# 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.