# physics please HELP !

128,227 results, page 88

### 8th Grade Connections Academy

1. What is the product of (5.1 x 10^3) x (3.2 x 10^3)? (Please express your answer in scientific notation.) 16.32 x 10^6 1.632 x 10^7 16.32 x 10^9 1.632 x 10^10 2. What is the product of (7.28 x 10^-2) x (9.1 x 10^-2)? (Please express your answer in scientific notation.) 6....

### research

What year did the Holocaust begin?when did it end and how? I've already answered that twice in the last day or so on this board. Please look back on all of your posts and their answers. If you don't want to read the answers you get on this board, fine. But please don't keep ...

### Trig

Please EXPLAIN the steps on how to solve these problems. Please provide detailed steps. A rectangle picture is 12 by 16 inches. If a frame of uniform width contains an area of 165 square inches, what is the width of the frame? The length of a rectangular garden is 6 feet more ...

### Math

Suppose the central Park Coffee Shop sells a cup of expresso for 2.00 and a cup of cappuccino for 2.50. On Friday Destiny sold 30 more cups of cappuccino than expresso for a total of 178.50, worth of expresso and cappuccino. How many cups of each were sold? I am learion to ...

### geometry

prove: the segment joining the midpoints of the two sides of a triangle is parallel to the third side. the coordinates are A(0,0)B(a,0)on the the x axis, and C(c,d), M is midpoint and the coordinates of M is (c/2,d/2) and N is also a midpoint whose coordinates are (a+c/2, d/2...

### Science

PLEASE HELP ME!!!!!! I need to know at least 5 things about the puriotic table. PLEASE!!!!! Here is a periodic table on the web. Look on the left hand side and scroll all the items listed there. There are many many items listed; i.e,many more than five. http://www.webelements....

### Ms sue please help

Hey ms sue can you please help me to simplify this paragraph? Raynaud's disease occurs when the small arteries (arterioles) that serve the fingers, toes, ears, or nose go into spasm. When arterioles go into spasm, they cut off blood supply and cause digits (fingers and toes) ...

### GK or Dr.Bob222...Chemistry please help...

Please refer to the previous post Chemistry Help Please. Moles of S203^2- = (molarity)(volume): =(0.032400 mol/L)(0.053 litres S203^2-) = 0.03240 moles S203^2- Posted by DrBob222 on Wednesday, October 22, 2008 at 9:37pm in response to GK..please check...Chemistry Help Please I...

### Health/Nutrition

I have a real bad teacher for this subject and she gave us a lot of homeowrk.I need an answer fast on these two.Its a crossword puzzle.Here they are: 1)A chemical chain that is the basic component of all liquids. 2)A chemical substance in food that helps maintain the body. ...

### Intro to World Religions

Hi, for my review and response paper on gospel of mary I have to inegrate it with other readings that we've done in class: Crow, Osage, Seneca, and Gikuyu creation stories. Eliade. Hymn to Aton (Egyption). Rosemary Ruether: Three Classical Creation Stories. Quran 7:11-31, 54-...

### math

Help!! I cant find this word fesselation. I looked in books and the internet nothing please help Spell it this way: tesselation ok do you know wht it means tesselation. I tried it both ways tesselation and fesselation.F ound nothing HELP!!!! I cant find tesselation and its due...

### SCIENCE

CAN SOMEONE PLEASE HELP ME AND TELL ME IF IM RIGHT even a guess would be good ive been trying 4 a answer since 6:00 PLEASE help me :/ i think that the 2nd one is correct because i no that energy is not lost when water is boiled it is gained because of the bubbles and electrons...

### Business Decision-Making

I am trying to figure this out for my business decision-making class, it is to be a power point presentation 3 pages; sounds simple but I am totally lost. The first slide is to explain how statistical Tools can be valuable to a business, slide 2 specific examples where a ...

### Spanish-6th grade-Please check my answers

Could you please check these I think they're correct but I'm not sure. 1.How old am I? Tengo once años. 2.How old is your father? Mi padre tiene cuarenta y seis. 3.Do I have siblings? Sí,tengo dos hermanos. 4.Son mayores or menores? Son mayores. 5.Are you older or younger ...

