physics please HELP !
130,958 results, page 55

gen
I need 2 resources for Head start please I need help with these please.. This is how the organization or association may contribute to increasing professional knowledge and abilities are by This knowledge and these abilities may affect success in my field of interest is by 
English
my son has vocabulary words using in sentences, I don't understand these word and their meanings, please, make a sentences using these words please 1. enthusiastic 2. assure 3. peculiar 4. pastel 5. translation 6. insisted 
math(Please please help!!!)
1) initial investment = $600 annual % rate = ? time to double = ? amount after 10 years = $19,205.00 19,205 = 600e^(10r) I do not know how to solve for r of find the time to double. 
calculus
Please help. I have an implicit answer to a differential equation of 18y*sqrt(y)=(2(x^26x+23)^3/2)/3 plus arbitrary constant. What is the particular solution to this for which y=2 when x=1. And then express this particular solution answer in an explicit form. Please help and ... 
CAL
consider the area between the graphs x+3y=1 and x+9=y^2. this area can be computed in two different ways using integrals. Please integral both ways both respect to x and to y. ANd please show your work and thank you 
AP HS Chemistry
I need help. In simple english please, what is Hund's Rule, Pauli Exclusion Principal, and the Aufbau Principal? I need to know these. Please try to be simple as possible because I'm not understanding right now, haha. Thanks!! :) 
SpanishPlease check SraJMcGin if possible
Please check if you have time we had to select the correct answer for the two questions 1.¿Ellas te escuchan? Ellas me escuchan. 2. ¿Me escuchas? Te escucho. 
Math ms sue please help again
Jim has designed a rectangle with an area of 100 square feet and a perimeter of 401 feet. What are the dimensions of Jim's rectangle?please show me how u got the answer. 
6th Grade Math Help Please
Hi, I need help because I'm really stuck on this math word. Can someone please define what rational coordinates means what? I really need help fast because this project is due today! Thank You :) 
Government Help Please
The power to establish local units of government such as counties and to control education are examples of_____ 1)reserved powers 2)delegated powers 3)implied powers 4)inherent powers Please help. thanks 
math
a tank was 10 percent full and contained 30l of water what is the full capacity of the tank please dear lectures it is not my homework i am poor in math and tommorow is my test if i could please get the work now 
Math Please check my answer
Malili has 6 1/3 yd of material. Her new skirt will take 2 1/3 yd. How much material will she have left after the skirt is made? My answer:4 Am I wrong? If I am, can you explain it to me please? Thank you in advance. 
math
the sex of to domain species is unknown but they each have a probability of X and 5 what does x equal and what is the domain species? Please someone help me don't give me the answer just please explain the process of this to me i have no clue where to start 
please read over my law
i'm supposed to write a law for abortion for my government class. And can you please read this over and give me any advice on how to make it more formal. 
Health please check my answer
Please check my answer thanks True or False The term malignant, when used in reference to hypertension is a treatable cancer I said True 
Health please check my answer
Please check my answer The term neoplasm refers to what ? A. invasive carcinoma B. malignant growth C. growth of a tissue D none of these I say it's B 
english
please help me with this. like : example, bad  worse  worst expensive  more expensive  most expensive what will be of: ___?____ ____?_____  least expensive please help 
AP World History Please Help Me Mrs.Sue
Hi I need help with this What classical institutions survived the collapse of the classical civilizations and why? I just need help with knowing Romes institutions please help. 
TrigPlease check
What are polar coordinates of (4,6) 1.Round r to nearest hundredth and theta to nearest hundredth of RADIAN My work: r^2 = x^ + y^2 r^2 = 4^2 + 6^2 r^2= 16 +36 r^ =52 r=7.21 I'm stuck on how to do theta in Radians, could you please assist 
chemistry(Please Check)
You dissolve 6.55 g of potassium nitrate in enough water to make a 250. mL solution. What is the molarity of this solution ?Answer: 0.0262 Please Check my answer 
6 grade math
Can you help me with my new math homework? Regroup each mixed number by regrouping a 1 from the whole number. 1 1/4. 8 5/12. 4 5/9. 2 1/3 Can you please explain each one of this problem for me please step by step.thank you! 
