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October 25, 2014

Search: physics- please explain

Number of results: 113,772

Physics help please!
Explain why the sum of the masses of the uranium nucleus and of the neutron does not equal the total mass of the products of the reaction. I guess its a theory question. Someone please explain!
September 12, 2014 by Ariana

physics - please explain further
Can someone please explain the answer I got for a question I previously posted on this page? I don't understand the solution I was given and even when I try it, I'm not getting the right answer.
April 21, 2009 by Lucy

socials
can u please explain the methaphor "slow dawns are caught in great wooden bowls" please explain with detail please please need fast
March 5, 2011 by JACKSON !ASAP!!!!

Science
Explain the energy transformations during skydiving Explain what happens once a skydiver reaches terminal velocity please help...i cant find any information...please note that I need to EXPLAIN
May 4, 2014 by Anonymous

Physics
Does the solar powered calculator work when there is no bright light falling on the solar panel? Explain. I think it does but I don't know why please help explain this. Thank you
March 10, 2014 by Cherie

PHYSICS
Using the motor principle explain why a motor is rotating in the direction indicated. I seriuosly have no idea, please help explain this theory to me.
February 6, 2010 by Sarah

Social Studies
PLEASE EXPLAIN IN YOUR OWN WORDS PLEASE PLEASE HELP IN YOUR OWN WORDS PLEASE. :( :( I REALLY NEED HELP PLEASE HELP ME PLEASE :( :( 1) Explain the similarities and differences between corporate farms and mixed-crop farms. 2) Identify two problems resulting from urban sprawl in ...
March 29, 2013 by Mary-Jane

Science - Start of Physics
I need help with the following: Given below is the position-time graph representing motions of two runners, Nick and Ian. Use this graph to determine which runner has greater average velocity. For this one, I know the answer is 2m/0s, but I don't know if they want me to ...
February 21, 2014 by Brady

Science
PLEASE HELP MY DAUGHTER WANTS ME TO CHECK HER HOMEWORK AND I DON'T KNOW TO MUCH ABOUT SCIENCE LOL! BUT PLEASE HELP PLEASE PLEASE HELP ME PLEASE 'IN YOUR OWN WORDS PLEASE' PLEASE PLEASE PLEASE 'IN YOUR OWN WORDS' IN YOUR OWN WORDS PLEASE' I'M BEGAN YOU PLEASE PLEASE ANYBODY ...
April 8, 2013 by Bella (The Parent)

math(help)
please help someone explain this please!! The length of a marathon is 138,435 ft.each stride,or step,by a particular runner is 3 ft long.does the number of strides the runner takes fit evenly into the length of the race?(EXPLAIN ANSWER PLEASE) --------------------------- IS 38...
November 21, 2013 by matt

Science - please please help
1. Explain why conduction, convection, and advection cannot occur in space. ^is it cause there is no gravity in space? 2. Does warm water rise or fall in cold water? Explain why this happens. 3. Explain why rocks and soil are poor heat sinks. Thanks in advance.
January 16, 2008 by Kim

Maths-can someone explain something to me???
hey, can someone explain vectors to me? im soooooo lost, I don't understand them at ALL. please please please help me. :(
February 18, 2013 by Corie

Physics please explain
In the quantum mechanical picture of the hydrogen atom, the orbital angular momentum of the electron may be zero in any of the possible energy states. For which energy state must the orbital angular momentum be zero? n = 1 n = 2 n = 3 n = 4 Give your reasoning. I am not sure ...
December 14, 2007 by Mary

Physics
Most housewives use spin dryers to dry their clothes. Explain how water is removed from the clothes in a spin dryer. PLEASE EXPLAIN! :)
October 31, 2009 by Shane

physics help please!!!
The tires of a car make 63 revolutions as the car reduces its speed uniformly from 94.0 km/h to 58.0 km/h. The tires have a diameter of 0.88 m. What was the angular acceleration of each tire? And If the car continues to decelerate at this rate, how much more time is required ...
March 26, 2010 by Anonymous

Algerbra
A teacher did this problem with us in class but I dontn get it please explain. 2xy + 6 ------- 3y + 4x x = 2 y = 6 answer 3 please explain!
August 30, 2011 by lee

algebra
Please explain:Simplify by removing factors of 1 explain process and exponents steps please.
May 24, 2012 by plz help

Pre-Calculus
Could you please explain how to use a matrix (matrices) to solve a system of linear equations (two variables)? My book doesn't explain it in a way I can understand. Please and thank you.
January 24, 2013 by Caroline