### physics

In Physics, it is important to use mathemat- ical approximations. For instance, in a small angle approximation, tan α ∼ sin α . Find the largest angle α for which the dif- ference of sin α − tan α is less than 3.52% of the sin α value.

### Physics

A block attached to a spring with unknown spring constant oscillates with a period of 7.0 s. Parts a to d are independent questions, each referring to the initial situation. What is the period if... The mass is doubled? The mass is halved? The amplitude is doubled? The spring ...

### math

We consider the non-homogeneous problem {y''-16y} = {256x^{2}} First we consider the homogeneous problem {y''-16y} = 0 : 1) the auxiliary equation is a r^2+br+c = =0 . ________________ 2) The roots of the auxiliary equation are (enter answers as a comma separated list). ...

### Math

Please show me how to solve: Hannah took a survey of 500 students at her school to find out whether they liked baseball or football. The results are shown in the Venn diagram. How many of the students surveyed like football? 28% liked baseball, 32% liked both, 16% liked ...

### physics please help

One lump of clay traveling at 14.98 m/s overtakes a second lump traveling at 4.98 m/s. After collision they are stuck together. To the nearest tenth of a m/s what is their common velocity? -------------------------------------------------------------------------------- 4 If ...

### math urgent please help

Mrs Buttler bought 1,800 shares of Stairwell Mutual Fund At an offer price of $3.00 per share. She later sold the shares at a net asset value of $4.60m per share. During the time Mrs Buttler owned the shares, Stairwell Mutual paid adividend of $0.80 per share. What is Mrs ...

### art

Could you please check my answer please...thank you Which of the following is the best evaluation of the artwork based on the criterion that the piece feature imaginary creatures or things. 1. The artwork is successful because it features a fully clothed raven-headed winged ...

### eth. need some info please

Ms. Sue, Please guide me to some info or data in order to discuss this statement. According Pyne, how have post-9-11 government responses affected prejudice and discrimination against Muslims, Arabs, and related groups? List two to three characteristics of Orientalism. How ...

### math

i'm working on this question and honestly I have tries but I don't understanding anything about the question, can someone please HELP me? I have been posted this question and hoping for someone can help me please! For the following scenario, develop an equation and a set of 5 ...

### AP Physics B (Heat Engines)

18. (II) At a steam power plant, steam engines work in pairs, the heat output of the first one being the approximate ehat input of the second. Th eoperating temeprautres of the first are 680 degrees C and 430 degrees C, and of the second 415 degrees C and 280 degrees C. If the...

### Physics please check

A charge of -3.00 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.125 m). The charges on the circle are -4.60 µC at the position due north and +5.00 µC at the position due east. What is the magnitude and ...

### algebra help

I am really confused on this question can some one help me out please the length of a rectangular playing field is 5 ft less than twice its width If the perimeter of the playing field is 230 ft. find the length and width of the field. I believe i am suppose to start with P+2w+...

### English

Ms Sue, could you please check my sentences, please? I still have a few doubts. 1) How long is it since you (last) played with the band? Since last year. Or just last year. 2) How long ago did you last play with the band? A year ago. When describing a picture in a book, would ...

### Physics

Speedboat (A) negotiates a curve whose radius is 115 m. Speedboat (B) negotiates a curve whose radius is 240 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of the boats? My physics optional extra work: This would be helpful so...

### Physics

I have to compare and contrast three types of tires, and relate them to physics. I've chosen: <li> Racing tires <li> Winter tires <li> All season tires I've chosen to compare them on: <li> Tire tread pattern <li> Rubber compound <li> ??? As ...

### physics

i figured out the ratio its 1.10 , don't know how to get the second part please help!! my understanding is not good enough to answer part 2 Pretend you have two containers, one filled with ethyl alcohol and the other filled with benzene. How would you show the distance light ...

### physics

hey, i was wondering if someone could explain and help me with this problems. please and thank you! A person holds an object of mass m = 4 kg on the palm of the hand with the arm stretched as shown in the attached figure. Use the torque equilibrium equation to determine the ...