Algebra please help answer
A certain colony of bacteria triples in length every 10 minutes. It's length is now 1 millimeter. How long will it be in 40 minutes? Please help answer thx 
To Gunjan
Your posts have been removed. In the future, please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her areas. An even ... 
Physics
At 08:00hrs a 2.7 mlong vertical stick in air casts a shadow 1.8 m long. If the same stick is placed at 08:00hrs in air in a flat bottomed pool of salt water half the height of the stick, how long is the shadow on the floor of the pool? (For this pool, n = 1.64.) I can't get... 
Writing
I'm not sure how to edit this business letter. Please help! I'm not sure what to do when there is an address for another business? Please help edit paper! Thank you! Dear Ms. Drager: In connection with an examination of our financial statements by Templeton and Associates, ... 
Health please check my answer
Please check my answer thanks What does the abbrevation "AD" represent in a medical report ? My answer is both ears 
pre calc
area of triangle XYZ given:side z=11 side x=7 and side y=13 what are the angles and area please? please explain 
precalculus/check please
Find the difference quotient by using f(x+h)−f(x)/h 1) f(x) = √(2x+1) answer (√(2x+1+2h)  √(2x+1))/h can you check please 
Physics..help please
A rifle with a weight of 35 N fires a 4.0 g bullet with a speed of 250 m/s. (a) Find the recoil speed of the rifle. ___m/s (b) If a 700 N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle. ___m/s 
physics
A 6.25gram bullet traveling at 365ms1 strikes and enters a 4.50kg crate.The crate slides 0.15m along a wood floor until it comes to a rest. 4. What is the coefficient of dynamic friction between crate and the floor? 5. What is the average force applied by the crate on the ... 
Physics
A Block weighing 72.2 N rests on a plane inclined at 20.0 deg. to the horizontal. The coefficients of static and kinetic friction are 0.22 and 0.12 resp. What is the minimum magnitude of F that will start the block moving up the plane? (I also got 9,74 N for this.. but wrong ... 
Physics
A 1.00kg beaker containing 2.0 kg of oil (density = 916 kg/m3) rests on a scale. A 2.00kg block of iron is suspended from a spring scale and is completely submerged in the oil. Find the equilibrium readings of both scales. I was able to find the equilibrium reading for the ... 
Physics Please help!
In each of the following cases, the mass is 7.99 kg and the radius is 7.50 cm. (a) What is the moment of inertia (kg/m2 ) of a solid cylinder rotating about an axis parallel to the symmetry axis but passing through the edge of the cylinder? (b) What is the moment of inertia (... 
Physics(Please check)
There is a rod that is split into two sections. The left side is copper with value of 390, temp of 100 degrees c and the length is 2m. The right side is silver, 420, temp 20 degrees celsuis, and length 1m. I need to calculate the temperature. 390 X 1 X 100t / 2 = 420 X 1 X t... 
Physics(Please respond)
There is a rod that is split into two sections. The left side is copper with value of 390, temp of 100 degrees c and the length is 2m. The right side is silver, 420, temp 20 degrees celsuis, and length 1m. I need to calculate the temperature. 390 X 1 X 100t / 2 = 420 X 1 X t... 
Physics
train car with mass m1 = 521 kg is moving to the right with a speed of v1 = 7.9 m/s and collides with a second train car. The two cars latch together during the collision and then move off to the right at vf = 5.1 m/s. 1)What is the initial momentum of the first train car? I ... 
Physics, please help!!!!
A 3.00 kHz tone is being produced by a speaker with a diameter of 0.175 m. The air temperature changes from 0 to 29°C. Assuming air to be an ideal gas, find the change in the diffraction angle My solution v directly proportional to sqrt T v = sqrt 302 =17.382 lambda = v/f = ... 
