Wednesday

July 23, 2014

July 23, 2014

Total # Posts: 122

**Physics**

Two blocks of masses m1 = 4.4 kg and m2 = 4.8 kg are connected by a string as shown in the figure above. Block 1 moves at a constant velocity down the incline 30 degrees) block two is not at incline it is straight. they are attached with a string. a) Find the coefficient of ki...

**Physics**

Two blocks of masses m1 = 4.4 kg and m2 = 4.8 kg are connected by a string as shown in the figure above. Block 1 moves at a constant velocity down the incline 30 degrees) block two is not at incline it is straight. they are attached with a string. a) Find the coefficient of ki...

**econ **

This chart shows the components of nominal GDP for the years 2000 and 2001. All figures are in billions of current dollars. Components 2000 2001 Consumption $6,684 $6,987 Investment $1,755 $1,560 GovernmentSpending $1,751 $1,858 Exports $1,101 $1,034 Imports $1,467 $1,383 Nom...

**physics**

If the specific gravity of mercury is 13.6 and the atmospheric pressure is 70cm of mercury, what is the total pressure of gas supply in cm of water

**accounting**

On December 31, 2013, a company issues bonds with a par value of $600,000. The bonds mature in 10 years, and pay 6% annual interest, payable each June 30 and December 31. The bonds sold at $592,000. The company uses the straight-line method of amortizing bond discounts. The co...

**accounting**

On December 31, 2013, a company issues bonds with a par value of $600,000. The bonds mature in 10 years, and pay 6% annual interest, payable each June 30 and December 31. The bonds sold at $592,000. The company uses the straight-line method of amortizing bond discounts. The co...

**Chem**

I got part a but part b I'm having trouble with I keep getting 56.2mL. I'm not sure what the next step is really to find part b. A. How would you prepare 250 mL of a 0.150 M solution of CoCl2 from solid CoCl2 and distilled water? Dissolve 4.87 grams solid CoCl2 into en...

**Finance**

Assume a bank has $5 million in deposits and $1 million in vault cash. If the bank holds $1 million in excess reserves and the required reserves ratio is 8 percent, what level of deposits are being held?

**differentiation **

Derive the central difference approximation for f′′(x) accurate to O(h4) by applying Richardson extrapolation to the central difference approx- imation of O(h2).

**Thanksgiving writing**

your mom faty

**physics (speed of plane by radar)**

The radar stations A and B, separated by the distance a = 500 m, track the plane C by recording the angles α and β at 1-second intervals, If three successive readings are shown in the table,calculate the speed v of the plane and the climb angle y at t = 10 seconds as...

**Dynamics**

Okay so I have a 1/2 in thick ellipsoidal steel plate where (p=493 lb/ft^3) and it has a major axis diameter of 4ft and a minor of 2ft. the plate rolls w/out slipping (friction=0.15) and in a vertical position has an angular velocity of of w=4 rad/s(i.e. the 4 ft diameter is a...

**physics**

A girl delivering newspapers covers her route by traveling 10.00 blocks west, 4.00 blocks north, and then 5.00 blocks east.

**physics**

A commuter airplane starts from an airport and takes the route shown in the figure below. The plane first flies to city A located 175 km away in a direction 30.0° north of east. Next, it flies for 150 km 20.0° west of north to city B. Finally, the plane flies 190 km du...

**physics**

A golfer takes two putts to get his ball into the hole once he is on the green. The first putt displaces the ball 8.10 m east, the second 6.00 m south. What displacement would have been needed to get the ball into the hole on the first putt?

**physics**

A Chinook (King) salmon (Genus Oncorynchus) can jump out of water with a speed of 5.95 m/s. (See Problem 4.9, page 111 for an investigation of how the fish can leave the water at a higher speed that it can swim underwater.) If the salmon is in a stream with water speed equal t...