### Early Child Ed.

Would you please check these questions and my answers? Please let me know the ones you seem to think are wrong. 1. You want children to walk in the hallway. If they begin to run, the best thing to say to redirect them is: A. "Stop Running." B. "Walk in the hallway." C. "...

### math

Can someone please help me with this word problem!?! I know the answer which is 784 feet. But I have no clue how to solve it. Can someone please show how to solve this problem? The word problem is: The melt in Your Mouth Chocolate Factory is a rectangular building. The ...

### Please Check Answers for Health

Please check my answers because I need to do good at this. 1. When consuming fats the healthiest choice is foods high in? A. saturated fats B. unsaturated fats * C. trans fat D. cholesterol 2. The body's main energy source should come from what essential nutrient? A. protein* ...

### English Punctuation

Where do the commas go in these sentences? Please check. 1. Most criminals are armed, and it is unlikely that a ban on guns would ever be passed in the United States,and, therefore, it is mandatory that police officers be armed. 2. Police officers must be knowledgable about ...

### Math

Theo made the table below to show the number of middle school students who attented the last football game. if this data were displayed in a circle graph, how many degrees would be in the sector representing the 8th grade Grades 6,7,8 # of students in 6th grade: 375 7th grade...

### 7th Grade Science Help Please

For his science project, Austin wants to determine if the pH of standing rainwater and places it indoors in a spot that does not receive a lot of sunlight to limit evaporation. Using a pH testing kit, he measures the pH of the water once a day for 20 days. What is the ...

### Chemistry URGENT

I am having a hard time understanding how to calculate pH. my textbook states that that pH =-log[H^+]. I have two questions that asks: What is the H^+ concentration in an acid with of pH 4.6? Express your answer as a power of 10. What is the H^+ concentration in a base with a ...

### accounting

1)utilities expense, 2)accounts payable, 3)commissions,4)capital, 5)withdrawals.where do they appear? income statement or statement of changes in owner equity or balance sheet.i think #1 is balance sheet #2 is income statement, #3 statement of chnges in owner equity #4 i think...

### Physics

A 0.340 kg particle moves in an xy plane according to x(t) = -15.00 + 2.00t - 4.00t3 and yet) = 25.00 + 7.00t - 9.00t2, with x and y in meters and t in seconds. At t = 0.700 s, what are (a) the magnitude and (b) the angle (relative to the positive direction of the x axis) of ...

### Physics

A car is stationary at a stop sign when it is hit directly from behind by a truck of mass 3000kg which was travelling at a speed of 9 m/s immediately before the collision. The two vehicles lock together and move forward with an initial speed of 6 m/s. a) what is the mass of ...

### Physics

A car is stationary at a stop sign when it is hit directly from behind by a truck of mass 3000kg which was travelling at a speed of 9 m/s immediately before the collision. The two vehicles lock together and move forward with an initial speed of 6 m/s. a) what is the mass of ...

### physics plz

Can you help please Question1: A car makes a banked turn on a "real" road (meaning you can not ignore friction), which of the following are forces that act on the car: (for full credit you must select ALL that are true) A)centripetal force B) friction C) normal force from the ...

### science

1.scientists who capture fish from depths of 1000m or more for study have to bring them to the surface in pressurized containers. why do they do this? 2.a car of mass 600 kg has four tyres each of surface area 0.005m^2. determine the pressure exerted by each tyre on the ground...

### physics

The water storage tank has a diameter of 0.5m and contains 150L of water. You find a small hole rusted in the base, with a diameter of 10mm. what is the velocity of the water flowing out of the hole? So, i feel like I need to somehow use both Bernoullis equation and continuity...

### Art

The ancient civilizations of the Mediterranean region were noted for their great battles and powerful rulers. Post two artworks from two different cultures and compare how the idea of power is reflected in your two examples, include the name of the works. Talk about how the ...

### math please help

The speed of a passenger train is 8 mph faster than the speed of a freight train. The passenger train travels 310 miles in the same time it takes the freight train to travel 270 miles. Find the speed of each train. What is the speed of passenger train? What is the speed...

### physics

Need help with this short physics question there is a race betwen person A and person B. They both start at the same time, but B initial position is 10m left of peron A. person A travels 100 meters right in 20 seonds, Person Btravels 112.5 meters right in 15 seconds. what is ...

