# Posts by bill

Total # Posts: 898

**Chemisty**

the answer is approximately 1.6098 M

**11th grade**

A box of books weighing 229 N is shoved across the floor by a force of 420 N exerted downward at an angle of 35° below the horizontal.If µk between the box and the floor is 0.75, how long does it take to move the box 7 m, starting from rest? (If the box will not move...

**physics**

A box of books weighing 229 N is shoved across the floor by a force of 420 N exerted downward at an angle of 35° below the horizontal.If µk between the box and the floor is 0.57, how long does it take to move the box 9 m, starting from rest? (If the box will not move...

**MATH**

Misty uses 3/4 of a bag of noodles when she makes a cartain casserole. What is the greatest number of casseroles she can make from 6 1/4 bags of noodles?

**MATH**

Tina and her sister evenly split a $10 lottery winning. If tina promised to giver her brother 1/4 of her share what fraction of the original $10 did she give her brother?

**Math**

Tina and her sister evenly split a $10 lottery winning. If tina promised to give her brother 1/4 Of her share, what fraction of the original $10 did she give her brother?

**Math**

Laura takes a random survey of the students in her school. Of the 48 students asked, 16 plans to go to the football game. There are 231 students in her shcool. What proportion can she use to find s the total number of students expected to attend the game?

**Math**

Bob wants to buy cards with $20. Each card cost between $1.80 and $2.25. What is the maximum number of cards he can buy?

**Math**

Which statement is true about all prisms? A. Prisms have a pair of opposite faces B. The faces of a prism are congruent C. Prims have the same number of verticrs as edges D. The base of a prism is larger then the other faces.

**Math**

Meka plans to bake a large circular cookies for her brothers. She wants to decorate the outer edge of the cookie small pieces of choclate. The radius of the cookies is 7 inches.What would be the closest to the curcumference of the cookie?

**Math**

Meka plans to bake a large circular cookies for her brothers. She wants to decorate the outer edge of the cookie small pieces of choclate. The radius of the cookies is 7 inches.What would be the closest to the curcumference of the cookie?

**Math**

The width of a single cour is 3/4 of the width of the double court. Double court which is the base= 36 feet and the height= 78 feet What is the area of the singles court?

**statistics**

The average time to sew a pair of pants is 4.2 hours with a standard deviation of 30 minutes and if the distribution is normal then the probability of a worker finishing the pants in less than 3 hours is.

**math**

pi/6

**physics**

an object is released from rest on a planet that has no atmosphere.the object falls freely for 3.46 m in the first second.what is the magnitude of the acceleration due to the gravity on the planet?

**spelling**

what is the correct abc order for sister's sisters sisters'

**english**

guy

**accounting**

Jan.1 Beginning Inventory..300 units @ $3.00 Mar.5 Purchase..........… 900 units @ $4.00 Sept.3 Purchase...........… 1,000 units @ $5.00 Nov. 4 Purchase....… 500 units @ $7.00 During 2011, 1,000 units are sold at $10.00 each. Assume that the Periodic Invetory ...

**chemistry**

Not sure

**Calc**

At noon, ship A is 100 Kilometers due east of ship B, Ship A is sailing west at 12 k/h, and ship B is sailing S10degrees west at 10k/h. At what time will the ships be nearest each other and what time will the distance be? (not a right triangle)? I believe I should start with ...

**Calc**

At noon, ship A is 100 Kilometers due east of ship B, Ship A is sailing west at 12 k/h, and ship B is sailing S10degrees west at 10k/h. At what time will the ships be nearest each other and what time will the distance be? (not a right triangle)? Not a right triangle? You know...

**Calc**

Still trying to figure this out. Am i going in the right direction? c2=(12t)^2+(10t)^2-2(12t)(10t)Cos100

**Calc**

c^2=100^2-x+(-12t)^2-2(100-x)(-12t) Cos100 or maybe this?

**Calc**

Ok. So c^2=100^2+b^2-2(100)b Cos100 ?

**Calc**

At noon, ship A is 100 Kilometers due east of ship B, Ship A is sailing west at 12 k/h, and ship B is sailing S10degrees west at 10k/h. At what time will the ships be nearest each other and what time will the distance be? (not a right triangle)?