**physics**

A Chinook (King) salmon (Genus Oncorynchus) can jump out of water with a speed of 5.95 m/s. (See Problem 4.9, page 111 for an investigation of how the fish can leave the water at a higher speed that it can swim underwater.) If the salmon is in a stream with water speed equal t...

**math**

4^(x 1) - 6^x - 2.9^(x 1) = 0

**Physics**

A lever has a 9-N load 1.5m from the fulcrum. Where should a 0.5N effort force be applied to balance the load?

**Physics**

A wheel with a radius of 20 cm is attached to an axle with a radius of 1cm. An effort force of 100 N on the wheel counters a resistance force of what on the axle?

**Physics**

How much effort force is required to life an 11000-N beam using a pulley system with a mechanical advantage of 20?

**Physics**

A car parked on a hill. The driver starts the car, accelerates until the car is driving at constant speed, drives at constant speed, then brakes to put the brake pad in contact with the spinning wheels. How is static friction, sliding friction, rolling friction, and air resist...

**Science**

A lever has a 9-N load 1.5m from the fulcrum. Where should a 0.5N effort force be applied to balance the load?

**Science**

How much effort force is required to life an 11000-N beam using a pulley system with a mechanical advantage of 20?

**science**

A wheel with a radius of 20 cm is attached to an axle with a radius of 1cm. An effort force of 100 N on the wheel counters a resistance force of what on the axle?

**Math**

A spinner is divdided into 10 equal sectors and numbered 1 through 10. Find the probability as a fraction, a decimal and a percent for P(composite numbers.

**Science**

A ball has a potential energy of 180 J and a kinetic energy of 0 J. After falling 2m, it has a potential energy of 135J. What is its kinetic energy at this point? PLEASE ANSWER THIS I'M STUCK!

**Science**

WHen a wrecking ball hits a wall, it is usually moving at about 10 km/h, which is not very fast. How can this ball knock down a solid wall?

**Science**

A ball has a potential energy of 180 J and a kinetic energy of 0 J. After falling 2m, it has a potential energy of 135J. What is its kinetic energy at this point?

**Science**

An 80 kg person decides to jump off the back end of a 30 kg canoe. His friend measures the speed of the canoe after he jumps to be 0.8 m/s. The canoe was initially at rest. What rule would I use to find the speed of the person who jumped?

**Science**

Suppose you and your bicycle have a total mass of 70 kg. YOu are moving at 10m/s. How much kinetic energy do you and the bicycle have?

**math**

mario wants to put a rectanguar frame on a picture of a snowboarder.he has 18cm of string to make a the frame. Q-does he have enough strings and what could be the dimensions.

**math**

$35 soccer cleats marked up 95%

**math**

1.35/1.35=x, 59.4/1.35=44

**math**

yes its marked up

**math**

can u help me with a problem like this find the original price: tickets marke35% to $59.40 and find the percent of the discount or markup: $52 sweater on sale for $31.20 please help

**math**

well i think you multiply 4 by 125 but i dont know and its not one of my options i have

**math**

125 pounds decreased by 4%

**science**

A push is an example of what?

**maths **

find the general solution of the following first order differential equation. dx/dt = t*x + 6*t(exp)-t^2 pls show working

**maths**

please help find the general solution of the following first order differential equation. dx/dt = tx + 6t(exp)-t^2 pls show working

**Math**

A restaurant manager lost $415 in business during the month of January. Business picked up in February, and he ended that month with a profit of $1580. What if the restaurant lost $245 in business during the month of March. What was the manager's profit after January, Febr...

**Chemistry**

How to seperate acetic acid from aqueos solution.

**Chemistry**

How to seperate acetic acid from aqueos solution.

**english 3**

The beauty and splendor of Gatsby's parties masked the innate corruption within the heart of the Roaring Twenties. Jazz-Age society was a bankrupt world, devoid of morality, and plagued by a crisis of character."