### slis

hi, im in the 9th grade and i need help I need help with my math. the following questions are? we are learning parallel lines and perpendicular lines. think you can help me? e) parallel to y=0 and passes through (1,2) f) perpendicular to x=-1 and passes through (3,5) g) slope ...

### Physics. Please help. Thanks

in the last three years, Fred's basketball team won 30 more games than they lost. if they won 150 games, what was their ratio of wins to losses? What are three different ways to show the ratio? what is the unit rate if Ramon drives his car 180 miles in 3 hours? what is the ...

### A.P. Economics (Please check if I'm right)

Leaving class today, you decide to start an economics tutoring business. Your first step is to get the two categories of capital. Next you need to obtain the other factors of production. Specifically, what do you need in terms of land, labor, and capital. My Ans: Physical ...

### Electrical versus Gravitational Forces (Physics)

Multiple Choice help: * _____ forces between charges are enormous in comparison to ______ forces. * A. electrical, gravitational (possible?) B. gravitational, electrical (possible?) C. positive, negative (wrong, I think) D. negative, positive (wrong, I think) According to the ...

### Math

Good evening. I am having a problem solving this problem and need some help step by step please. One tank is filling at a rate or 3/4 gallon per 2/3 minute. A second tank is filling at a rate of 5/8 gallon per 1/2 minute. What tank is filling faster? Please explain step by step.

### physics

i'm in 5th grade and i really need some help. in science, we got this science packet that's really hard. it's really hard. the question is: Jarrod measured the temperatures of two containers of water with two different thermometers. The water in Container A was at 80 degrees ...

### Physics

Peggy drives from Cornwall to Atkins Glen in 52 min. Cornwall is 75 km from Illium in a direction 26° west of south. Atkins Glen is 27.1 km from Illium in a direction 16° south of west. Use Illium as your origin. (a) Draw the initial and final position vectors. (Do this on ...

### HELP MS.SUE MATH 5TH GRADE

Theresa wanted to find the height of her school's flagpole in inches. Theresa is 5 feet and 2 inches tall. She estimated that the flagpole was about 10 times her height, so she created the formula below to find the flagpole's height. height = (12 x 5 + 2) x 10 Using Theresa's ...

### Physics

Which of the following best describes kinematics? a) Kinematics is a part of mechanics that involves the description of motion. b) Kinematics is the branch of physics that deals with the motion of objects and the action of forces on the objects. c)Kinematics is the study of ...

### Physics

Superman rushes to save Lois Lane, who has fallen (has been pushed?) from a window 120 m above a crowded street. Superman swoops down in the nick of time, arriving when Lois is 2.0 m above the street and stopping her just at ground level. Lois has a mass of 65 kg. Ignore air ...

### differential equations

the directions are to determine whether or not the equation is exact if so then solve it. the question is (x-y^3+ysinx)dx = (3xy^2+2ycosx)dy i solve and i got that it is exact because My is -3y^2+2ysinx and Nx is -3y^2+2ysinx since m and n are equal then they are exact then i ...

### Poetry

Please check this. "Hope is the thing with feathers That perches in the soul, And sings the tune--without the words, And never stops at all, "And sweetest in the gale is heard; And sore must be the storm That could abash the little bird That kept so many warm. "I've heard it ...

### ENGLISH

Please check for any errors. Please make corrections. Thanks!!! Alexandria treasure may have been found after more than three hundred years! The wreckage of a ship believed to be Alexandria has been located off the coast of Florida. The Alexandria disappeared during a ...

### Current Event

I have to bring in a newsworthy current event article from the Kamloops Daily News or the Freepaper. this article can not be related to sports. It can be related to government/globalwarming. Can someone please find a good current event article from the Kamloops Daily News or ...

### Math

option 1: 2-by-3, 3-by-4, and 4-by-5 option 2: 2-by-2 , 3-by-3 ,and 4-by-4 option 3: 3-by-5 , 3-by-6 , and 3-by-7 For each pyramid option, calculate the total number of shoeboxes used after each row has been completed. That is calculate the total number of shoeboxes in the top...