Social Studies
PLEASE EXPLAIN IN YOUR OWN WORDS PLEASE PLEASE HELP IN YOUR OWN WORDS PLEASE. :( :( 1) Explain the similarities and differences between corporate farms and mixed-crop farms. 2) Identify two problems resulting from urban sprawl in the western region of the United States. If ...
March 28, 2013 by Jane

Physics
Why is acceleration the same for all free-falling objects regardless of mass and distance? Please don't say according to this formula or something. could you please actually explain the theroy behind it.
April 2, 2009 by Lena

Physics
When James applied the brakes to his car, it slows unifromly from 15.0 m/s to 0.0 m/s in 2.50 s. How many meters before a stop sign must she apply her brakes in order to stop at the sign? Answers: 6.0m 37.5 m 18.8 m 48.0m Please help-I've just started Physics last week and I'm...
September 6, 2010 by Ian

math
Saying that 4<(sq.root of x)<9 is equivalent to saying what about x ? a. 0<x<5 b. 0<x<65 c. 2<x<3 d. 4<x<9 e. 16<x<81 Please help. Does this problem relate to 'x'values on the xy coordinate system ? If so please explain the concept here. If...
July 26, 2010 by Cliff

Sosial Studies
ok. so im suposed to explain the preamble and im stuck. how would i explain this.... provide for the common defense...... but then i got to explain this.... promote the general welfare...... HELP ME PLEASE..
January 13, 2010 by Presley

math please help
Inverse Trigonometric Functions please explain this to me in mathematical steps please how to solve sin^(-1) (-1/2) this equals - pi/6 i know that sin^(-1) domain and range switch from original sin but i don't know how to apply that... i need an mathematical explanation or if ...
April 14, 2011 by Amy~

HELP! PHYSICS LABS!!
CAN someone please help me...I am so confused and I have little time left to do my assingment, please! I am freaking out! Please help me!! Can someone please explain why when the centripetal force increases, so does the radius, and why when Centripetal force increases, so does...
October 2, 2007 by Cooper-Nichol

Physics
PLEASE HELP!! The x and y cooridinates of an object are given by x(t) = (10 m/s)t + (5 m/s2)t2 + (3 m/s3)t3 y(t) = (20 m/s)t - (10 m/s2)t2 + (2 m/s3)t3 where x and y are in meters and t is in seconds. What is the object's acceleration at t = 1 s? Please explain in detail how ...
September 14, 2010 by Indira

physics
1/2 [vo + (v0 + at)]t ? please explain every step
August 29, 2011 by zevi

grade 12 english
please explain...metaphors compare two things...example "gathering clouds" and "raging storms" ...am I comparing these to obama's oath...i need to know if i state this as imagery or a metaphor...please explain
January 31, 2009 by mike

please help
You know that a cetrain electroscope is charged because the foil extends when there is nothing near to influence it. when a balloon rubbed with fur is brought near (but not near to change the net charge on the electroscope), the gold foil is seen to move slightly downward. Is ...
January 15, 2009 by jen

physics
thanks for the answer drwls. can you please explain to me, how it happened?
December 4, 2011 by gem

physics
can someone please explain f1d1 = f2d2
February 21, 2012 by jenny

physics
can you please explain how the process of doping is conducted.
April 26, 2014 by Robert

Physics
Car A is moving at a constant speed of 10.0 m/s and passes Car B which is at rest. 10 seconds after, the latter follows with an acceleration of 0.5 m/s2. Determine the distance that the latter has to travel before it overtakes the former. does it require quadratic formula? Oh ...
August 12, 2012 by Anna

organic chemistry
1. Arrange the following in order of decreasing reactivity toward nitration. Fully explain please I could use some help!! A. acentanilide, b. bromobenzene, C. acetophenone, D. toluene 2. Explain why p-nitrophenol is a stronger acid than phenol itself? Would p-methoxyphenol be ...
June 17, 2014 by Anonymous

Physics
If the angle decreases what will happen to the tension? Please explain why.
February 24, 2012 by Anonymous

Physics
could you explain friction in a very easy term please
April 23, 2014 by Olumide Adesiyan

Science- Chemistry
Could someone please explain a few things? First off, how do you change a normal compound or element and change it to an ion? And second, could you please explain the net ionic equations?
February 11, 2009 by Mme. Bella