PLEASE VIEW URGENT!
I do not understand this question. Could you please explain? "Beneatha is particularly bitter, but Ruth defends Walter. What does Ruth say?" (Act III, SceneI) For Further Reading * A Raisin in the Sun  SraJMcGin, Monday, September 3, 2007 at 7:36pm I remember answering this ... 
Physics HELP PLEASE
two spherical objects are separated by a distance of 9x10^3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a result, each object ... 
please help physics!!
Two toy ducks attached to each other by a string, are being pulled by a child. The front duck is m1= 5.0 kg and the back duck is m2= 2.0 kg. The happy guy pulls them with a force of 10 N and friction exists. The toys are moving with constant velocity. A) if the coefficient of ... 
Physics
A rabbit runs in a straight line with a velocity of +1.3 m/s for a period of time, rests for 11 s, and then runs again along the same line at +0.65 m/s for an unknown amount of time. The rabbit travels a total distance of 1080 m, and its average speed is 0.79 m/s.What is the ... 
physics
A mass of 20 kg on a plane inclined at 40 degrees. A string attached to that mass goes up the plane, passed over a pullley and is attached to mass of 30 kg that hangs verticalyy. a) find the acceleration and it's dirction b) the tension in the string. Assume no friction. I ... 
Physics
You are traveling in a convertible with the top down. The car is moving at a constant velocity 27.7 m/s, due east along flat ground. You throw a tomato straight upward at a speed of 12.8 m/s. How far has the car moved when you get a chance to catch the tomato? I do not ... 
computers please check my answer
please see if my answer is correct thanks :) What is the purpose of the yellow lightbulb on a PowerPoint slide ? The purpose of the yellow light bulb above the Office Assistant indicates that it has a tip. 
eth. help please
Ms. Sue please send me some informations that will help me answer those two questions. What do these statistics reveal about Asian diversity in America? What do you believe is the future of Asian diversity in America? Thanks. 
sci
Describe your assigned method and how it is used to evaluate geologic time. My assigned method is Relative Dating. The only thing I can find is in wikipedia but can someone please help me find more info on this please. 
statics
If you sent out 5000 census to households and 3700 answered would my percenatge be 1.35%. please tell me if i answered this corrrectly I took the 5000 and divided it with the 3700 and I received the answer of 1.35% Please help thanks Shelley. 
MATH please help
Out of 42 kids in a class twice as many failed Ela as math,4 failed both. If 7 failed neither, find how many failed each subject. Please help and show work it would be great thanks i really need help thanks 
Chemistry
Can someone please explain this to me?! Please! Thank you! How much (in kilograms) ethylene glycol antifreeze (C2H6O2)(molar mass 62.02 g/mol) has to be added to 14.4 kg of water to get a mixture that freezes at 15.5 degrees C. For water Kf = 1.86 degrees C kg/mol 
general
How to prepare writtern test for solitech company banglore?What are the topics need to be consentrate for written test??please help me....The company will conduct an interview on next week Tuesday..So please help me:)SOlitech(India). 
Geometry
What is the area of an equilateral triangle with sides of 10 inches and height of 7 inches? Can you please check my answer and my reasoning? A. 44 sq. in. B. 20 sq. in. C. 70 sq. in. D. 35 sq. in. I picked D, because I took 10x7=70and divided that by 2, which equals 35 sq. in... 
Chemistry
If 0.200mol of nitrogen gas and 0.200mol of oxygen gas react, what is the limiting reactant? N2(g)+O2(g)→2NO(g) How many moles of NO are produced according to the equation? Please show how to perform this equation with the answer please. 
English
can anyone please summarize the short story "an ordinary soldier of the queen" because I didn't understand it at all and I am very confused ? I read it 3 times but still dont understand what happened, if anyone has read it please help:) very appreciated:) 
Physics
At the beginning of a new school term, a student moves a box of books by attaching a rope to the box and pulling with a force of 92 N at an angle of 30 as shown in the figure below. The box of books has a mass of 22.0 kg, and the coefficient of kinetic friction between the ... 