**Chemistry**

How many grams of HCl are produced according to the following equation, H2 + Cl2 = 2 HCl, when 4.0 g of hydrogen reacts completely?

**8th grade**

mr. macho ate 125 hotdogs over a five day peroid each day he ate seven more hotdogs than the previous day. how many hot dogs did he eat on the first day.

**physics**

Thank you drwls!

**physics**

How long does it take a plane, traveling at a speed of 170 m/s, to fly once around a circle whose radius is 2900 m?

**physics**

Me don't know

**Economics**

Which government bodies influence national fiscal policies that potentially affect the housing market?

**physics**

The mass ratio is 3.

**3rd grade**

Explain how 8 ten thousand can be equal to 80,000.

**3rd grade**

No???

**calculus**

-ln(6x+1) + e^24x-1

**second grade**

it is 1,235,1469,2587,265,874 times 1million

**physics**

please HELP!!! What is the magnitude of the momentum of a baseball (m = 1.450 kg) traveling at a speed of 102 mi/h? Express your answer in SI units. I am unsure where to start

**physics**

A simple pendulum is made by attaching a small cup of sand with a hole in the bottom of a 1.2 m long string. The pendulum is mounted on the back of a small motorized car. As the car drives forward, the pendulum swings from side to side and leaves a trail of sand (15 cm from ...

**physics**

A certain car is capable of accelerating at a rate of +0.60 m/s2. How long does it take for this car to go from a speed of 20 mi/h to a speed of 65 mi/h?

**physics**

HELP PLEASE!!! A satellite moves in a circular orbit around Earth at a speed of 5085 m/s. (a) Determine the satellite's altitude above the surface of Earth. (b) Determine the period of the satellite's orbit.

**Physics**

A chain composed of four identical links is suspended by a rope and does not move. What are the forces on each chain? (include where they come from)

**biology**

are the antipodals hapliod or diploid?

**Math**

value of $25000.00 compounded semi annually at 7% for 5 years

**Calc 1**

y=108x-243

**Calc 1**

108

**Calc 1**

Find the equation of the tangent to the graph y=f'(x) at x=3 where f(x)=x^4 So I did : f'(x)=4x^3 y-81=4x^3(x-3) y=4x^4-12x+81 ?? Am i even remotely correct?

**Calculus 1**

According to Ohm's law, the voltage V, current I, and resistance R in a circuit are related by the equation V=IR, where the units are volts, amperes, and ohms. Assume that voltage is constant with V=12V. Calculate: The ROC of I with respect to R for the interval from R=8 ...

**math**

(x)/(x-8)= (x-7)/(x+3) how do u solve this for x?

**Honors Chemistry**

Due to the screening effect, the 3s electrons of magnesium (Mg) feel an effective nuclear charge (Zeff) of: 1. +1 2. +2 3. −2 4. +12 5. +4

**physics**

PLEASE HELP !!!!!!Find the acceleration reached by each of the two objects shown in figure below if the coefficient of kinetic friction between the 7.00 kg object and the plane is 0.250. img411.imageshack.us/img411/5841/p449.gif I keep getting 3.9=a

**physics**

You are trying to slide a refrigerator across a horizontal floor. The mass of the refrigerator is 199 kg, and you need to exert a force of 343 N to make it just begin to move. (a) What is the coefficient of static friction between the floor and the refrigerator? F=(mu)m*g 343\...

**physics**

A certain car is capable of accelerating at a rate of +0.60 m/s2. How long does it take for this car to go from a speed of 20 mi/h to a speed of 65 mi/h?

**calculus**

Oh, right . I forgot all about the -1. Thanks.

**calculus**

The sum from 0 to infinity of (-1)^n(3/3^n) is convergent or divergent? If convergent, what is the sum? I got that it's convergent and the sum is 9/2, but that's wrong.

**algebra**

Are the following true or false? 1. The difference of two natural numbers is always a natural number. 2. The sum of two natural numbers is always a natural number. 3. The quotient of two natural numbers is always a natural number. 4. The difference of two natural numbers is ...

