.2 as an expression in m and n Answer is 2m-n Please help me!!

Math.

Please help! |x+1|-3 > 8 Solve the absolute value inequalities. Please and thanks.

Math

2(27+4x)+7x=21 Please help me solve this problem and show your work please and thank you

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