Physics repost
I know I have posted this question before but I have tried everything under the sun to no avail. Please help a clueless student!!!! A piece of copper wire is formed into a single circular loop of radius 13 cm. A magnetic field is oriented parallel to the normal to the loop, ... 
PHYSICS please help
IMAGINE a building 6400km. high. On the ground floor, a person weighs 175lbs when he steps on a spring scale how much would the man weigh on the same scale if he were standing at the top floor? HINT: Note that 6400km is also the radius of the earth so that the top floor is ... 
please help PHYSICS
IMAGINE a building 6400km. high. On the ground floor, a person weighs 175lbs when he steps on a spring scale how much would the man weigh on the same scale if he were standing at the top floor? HINT: Note that 6400km is also the radius of the earth so that the top floor is ... 
Physics (PLEASE HELP!)
Two point charges, the first with a charge of +3.25×10−6 C and the second with a charge of 4.63×10−6 C , are separated by 25.5 cm. Find the magnitude of the electrostatic force experienced by the positive charge. Is the magnitude of the force experienced by the ... 
physics
Calculate the heat given off by the hot water. GIVEN: Original quantity of water (hot water) 50g Orig.temperature :40°C Final temperature: 9°C Final quantity of water: 264g Increase in quantity of water 214g. PLEASE KINDLY SHOW ME THE EQUATION FOR THIS THANK YOU. <3 
physics
Calculate the heat given off by the hot water. GIVEN: Original quantity of water (hot water) 50g Orig.temperature :40°C Final temperature: 9°C Final quantity of water: 264g Increase in quantity of water 214g. PLEASE KINDLY SHOW ME THE EQUATION FOR THIS THANK YOU. <3 
physics
Calculate the heat given off by the hot water. GIVEN: Original quantity of water (hot water) 50g Orig.temperature :40°C Final temperature: 9°C Final quantity of water: 264g Increase in quantity of water 214g. PLEASE KINDLY SHOW ME THE EQUATION FOR THIS THANK YOU. <3 
physics
Calculate the heat given off by the hot water. GIVEN: Original quantity of water (hot water) 50g Orig.temperature :40°C Final temperature: 9°C Final quantity of water: 264g Increase in quantity of water 214g. PLEASE KINDLY SHOW ME THE EQUATION FOR THIS THANK YOU. <3 
physics please helpp
A copper sheet of thickness 2.09 mm is bonded to a steel sheet of thickness 1.35 mm. The outside surface of the copper sheet is held at a temperature of 100.0°C and the steel sheet at 26.3°C. a) Determine the temperature (in °C) of the coppersteel interface? b) How much ... 
Physics
A soccer ball is kicked with resultant velocity of 22.6 m/s at an angle of 60 degrees. What is the time to Apex, what is the range of the kick? r = 22.6 angle = 60 degrees 1)Vxi=sin(60)(22.6) = 19.57 Vyi=cos(60)(22.6) = 11.3 2)T= VyfVyi/A 011.3/9.81 = 1.1 sec time to apex ... 
English please check my answer
Please see if I have the correct answer thank you The patient went into cardiac arrest. The (iac) portion of the word is A. noun suffix B. plural suffix C. combining form D. adjective suffix My choice is B 
Science (please help)
Review Ch. 10 and 11 of your text, then complete the following: Provide at least three freshwater and three ocean water resource challenges by filling in the following table. I have each of the three sources but I am unsure what they mean by "description" can someone help please 
To Ani  re Afrikaans post
I have deleted your post because you included your email address in it. That is not a safe thing to do online. Please remember NOT to post any personal information. Please also remember to ask a specific question. No one will be able to help you if you don't let us know ... 
Chemistry
At a certain temperature, the Kp for the decomposition of H2S is 0.832 H2S (g) < > H2 (g) + S (g) Initially, only H2S is present at a pressue of 0.121 atm in a closed container. what is the total pressure in the container at equilibrium? Please tell me how to do it ... 
