128,894 results, page 65

### Algebra 2

Completing the square method allows you to solve any quadratic equation. For each of the following determine what number completes the square. I cannot find my notes on completing the square, can someone please help with these two problems? 1. x^2+8x 2. y^2+10y i don't know ha...

### english

We have to do an oral commentary and analyze an poem that can be related to structuralism. We read a book called the educated imagination, and that book explains the idea of structuralism. Can somebody please suggest an poem that would be good for this assignment? and also, ...

### R.E

Please tell me who are the 5 Prophets? I have a bible (christian i think..) crossword and it has a few questions on it at the bottom and one of them is the 5 Prophets. I can give a list of names, but please can you tell me out of the names who the 5 prophets are? Thanks Amos, ...

### ENGLISH!!

What should i write about for the topic: responsibility for watching over your little brother....also explain the various ways you kept him safe...etc. and how you felt responsible for that person. Please give me lots of ideas about what to write for that topic (i have to ...

According to a study conducted by a statistical organization, the proportion of americans who are satisfied with the way things are going in their lives is 0.82. Suppose that a random sample of 105 Americans is obtained. (Please answer the below and round to four decimals ...

### geometry

graph the following 2 graphs - y=2x+3 and y=2x-4. a)state the intersections on the y axis and the x axis. b)what is the vertical and horizontal difference between the two graphs? PLEASE help i don't understand? I know how to graph the eqautions but not too sure about the ...

### Social Studies

Who are some famous people that were born in France? Please give me someone who has lot's of info not just 2 or 3 notes. I need someone famous who has lot's and lot's of notes. I tried typing it on google and I found nothing! Please help me! Thanks...

a model rocket rises with constant accerleration to a height of 3.2 m, at which point its speed is 26.0 m/s. (a) how much time does it take for the rocket to reach this height? (b) what was the magnitude of the rocket's acceration? (c) find the height and speed of the rocket 0...

In an experiment, when 25 mL of 5.5 x 10^-3 M NaOH is mixed with 30 mL of 7.5 x 10^-3 M Fe(Br)2, a hydroxide compound is formed (Ksp = 1.8 x 10^15). Which of the following describes the resulting solution? a. The product is unsaturated b. The mixture product is saturated c. ...

### physics

Can you please help me find the theory of Robert Hooke on Wave Explanation of Colors. Please... My report about this is due on Monday. Thank you for helping. God bless. According to (Broken Link Removed) , "Robert Hooke (1635-1703) who started as an assistant to Robert Boyle, ...

The engine of a train has a mass of 5x10^4 kg. it can accelerate six railway cars having a total mass of 3x10^5 kg by 0.4 m/s^2 (the 6 railway cars have a combined mass of 3x10^5). what acceleration can the same engine using the same force give to four railway cars having a ...

### Physics - Quidditch

For the second part: The draw the plane vector which is the same as the desired results. At the end of the plane vector, draw the wind vector. That is where the plane will end up. So, for a 1/2 hour flight: (80 km/h) * (hour/2) at 30 degrees E of S. or 40km at 30 degrees E of ...

### Physics

An athlete finished the 100 meter race in 10sec. What was his average speed? acceleration? Acceleration time? Acceleration distance Help with few questions already got the already got the first two V=d/t =100m/10s =10m/s and Acceleration= Vf-Vi/t =10m/s-0/10s =10m/s^2 how to ...

### Calculus!!!

I need your help... I've posted this question a while ago but no one has answered it yet. Please please help me. Which of the following series can be used to compute ln(.8)? a) ln(x-1) expanded about x=0 b) lnx about x=0 c) ln x in powers of (x-1) d) ln(x-1) in powers of (x-1...

### Physics

Ok, my Physics professor gave us this to do uncertainty propagation with these equations. Can some please show me some examples on each of these so I know I'm doing them right? Uncertainty Propagation Since raw data includes uncertainty, all calculations include uncertainty. ...