Math Help
could someone please give me an example not an example using coins, marbles, spinner, like something different that would explain the difference b/w theoretical and experimental probability. And please explain.
March 20, 2014 by Annie

math 012 please help explain
can someone please help explain how to do this problem. i have a previous posting where i tried to work the problem out, and someone tried to explain where i was confused, but im still confused. 4(2n+1)=3(6n+3)+1
February 1, 2009 by amy

Physics please explain
Can you please explain your answer. How did you get blue lamda. Is it because red and green makes blue? How do I find the value of blue lambda? A mixture of red light (vacuum = 661 nm) and green light (vacuum = 551 nm) shines perpendicularly on a soap film (n = 1.35) that has ...
November 14, 2007 by Mary

Physics
How do you calculate error analysis? For example; 200 +- 5% Please explain if possible
June 13, 2010 by 3i

physics
density= mass/volume=150kg/(30*20*500) in kg/cm^3 what is kg/cm^3 and can you explain how to use this please
January 9, 2011 by izzy

PHYSICS
Can someone please explain friction. i don't even understand the concepts parts!
January 20, 2011 by Jeanna

physics
what is the strength of the electric field at (x,y)=(3.0m, 3.0m)? where v=(120x^2-290y^2)V, where x and y are in meters. Please explain. thanks
February 6, 2013 by senko

Physics
PLEASE HELP!! The x and y cooridinates of an object are given by x(t) = 10t + 5t^2 + 3t^3 y(t) = 20t - 10t^2 + 2t^3 where x and y are in meters and t is in seconds. How fast is the object traveling at t = 1 s? Please explain in detail how to do this problem. Thanks
September 14, 2010 by Indira

Physics
Runners in the 100-m dash use starting blocks. Explain what this device does. PLEASE HELP.
October 15, 2009 by Shane

Physics
Find the length of a simple pendulum that completes 16.0 oscillations in 52.0 s. CAN YOU PLEASE EXPLAIN SPECIFICALLY , THANK YOU!
January 24, 2013 by Mike

physics-
In a string and pulley problem, will friction increase or decrease the tension.can you please explain if you can?
December 1, 2013 by Tristan

Science
I REALLY REALLY NEED HELP SO 1.I need to do an essay asking you (me)to explain what is the difference between erosion,transport,and deposition?... 2.another essay asking me to explain you (me) to explain the destructive and positive effects of a volcanic erupyion?... 3.a short...
June 14, 2014 by Alia

physics
Rubidium forms the postive Rb+ Is this ion larger or smaller then the neutral atom? Explain PLEASE
October 11, 2009 by trey

physics
Wrap a cotton wool around a thermometre,will its temperature rise? Explain your answer please
July 17, 2011 by Gift

Physics
can you please help me in telling me the uses of each electromagnet wave? like explain each briefly and what are they used for? thankyou
August 25, 2012 by wave

Physics (fix)
In a string and pulley problem, will friction increase or decrease the tension.can you please explain if you can?
December 2, 2013 by Tristan

physics
Liquids exert pressure at Right Angles to the surface of container.Please explain this with an example
August 19, 2014 by manavi

7th grade science bobpursley or Ms. sue please
Can you guys help me please? I have no idea what these answers are. Thanks! 1. Explain in detail one of the climate change cause-and effect relationships. 2. Explain why a new moon is not visible and the difference between the waxing and waning phases of the moon.
October 23, 2012 by Delilah

Math ; please please help.
1. Explain in detail how to determine the value of the independent variable in a quadratic relation if the value of the dependent variable is known. Please check my answer - You would substitute the value for the dependent variable, then you would solve for the independent ...
April 9, 2008 by Amanda

HELP Please. Geography.
I found some links for the geological history for the appalachian mountains BUT it confuses me. Can you please simplify the formation of the Appalachian mountains?? please? thanks. Basically the mountains were created due to the merging of the continents into Pangea. I know ...
April 23, 2007 by Sasha

PHYSICS. HELP.
A motorboat heads due west at 10 m/s. The river has a current that travels south at 6 m/s. a) what is the resultant velocity? b) If the river is 200 m wide, how long doe sit take the boat to cross the river? c) How far downstream is the boat when it reaches the other side? ...
November 4, 2008 by Kiley

Physics
the relationship between linear speed and net force is inverse right? can someone explain why to me please.
January 31, 2011 by Mary Sue

math help please...
1.You want to use the interval method to solve a rational inequality. Explain how to find the intervals. 2.Explain how the interval method works. 3.Explain in your own words what a reciprocal function is.
January 6, 2014 by steven