Chemistry
At a certain temperature, the Kp for the decomposition of H2S is 0.832 H2S (g) < > H2 (g) + S (g) Initially, only H2S is present at a pressue of 0.121 atm in a closed container. what is the total pressure in the container at equilibrium? Please tell me how to do it ... 
Math for 7th graders///////
In a survey 182 people said they liked chocolate ice cream the best. This is 35% of all the people surveyed. How many people were surveyed??? Please tell me the answer and please show your work so I could understand how you figured it out!??? 
Science please help
I am doing a crossword puzzle that has statements that you write their answers in the right column. I have two that I can't get. Heart of a scientific investigation what I have so far: et standard of comparison for checking the results of an experiment what i have so far... 
Chemistry
(DrBob222 please help me) What would be the final temperature of the system if 16.6 g of lead at 138 ◦C is dropped into 23.4 g of water at 8.68 ◦C in an insulated container? The specific heat of lead is 0.128 J/g◦C. Please explain with the numbers plugged in ... 
vector calculus
Can someone help me with this please. A vector field in cylindrical polar coordinates is given by V = R Rˆ + R 3 s i n ( φ ) c o s ( φ ) φˆ + 3 z kˆ where Rˆ, φˆ, kˆ are the appropriate unit vectors. Translate this vector field into the Cartesian x, y, z coordinate... 
american history please help very important
I need to do very good on this and i have to find 4 events before ferdands murder that led up/contributed to the start of world war 1. And i have to give specific examples. Please help me out!!!! It would mean so much 
EVERYTHING
Can anyone help me with these. I want different views please. In separate paragraphs describe your approach to classroom organization, motivation, discipline, and teaching styles, given your current perspective. Contrast each element of this paper with the opposite approach (... 
math
so it would be like 500 divided by 140 for ted and tony ..... 120 because of ted and tom but wait i think i am doing this wrong can you at least give me the answers and i will follow you and that for you to explain to me please i give up i hate percents ....its due tommorow ... 
College Chemistry
Calculate pH of a 1.0 mol L 1 boric acid solution. (Ka(H3BO3) = 5.8 x 10 power 10 Please solve this problem. My computer does not have the power symbol. Can you please show maths and steps. Is mollar mass required of the above. Is log and constant above used. Thanks 
general
What are the various longterm and shortterm impacts of food wastage? Please give answers from multiple area eg. cultural,social,economics etc. Global warming I have found out about it so please give a more insightful answe 
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 causeand effect relationships. 2. Explain why a new moon is not visible and the difference between the waxing and waning phases of the moon. 
Statistics & Probability
If X is a normal random variable with mean 11, and if the probability that X is less than 12.10 is .72 , then what is the standard deviation of X? Select one: a. 3.00 b. 6.25 c. 2.50 d. 1.25 Please note that the answer for the above is stated as c.2.50. However, my answer ... 
algebra
Please Helpppp!!! Mother having a hard time with radicals. A playground is shaped like a rectangle with a width 5 times its length (l). What is a simplified expression for the distance between opposite corners of the playground? Please can you post stepbystep so I understand... 
TRIGONOMETRY
Can someone please show me step by step how to calculate the modulus and the argument for these complex numbers? I have a trig final next week and I am trying to finish this study guide so I am prepared. Thank you so much! If you can, please show my how you get the answer so I... 
Math
A commercial refrigerator unit accidentally releases 12.5 L of ammonia gas at SATP. Determine the mass and number of molecules of ammonia gas released. Please if possible show the steps because I have an exam in an hour and I was trying this question and Im clueless. Please ... 
writing please someone help!!!
which traits are strongest in your persuasive essay: ideas, organization, voice, word choice, sentence, fluency, or conversation? provide textual evidence from your essay to support your answer. Please can someone help I'm having trouble figuring this one out!!!! 