**Algebra**

In 1993, the life expectancy of males in a certain country was 71.5 years. In 1998, it was 73.6 years. Let E represent the life expectancy in year t and let t represent the number.

**math**

If an electrician works for $750.00 per hour. What would be his salary for 2 days?

**acct**

Business is going well for Email Designers. The board of directors of this family-owned company believes that Email Designers could earn an additional $1,000,000 income before interest and taxes by expanding into new markets. However, the $4,000,000 the business needs for grow...

**Science**

Would you expect orange juice to be more dense than water? Explain.

**electrics**

mechanical engineering

**3rd grader math homework**

write to explain. bethany has 43 apples. write a subtraction story about the apples that would requiem for a dream

**social studies**

can someone help me start my persuasive essay on vote for amendment 2 2010?

**Math **

the answer is 0!

**algebra**

(5c²+5cd)+(4c²d-2cd-6)+(-cd+8)

**Computer Programming**

Hoe do I write a program to Create a C++ console application that uses cout to display a box of asterisks?

**math**

Using only these numbers once for each answer 8,1,4,3,7 the product of two 2 digit numbers plus a number is 3,355. What are the numbers?

**4th grade**

Using only 8,1,4,7,3 only appearing once in an answer. The product of two 2 digit numbers plus a number is 3,355. What are the. Numbers?

**math**

4/x - 4/y divided by y^2 - x^2 / 4 4/x - 4/y = (4y -4x )/xy taking the LCD y^2 -x^2 = (y +x )(y-x) using the differences of square formula it would be 4y- 4x / xy divided by (y-x)(y+x) / 4 Do the reciprocal and multiply with the fractions 4 (y-x ) .xy * 4 / (y-x)(y+x) Answer i...

**math**

1000000000000000000000000000000000000000+1234567891011=

**Math**

Write the negation of the following: A snowy day is cold.

**Math**

Give a verbal, visual, numerical, and graphic representation for the idea one and one-sixth.

**algebra II**

Two runners at opposite ends of a 5 mile bridge begin jogging towards each other. Runner A is running at 5 mph, runner B is running at 4 mph. A mosquito lands on one runner as he starts on the bridge than proceeds to fly back and forth between the runners at 8 mph. How far has...

**Chemistry**

2CH3OH(l)+3O2(g)-->2CO2(g)+4H20 +1350 kj 1. What mass of water could be heated from 20.0 C to 35 C,by burning 48g of methanol? This is what I did, no answer was given so I want to double check. so q=mcT change in H=n(molar enthalpy) c= 4.184 kj/(kg C) So what I did was divi...

**chemistry**

thanks

**chemistry**

1. Need help Assigning oxidation numbers. Is it true that wehn looking at atoms in compounds from group 1 or 2 they are given the oxidization number which is the same as there charge example NaCl Na has an oxidization number of 1? But is this also true for atoms in compounds w...

**math**

36/24=24/x cross mulitply solve for x i get 16

**science**

since when is water blue

** math**

1.3x=1430 x=1430/1.3=1100 so the attendance from last year since it fell by 35% last year only 65% is left so 0.65(1100)= 715 so this years attendance was 715 students

**math**

M= (y2-y1)/(x2-x1) so (-3-5)/(10-9)=-7

**science**

when crystals collide with dissolved ions the substance precipitates out of solution and when crystals collide with water they for dissolved solute... does this have anything to do with equillibrium and what does precipitate out of solution imply?

**science**

solubility equillibrium is dynamic equillibrium between undissolved excess solute and solvent or aqueous solution and crystal in a saturated solution. so rate of dissolving = rate of crystalization if any more solute is added it will disrupt equillibrium and a precipitate will...

**religion**

Thanks for the response it is actually 9:23p.m. here and I have all day tomorrow if I don't finish it tonight

**religion**

Hello I need some help I have a paper due and I need to ask a pastor a few questions about religion this is due friday and i'm trying to get it done tonight is there is anyone who can help please do thank you so much.