### grammar

Label each clause subordinate or independent. 1. If you visit the city of Chicago.subordinate 2.the Art Institute of Chicago is quite famous independent 3.While the Chicago White Sox play in Comiskey Park. subordinate 4.after the sears Tower was built subordinate 5.the Chicago...

### Physics

Calculate the kinetic energy that the earth has because of its rotation about its own axis. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total energy used in the United States in one year is about 9.33 109 J. ...

### Physics

At bat a baseball player hits a ball at a height of .889 m. The ball leaves the bat at 51 m/s at an angle of 81 degrees from the vertical. The ball skims the top of a 2.74 m wall as it leaves the field. a.) Draw position, velocity and acceleration graphs describing the ball ...

### chemistry - s103

Post your question. Perhaps we can help. Is there anyone out there who understands Q5 of tma06 for s103? I don't understand a word of it hi i think that the functional group are NH2 and the c=0 does anybody come up with that they to me are all amine part iii i get O and N as ...

### English ASAP Please

Which one of the following sentences uses pronouns correctly? A. Please give paul and I your individed attention. B.Jacob and me are going to set a meeting date. C.Carol told Sylvia and he the good news. D. Send the package to Tanya and him. The rule is that you must use ...

### physic

1)a pitched ball is hit by a batter at a 45 degree angle and just clears the outfield fence,98m away. assume that the fence is at the same height as the pitch and find the velocity of the ball when it left the bat. 2)an arrow is shot at 30.0 degree above the horizontal. it ...

### Math

Does -3/4 belong in the group, integers and rational numbers. in order it goes:Natural #s-1,2,3,4... Whole #s-0,1,2,3,4... Integers-whole #s & opposites(negatives) Rational #s-numbers written in fractions or decimals Please read: (Broken Link Removed) -3/4 is a rational number...

### Benelux Economic Union

When was the Benelux Economic Union established and what was its sole purpose? Online Content Assignment Using the sites listed on the left, please answer the questions below in complete sentences. The site reference is provided in parentheses at the end of each question. When...

### Physics-not sure how to find the charge q

Posted by ~christina~ on Sunday, March 30, 2008 at 9:14am. Two small silver spheres with a mass of 10.0g, are separated by 1.00m. Calcuate the fraction of the electrons in one sphere that must be transfered to the other to produce an attractive force of 1.00x10^4 N (about 1 ...

### Physics

A worker applies a constant force of magnitude F = 339 N on a crate in a direction è = 26.1o above the horizontal as he pulls it across a level floor through a distance of s = 7.20 m. The mass of the crate is m = 53 kg and the coefficient of kinetic friction between the floor...

### math

A researchr assistant made 160mg of a radioactive, and found that there was only 20mg left after 45hours. a) What is the half-life of this substance? b) Write a function to represent the amount of substance left after x hours c) If the researcher kew he needed 100mg of the ...

### Physics

HI! :( Im sorry to bother you guys but I need help on only these three questions. I'm not trying to cheat but these three are really confusing. This is the first time I've ever asked for help on the internet haha. Please don't be upset I promise this is the only time. 13. You ...

### english

I need to write a one page report - not a complete story. It must be man vs man, as well as man vs self or man vs nature. not sure if i understand can someone explain What you are describing are different types of conflicts in literary (not psychological) situations. I hope ...

### Physics

Sorry for reposting this but I'm still confused with the last part... You have been sent in a small spacecraft to rendezvous with a space station that is in a low circular Earth orbit, say, with a radius of 6,720 km, approximately that of the orbit of the International Space ...

### physics

Apparent Weight. A physics student weighing 600 N stands on a bathroom scale in an elevator. As the elevator starts moving, the scale reads 420 N . A )Find the magnitude of the acceleration of the elevator. B ) Find the direction of the acceleration of the elevator.( up or ...

### English

Thank you for your last corrections. Can you check the grammar in the following sentences, please? 1) A: "What would you like to drink?" B: "I'll have a coke, please". A: "What about you?" (and not "And for you?")C: I'd like an orange juice. 2) The Celts were a tribal ...

### accounting srjmcgain

thank you for helping me but i cant put two choices down so can you pick which is better please that will help me alot i will appreciate it so much. thank you. 1. Think again. You have received money = a, c It is a positive thing for y ou. 2. This is a negative thing for you. ...