Please Help ASAP!! Algebra
A number cube is rolled with these results: 64 ones, 67 twos, 73 threes, 59 fours, 72 fives, and 71 sixes. What is the experimental probability of rolling an even number? Write your answer as a percent, to the nearest tenth of a percent... A. 51.9% B. 48.5% C. 53.6% D. 46.8% ... 
Math
Can someone please help me with this. I'm not getting the right answer. Jill traveled to canada and bought a lamp for 460 canadian dollars. In US dollars (to the nearest cent)this is equivalent to 577.25 517.77 450.52 480.66 Can you please show me how you got your answer.The ... 
MATH HELP PLEASE!!
Given a long algebraic equation, what are some strategies that you can use to make simplifying and evaluating the equation more efficient and accurate? How do inverse operations help solve algebraic equations? Give a realworld scenario where this might be modeled. Help, ... 
please check my answer
please check my answer thanks :) four chairs at $22.00 each 1 table for $212 and umbrella for $85 What is the total of this bill if the sales tax is 6% $22 x 4  88 212 + 85  385 x 0.6 %  
please check my answer
please check my answer thanks :) four chairs at $22.00 each 1 table for $212 and umbrella for $85 What is the total of this bill if the sales tax is 6% $22 x 4  88 212 + 85  385 x 0.6 %  
Reading HELP PLEASE!!!!!!!!!!!
Can someone send me like a book report form? Like the way to write a book report? I neeed help please! Oh and thanks Miss Sue for the help! 
social studies
I need to know some resources that are in the countries of the south. Please LIST the resources. DON'T give me any sites. I need help, I tried to find some, but I couldn.t Please help me. THANKS!:):):):):):):):):):):):) 
chemplease help me!!
when a 25.0 mL sample of an unknown acid was titrated with a 0.100 M NaOH solution. Determine Ka for the unknown acid. Volume NaOH = 12.5 mL; pH=3.80 please help me explain in details!!! 
math
HELP PLEASE! I don't understand how to do the problem! Please help thanks(: The problem is: your bike tire has a radius of 14 inches. If your tire makes 100 revolutions, how many feet does your bike travel? THANKS! :D 
Science (Please help!!)
creating a prototype and troubleshooting are steps in the development of a: a new scientific theory b: a new experiment c: a new scientific law d: a new technology ******* Please help =) 
Statistics
The rate of chlamydia infection was reported as 2.78% in a recent year. Under certain conditions, a preliminary screening test for the chlamydia bacterium is correct 96% of the time. One person is randomly selected from the population. find the true positive. Can someone ... 
Physics
Consider the system shown in the figure with m1 = 25.00 kg, m2 = 10.20 kg, R = 0.18 m, and the mass of the uniform pulley M = 5.00 kg. Object m2 is resting on the floor, and object m1 is 4.00 m above the floor when it is released from rest. The pulley axis is frictionless. The... 
Physics (please help!!!!)
Lacking thrust, a glider can’t maintain level flight at constant speed in still air. It can, however, glide at a constant speed at a fixed downward angle. Find this angle in terms of the lift and drag coefficients CL and CD. Recall that lift is perpendicular to the glider’... 
Physics
A man stands on a freely rotating platform, as shown, holding an exercise dumbbell in each hand. With outstretched arms, his angular speed is 1.5 rad/s. After he has pulled his arms in, as shown, his angular speed is 5 rad/s. What is the ratio of his final rotational KE to his... 
Physics
A man (weighing 915 N) stands on a long railroad flatcar (weighing 2805 N) as it rolls at 18.0 m/s in the positive direction of an x axis, with negligible friction. Then the man runs along the flatcar in the negative x direction at 40.00 m/s relative to the flatcar. What is ... 
physics
Please Help, Two point charges are fixed on the y axis: a negative point charge q1 = 23 µC at y1 = +0.23 m and a positive point charge q2 at y2 = +0.33 m. A third point charge q = +7.8 µC is fixed at the origin. The net electrostatic force exerted on the charge q by the ...