### physics

Sam is sitting in her fishing boat watching a trout swim below the surface. She guesses the apparent depth of the trout at 2.0m. She estimates that her eyes are about 1.0 m above the water's surface, and that the angle at which she's observing the trout is 45 degrees. b) ...

### Physics

A vector drawn 55 mm long represents a velocity of 25 m/s. How long should you draw a vector to represent a velocity of 17 m/s? please help me!! 55mm is to 25m/s as X is to 17m/s...maybe? thanks..i tried that and the answer was wrong...these questions are just really tricky. ...

### Physics - please check over

A charged particle moves at a constant velocity in a straight line through a region in space... a) is the electric field zero in the region? Explain b) is the magnetic field zero i the region? Explain I think a is yes because a charged particle will always create an electric ...

### physics

Curve A is banked at 11.2 °, and curve B is banked at an angle of 15.2 °. A car can travel around curve A without relying on friction at a speed of 14.5 m/s. At what speed can this car travel around curve B without relying on friction? Do I need to find radius in order to ...

### SAT MATH

I don't remember what problem I struggled to understand... But it was something like this... There are 3000 numbers so how many of them are odd.. SometI don't remember what problem I struggled to understand... But it was something like this... There are 3000 numbers so how ...

### Chemistry

Hi can someone please help with this question, or atlest direct me in the right direction. Please and thank you. The initial rate of reaction H2O2(aq) --> H2O (l) + 1/2 O2(g) is found to be1.7*10^-3 M/s . Assume that this rate holds for 2 minutes. Start with 165ml of 1.55M ...

### please check my work language

-write the plural for each noun potato-potatoes shoe-shoes auto-autos speech-speeches -describe the kinds of information about words that can found in a dictionary *prononciation *parts of speech *definition and the word *how many syllabuls a word has is there anything else ...

### Algebra

Fiona invested $1000 at 8% compounded continuously. At the same time Maria invested$1100 at 8% compounded daily. How long will it take for their investments to be equal in value? Assume there are 365 days in every year. Please help I have tried everything and cannot solve ...

### Chemistry

Balance the equation: NO2- (aq) + Al (s) --> NH3 (g) + AlO2- (aq) (basic solution) ** please note the "2-" on the NO2- and AlO2- are not subscripts, they are the charges. I missed a few classes in Chemistry and find myself lost. I have tried to learn these equations with ...

2. Simplify the polynomial. –3f^2 + 4f – 3 + 8f^2 + 7f + 1 5f2 – 11f + 2 11f2 + 11f + 2 5f2 + 11f – 2 –5f2 + 11f – 2 No idea how to do this please explain!!!!

A 1.3 kg steel ball and 8 m cord of negligi-ble mass make up a simple pendulum that can pivot without friction about the point O. This pendulum is released from rest in a horizontal position and when the ball is at its lowest point it strikes a 1.3 kg block sitting at rest on ...

For an experiment on specific heat capacities of metal in physics, I am trying to calculate my percent error but am having some trouble. After collecting my experimental data for c (cal/g) for the object that was used which was aluminum my results are: trial 1 = .19 trial 2...

### Physics

Two cars lost in a blinding rainstorm are traveling across a large field, each thinking they are on the road. They collide. If the distance between them is 174 meters and the red car is traveling at 6 mph at a 45 degree angle toward the impact point, and the blue car is ...

### Physics

A 1.8 tonne railway truck moving at a speed of 3m/s up a steady incline comes to a stop after 45m. If the sum of the friction opposing the truck amounts to 80N What is the angle of elevation of the slope? I found Fg using m*g THen I tried using v^2=u^2 + 2as to find the ...

### PHYSICS

The length of a bicycle pedal arm is 0.152 m, and a downward force of 146 N is applied to the pedal by the rider's foot. What is the magnitude of the torque about the pedal arm's pivot point when the arm makes the following angles with the vertical? (a) 30° (b) 90° (c) 180...