**math**

The perimeter of a rectangle is 128m. The length is 4m more than twice the width. Find the dimensions.

**math**

Solve by substitution method 8x+9=-2 -9x+y=69 what is the solution of the system?

**math**

Solve by substitution method 9x+6y=21-9x+y=35 What is the solution of the method?

**math**

Again thank you for the help and I now understand how to do these problems you were a great help

**math**

Solve by substitution method 7m+n=27 m-8n=69 What is the solution of the system?

**math**

Review example 2 How does the author determine what the? Example 2. Translate. The first row of the table and the fourth sentence of the problem tell us that a total of 63 pupae was received. Thus we have one equation: p+q=63 Since each pupa of morpho granadensis costs $4.15 a...

**math**

Thank you for the help when i post questions on jiskha I do not use the actual numbers involved in my problem and when I do not show any work it is because i do not have a clue how to do the problem but you helped me out a lot and I know understand how to do them. Thank you so...

**math**

Solve the system by graphing. Then classify the system.? 6x-y=50 6x+7y=-14 What is the solution of the system? (type an ordered pair. Type N if there is no solution. Type R if the solution is all real numbers)

**math**

Solve the system of equations by graphing. Then Classify the system? 4u+v=1 4u=v+7 What is the solution of the system? (Type an ordered pair. Type N if there is no solution. Type R if the solution is all real numbers.)

**math**

Solve the system of equations by graphing. Then classify the system? y= -x -11 4x -3y=-2 What is the solution of the system? (Type an ordered pair. Type N if there is no solution. Type R if the solution is all real numbers.)

**math**

Write an equation of the line containing he given point and parallel to the given line? Express your answer in the form y=mx+b (6,8);x+7y=5

**math**

The function p(d)=1+d/33, gives the pressure, in atmospheres (atm), at a depth d in the sea? (d in in feet). Note that p(0)=1 atm, p(33)=2, and so on. Find the pressure at 40 feet (Type answer as a integer or a simplified fraction.)

**math**

solve for x x+8=-1 solving with addition and subtraction(type in)

**Math**

LCM of (x-y) and 2(y-x)

**7th grade sci.**

yes that is very true John thank you for the help

**French**

I am almost done with my power point on La Route du Rhum. I just need to figure out what the first place of La Route du Rhum gets and why so many people do the race. does anybody know??? thanks

**Science**

I am trying to find the watts, volts, and amps for eletrical appliances in the famiyroom/livingroom. Do you know of a website that has those listings because I tried to look at home on the appliances but can't find all the info. thanks:)

**French**

Bad thing happened, you may remember my other post about what does La Route du Rhum mean but anyway... I was at the library and got all this information but my time ran out and the computer logged off so I wasn't able to same it. I know wherei got most of the info. but I n...

**French**

Thanks:)

**French**

How did the sailing compotition La Route du Rhum get its name? Thanks

**Social Studies**

Thanks bobpursley and Ms. Sue:)

**Social Studies**

I have researched this a little but am still not sure what the answer is... Why was Sir Thomas More beheaded? With waht did he disagree? Thanks:)

**Science 8**

IN science we are talking about chemical prefixes and compound names. For homework there are some questions where I have to "Name the Ionic Compounds" He talked about it but I am still confused, here is one of the questions. ht tp*:/ / img101.imageshack.us/my. php?im...

**Studing for French Final**

Thanks!!! (goes to try these new helpful tips)

**Studing for French Final**

I think I get the fem. and masc. stuff but for the always saying french. Im a little confused on what you mean by that. cause inorder to know that it means "What time is it?" would I have to say or think that in English?

**Studing for French Final**

I have been studing for the past four days except I think I need some better ways to studying for my french final. I am in French 1 and we are doing auditory exams tomorrow and then oral on tues. and the written exam on Wednesday. I have tried not cards but I can't remembe...

**7th grade**

distance= rate(time) (d=rt)