4th grade Math Help
1. explain why you would use front end estimation. Give an example of one time you might use it? 2. Explain in words how to add 352 + 958. Make sure to explain regrouping, if necessary? Please help! Thank you in advance.
September 28, 2011 by Kevin

Physics-Please check
I posted this question this morning but I'm not sure of the response Damon provided. If you were in a rotor style ride and the riders accelerate until the speed of ride is reached- if the radius of the cylinder is 5.0m and the coefficient of friction between clothes and wall ...
December 7, 2010 by Joey

Physics
r vector=(340m, 39 degrees below positive x-axis) What is rx and ry? I have no idea how to do or approach this problem, anyone please help and explain how to do this? Thank you!
September 12, 2011 by Sher

Physics
Which object has a greater momentum, a stationary tractor-trailer or a tossed tennis ball? Explain your answer please.
March 7, 2012 by Jack Binns

physics
Calculate the time required for an astronaut to free-fall 50 m on the Moon. Please show and explain steps answer is 7.9s
July 8, 2013 by jake

Official meaning
What is an official? A person who holds an office. Could you please explain more to me? What is a governor? An appointed or elected official who governs a state, colony, or province for a specific term. Could you please explain more.
May 6, 2011 by Anonymous

math
can someone please answer these questions for me?: 1. if the measure of an interior angle of a regular pentagonis 108 degrees, then the angle sum of that regular pentagon must be: A. 120 degrees B. 360 degrees C. 540 degrees D. 720 degrees 2. is it possible for a parallelogram...
December 12, 2010 by Brianna

Science
explain how a zygote could end up with an extra chromosome please help my book does not explain
February 24, 2009 by Gaby

ALGEBRA
please help me explain this in 50 words.. Explain why the equation -6(x + 3) = -6x + 5 has no solution and 7x +18 + 8x = 8(x + 4) + 7x – 14 has infinitely many solutions.
March 8, 2010 by SAMANTHA

Algebra, explain how to please
Can someone explain to me how to solve -14=2/5(9-2b) It would be greatly appreciated thank you
October 17, 2010 by June

chemistry
How can i explain the electron configuration for silcon. I Know it's [Ne].3s2.3p2 but how do i explain it. Si has 14 electrons. The fill by low energy level to higher is 1s2, 2s2, 2p6, 3s2, 3p2 I don't know what else there is to explain. If this isn't the answer you are ...
November 11, 2006 by Bryan

science
can a solution be made by mixing a solid,liquid,and a gas?Explain. please explain
October 15, 2009 by Anonymous

Algebra, explain?
So I have to solve this problem 9a=6(a+4) And then I wrote down: 9a=6a+24 but I don't know what to do from there, can someone explain to me please?
October 18, 2010 by Allyson

math
Explain how to find the restrictions on the domain of a reciprocal function. (please explain it clearly) thank you!
November 29, 2013 by Paran

Economics
Can someone please explain what factors affect a country GDP? Also, if Thailand has a GDP of 4.5% and Australia has a GDP of 2.8%, please explain which country has a better economy. Thanks for your help
September 8, 2007 by Nat

Physics HELP!!!
A ball is kicked at an angle of 50 with a velocity of 14m/s. a. how long is it in the air? b. how high does it rise? can someone please explain to me how to solve this???
October 21, 2008 by Lauren

PHYSICS PLEASE HELP!
Two nitrogen atoms are seperated by 4 cm. Each atom has 2 extra electrons. What is the force between them? is it attractive or repulsive? Explain.
January 20, 2013 by Anonymous

physics
A carton of juice remains intact even after you have sucked out all the drink from it. please explain
September 10, 2014 by manavi

programming
Explain the term "dynamic memory allocation" in C++? Please explain it in such a way i will understand it
April 23, 2014 by Olumide Adesiyan

Physics - urgent, please help!
10pm. I asked "Show mathematically that to produce an image that is the same size as the object in a concave mirror, the object needs to be at twice the focal length from the mirror." and bobpursley answered: "1/o + 1/o=1/f 1/2f + 1/i=1/f 1/i=1/2f i=2f M=di/do= 2f/2f= 1 check ...
November 17, 2008 by Juniper

pre ap physics
a car with amass of 1120 kg starts from rest and accelerates to the speed of 17.5 m/s in 18.8 s. assume that the force of resistance remains constant at 402.5 N during this time. what is the average power developed by the car's engine? answer in units of W can you please ...
February 1, 2013 by keely