### Physics

Which of the following involves a non-zero net force? I. A hockey-puck sliding at a constant speed on ice. II. The earth revolving around the sun at a constant speed. III. An object falling near the surface of the earth. A) I only B) III only C) Both I and II D) Both II and ...

The engine of a train has a mass of 5x10^4 kg. it can accelerate six railway cars having a total mass of 3x10^5 kg by 0.4 m/s^2 (the 6 railway cars have a combined mass of 3x10^5). what acceleration can the same engine using the same force give to four railway cars having a ...

The engine of a train has a mass of 5x10^4 kg. it can accelerate six railway cars having a total mass of 3x10^5 kg by 0.4 m/s^2 (the 6 railway cars have a combined mass of 3x10^5). what acceleration can the same engine using the same force give to four railway cars having a ...

Using a force table the direction and magnitude had to be found for the following measurements: F1 = 200 grams at 30 degrees; F2 = 200 grams at 120 degrees The magnitude and direction found was 280 grams at 257 degrees. Using the magnitude and direction of F1 and F2 I need to ...

An object is moving along a straight line and the uncertainty in its position is 1.1 m. (a) Find the minimum uncertainty in the momentum of the object. (b) Find the minimum uncertainty in the object's velocity, assuming that the object is a golf ball (mass = 0.045 kg). (c) ...

### Physics

Please help me!! I need this as soon as possible. 2.A billiard ball at rest is struck by the cue ball of the same mass whose speed is 5 m/s .After an elastic collision the cue ball goes off at 50 degree with respect to its original direction of motion and the struck ball goes ...

### Physics

I'm comparing the "g-force" of a rocket and a race car. My answer for the race car corresponds to the answer in the book but my answer for the rocket is off by 1. The book says I need to add 1 G because the rocket is going upward. So, instead of my answer of .87 G, the correct...

### physics

A 14.5 kg ring has 3 ropes attached to it. One rope is being pulled due North with a force of 340 N. Another rope is being pulled 68 degrees South of West with a force of 450 N. How hard and in what direction must the third rope be pulled in order to cause the ring to move 15 ...

### Physics

A single-turn square loop of side L is centered on the axis of a long solenoid. In addition, the plane of the square loop is perpendicular to the axis of the solenoid. The solenoid has 1490 turns per meter and a diameter of 6.00 cm, and carries a current of 2.46 A. Find the ...

### Financing

Please..I need help asap If a firm pays its bill with a 30 day delay, what fraction of its purchases will be in paid in the current quarter? Please show me how you get this answer Since a quarter is three months long, then 2/3 of the firm's purchases are paid in the quarter in...

### drivers ed

can someone please tell me a good website or give me a good link where i can take a practice driving test for a permit (learners licence). pleeease, i really need to practice, and i need a test that is updated. close to the real test. please help me

### Math

Hi, so I am supposed to calculate the volum of my prism as if it were a prism. I know I'm supposed to to do Volum=1/3* area of the base* height. But I get confused can you please help me. These are the measurements of my prism. Length=5cm Width=17cm Height=22cm. Please help me...

Choose either homogeneous or heterogeneous. Tea: homogenous Concrete: heterogeneous Soda: homogeneous Soapy Water: homogeneous Salt Water: homogeneous Granite: heterogeneous Please help, and thanks lots :D

### Chemistry :(

hello, i would be glad if someone answer to my question fast please as i am having a class test tomorrow. So here's the question: Q:An Alkaline with 16 carbons has a molecular formula of: (a)C16 H16 (b)C16 H34 (c)C16 H8 (d)C16 H32 (e)C16 H48 please tell me which option out of ...

### English

Please please please check my answers and explain to me why they are right or wrong!!! 24.) Choose the correct voice of the underlined verb. (1 point) The pitcher THREW the ball to the catcher. a.) active** b.) passive 25.) Choose the correct voice of the underlined verb. (1 ...

### Physics

I have tried to solve this problem in multiple ways, but i keep getting it wrong please help A 48.0 {\rm kg} ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 1.50 turns each second. The distance from one hand to the other ...