### Chemistry

This has to do with the reactivity series for metals (K,Na,Ca,Mg,Al,Zn,Fe,Pb,Cu,Au,Ag) Which metal is most likely to undergo the conversion M(s)->M(n+)(aq)+ne- What type of reaction is this?-oxidation ? Which metal ion is most likely to undergo the conversion M(n+)(aq)+ne...

### Physics

Visitors at a science museum are invited to sit in a chair to the right of a full-length diverging lens (f1 = -3.3 m) and observe a friend sitting in a second chair, 1.94 m to the left of the lens. The visitor then presses a button and a converging lens (f2 = 4.36 m) rises ...

### physics

please check: Two point charges, initially 1 cm apart, are moved to a distance of 3 cm apart. By what factor do the resulting electric and gravitational forces between them change? a. 9 b. 3 c. 1/3 d. 1/9 D Two positive charges, each of magnitude q, are on the y-axis at points...

### Math!Please Help.!

Hi.-It's Margie and I have a Math Lab to do but I don't get this.If you can, please help.: Use the Pythagorean Theorem to find the diagonal of the new room. length=22 width=25 area=350 Is the area supposed to be 550 instead of 350? Area of a rectangle is length times width, ...

### physics

Another question I'm having a hard time grasping; I followed a solution one of the tutors posted involving a similar question, but I have a feeling there is some mistake I am making. The question asks to find out what the distance should be from a source if you want the noise ...

### Economics Please Help!!!

Why is there a difference between interest charged and interest earned? A) Banks are non-profit institutions B) Banks are profit-making institutions C) Banks must pay more than they receive D) There is no difference between interest charged and interest earned Is the answer C...

### English

correct this sentence comparatively please He responded to the interviewer as candidly as Tom. correct this sentence comparatively please He responded to the interviewer as candidly as Tom. Comparative is "more candidly" -- now rewrite the sentence. =)

### physics

Cora is a passenger in a car traveling east along a country highway that is parallel to a railroad track and clear of any traffic. Her friend Liz is driving. They come up behind the last car of a train on the track. Initially, the train is moving a little slower than they are...

### Physics

Hello I am trying to solve this physics problem related to effusion of gases. The following data is given and I am asked to calculate the rate of effusion The data given; depth/thickness (t) Surface area (A) diffusion coefficient (D) Can someone help me out? The only law ...

### Physics

Please can you help out: 1)The Potential diff across the terminals of a battery is 8.5v when there is a current of 3amps in the cct from the -ve to the +ve terminal. When the current is 2amps in the reverse direction, the potential diff becomes 11volts. a) what is the internal...

### math

missed this in parade magazine, please answer for me man owns cows and chickens that total 30 when the son couned them his answer was 74 legs how many chicken did the farmer own x=cows y=chickens x+y=30 4x+2y =74 please finish for me Solve one equation for one variable. Take ...

### please help me!

(8q-4)(6q^2+q+1)

### Help please

is a(bc)=(ab)(ac)

### Help Please

Is a(bc)=(ab)(ac)

### Please Help

(−6)∙(a+2b−3c−4d)−(−2)∙(−4a−3b+2c+d)

### Math (Check answers, please.)

Hello. I am having some difficulty with this problem. Could you please check my answer? You start searching for a buried object by marking the center of a field as (0, 0), with coordinates giving distances in yards. Coordinates to the north or east are positive, and ...

### physics please help!!

One of the methods used to train astronauts for the effects of "zero gravity" in space is to put them in a specially equipped plane which has been stripped of seats and fitted with padded walls. The pilot then takes the plane up to an altitude of typically 8700 meters and, at ...

### holocaust

I need informatiom on when the Holocaust began and ended. http://en.wikipedia.org/wiki/Holocaust Scroll down to the Contents and read section 4. =) Please remember that posting several times with the same or very similar topic -- and for which you receive the same responses...

### ms. sue can you plz help

can you help me with this please. Taking either the constructivist theory of education or the behaviorist theory of education, write a 700-1,050 word paper in which you describe your ideals for effective classroom management. In separate paragraphs describe your approach to ...