Science-Space
Compare Earth and the moon in terms of size and surface gravity.Explain please. What is the relationship between the moon's surface gravity, lack of an atmosphere, and temperature range? Explain please!
March 6, 2012 by Abby

Physics
"It takes a force of 109 N to lift a stone straight up. This force gives the stone an acceleration of 12 m/s^2. Calculate the mass of the stone." My physics teacher tried to explain this problem to us, but he explained it so confusingly that I still don't get it (if that made ...
October 29, 2007 by Emily

network neutrality
1. Explain what Net Neutrality is 2. Explain who wants and who doesn’t want Net Neutrality 3. Explain the Obama administrations stance on the issue 4. Why didn’t the FCC’s ruling cover wireless providers can you please help me find a link/websites that will help me answer ...
February 11, 2012 by blaze

Physics
During the war in iraq, the us military was extremely successful at detecting and striking enemy targets. many news correspondants suggested the coalition forces had a spy satellite at an altitude of only a few hundred kilometers permanently positioned 34 degrees north ...
July 17, 2011 by Capreeca

Math help please last question
Solve the equation. 10. 2(4x -4) + 2(3x + 2) = 360 Can you please help me on this problem? Could you explain it please? I'm confused...
September 27, 2013 by Charlotte

physics
Explain what ideas led Bohr to suggest a new atomic model; and state Bohr postulates. Explain also, in words, what the correspondence principle is in atomic physics.
April 19, 2011 by qwer

science
what type of solution is formed when steam from boiling water evaporates into the air?Explain.please explain
October 15, 2009 by Anonymous

Math
Please explain how you got this answer as well! A shape has a perimeter of 3.00 M. Is it possible that one side's length is only 5 cm? Explain
January 22, 2012 by I need a answer to this ASAP please help

algebra
Please Explain: Simplify by removing factors of 1 1875v^10y^10/45v^4y^4 and explain exponents step if possible.
May 24, 2012 by plz help

AP Physics
can you please explain this to me... Were given this eqaution x = At^2 + B were A = 2.10 m/s^2 B = 2.80 m ok and this is an example problem and it's wlking us through it find the instantaneous velocity at t=t2=5.00s equlas the slope of the tangent to the curve at point P2 ...
June 13, 2009 by AP Physics

help PLEASE! URGENT!
ok, i need help w/ this problem. (4x^3 + x^2 + 3) + (x^3 + 2x^2 +1) can u please explain how to do this please? i'm very lost. Thanx! -Ally
August 16, 2005 by ally p.

History
Can you answers the Q's about a Notable American Explorer ? I need to know all about Sir Francis Drake Can you please tell me : The reason why he became an explorer Country he sailed for (if different from their country of origin please explain why) where was his attempted ...
February 23, 2010 by AvatarSandS

Science
Explain how gravitational, electrical and magnetic force act on a maglev train??? Please help I need to know please!!!! before tomorrow please
December 18, 2013 by Sebastien

Physics
I really don't get why I am getting this question wrong? Please can you explain to me how to do this question step by step so that I can understand it please? :( i have been stuck on this question for quite a while now. Determine the stopping distances for an automobile with ...
October 11, 2013 by Sarah

Physics
I really don't get why I am getting this question wrong? Please can you explain to me how to do this question step by step so that I can understand it please? :( i have been stuck on this question for quite a while now. Determine the stopping distances for an automobile with ...
October 11, 2013 by Sarah

Physics
I really don't get why I am getting this question wrong? Please can you explain to me how to do this question step by step so that I can understand it please? :( i have been stuck on this question for quite a while now. Determine the stopping distances for an automobile with ...
October 11, 2013 by Sarah

Physics
I really don't get why I am getting this question wrong? Please can you explain to me how to do this question step by step so that I can understand it please? :( i have been stuck on this question for quite a while now. Determine the stopping distances for an automobile with ...
October 11, 2013 by Sarah

Physics please help
Geosynchronous satellites orbit the Earth at an altitude of about 3.58×10^7 m. Given that the Earth's radius is 6.38×10^6 m and its mass is 5.97×10^24 kg, what is the magnitude of the gravitational acceleration at the altitude of one of these satellites? Please explain as well...
June 9, 2012 by Kevin

Physics
PLEASE ANSWER ASAP!!!!!!!!!!!!!!!!!!!!!!! a cross country runner runs 3km due east, 5km due south and 8km south west. what is the runners final displacement and what direction in true bearing form? PLEASE CAN YOU EXPLAIN IT STEP BY STEP
July 15, 2012 by Tap

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