**calculus**

Determine whether the sum from n=1 to infinity of arctan(2n^2/(25n+1)) converges or diverges. If it converges, what is the sum?

**Chemistry**

8.4cm = m 1333.8g=kg 119cm=mm 2391mL=L 3.22Mm=km 4.68fs=ps 8.86*10^11=Gm 1.57*10^-10m=picometers 381cm=in 94mm=in 5.0L=q 132kg=lbs

**physics**

A car is traveling at 28 m/s when the driver spots a large pothole in the road a distance 37 m ahead. She immediately applies her brakes. If her acceleration is -7.8 m/s2, does she manage to stop before reaching the pothole? What is this stopping distance?

**chemistry**

Nevermind I figured it out myself.

**chemistry**

Out of these choices what would you say? 1. The same number of electrons would be emitted, but they would have a lower velocity 2. The same number of electrons would be emitted, but they would have a higher velocity 3. No electrons would be emitted from the surface. 4. More ...

**chemistry**

We conduct an experiment by shining 500 nm light on potassium metal. This causes electrons to be emitted from the surface via the photoelectric effect. Now we change our source light to 450 nm at the same intensity level. Which of the following is the result from the 450 nm ...

**Biology**

What is the name given to the types of organisms that exclusively use aerobic cellular respiration to break down glucuse to produce ATP for energy? Provide three specific examples

**Math**

need help in identifying the y intercept for 2y+5=-2. my ordered pairs are (0,4) and (6,-2). I am visually impaired when it come to trying to see the tics. Thanks Bill

**english**

1. c 2.d 3.c 4.c 5.c 6.b 7.d 8.c 9.a 10.b

**MATH**

HOW LONG WILL IT TAKE A CAR BEING DRIVEN AT A SPEED OF 15 MILES PER HOUR TO TRAVEL 26,400 FEET? AN OBJECT MOVING AT A RATE 0F 15 MILES PER HOUR TRAVELS 22 FEET IN ONE SECOND.

**MATH**

How much larger than 327 is 609?

**MATH**

THE ANSWER IS 8,000,000,002

**MATH**

WRITE IN DIGITS EIGHT BILLION TWO.ANSWER SHOULD BE 8,200,000,000

**math**

When a ball is thrown up into the air, it makes the shape of a parabola. The equation S= -16t^2 + v*t + k gives the height of the ball at any time, t in seconds, where “v” is the init

**Physics**

Charge A and charge B are 2.00 m apart, and charge A is +3.90 C and charge B is +4.00 C. Charge C is located between them at a certain point and the force on charge C is zero. How far from charge A is charge C?

**Ur mom**

It was sweaty down there

**Business**

Let us adopt the following symbols for the variables: · Sales: S ($) · Salesperson's level of education: E (Years of education). · Gender (M): We use a single dummy variable for two categories. If the observation is male, then the variable M=1, if ...

**physics**

Two masses are hanging over a frictionless, massless pulley as shown blocks_pulley_aMass m1 is 5.0 kg and mass m2 is 7.0 kg

**History**

but it wasn't a test.. its a chapter review i was trying to make it sound urgent so id get help

**History**

Why did president hoover's emphasis on voluntarism fail to resolve the problems of the great depression of the united states?

**math**

1. In a survey of a TriDelta chapter with 46 members, 13 were taking mathematics, 33 were taking English, and 6 were taking both. How many were not taking either of these subjects?

**Algebra**

f(x) = (x - 3)2, with domain [3, ∞) What is the range of function f?

**Algebra**

If f(x) = - 2x2 + 2x - 3, what is f(5)?

**algebra**

The radius of a large pizza is two times plus 3 inches larger than a small pizza. The area of the small pizza is 33 square inches less than the large pizza. What is the radius of the larger pizza?

**math**

The heights in inches of 18 randomly selected adult males in LA are listed as: 70, 69, 72, 57, 70, 66, 69, 73, 80, 68, 71, 68, 72, 67, 58, 74, 81, 72. Display the data in a stem-and-leaf plot. 1. Find the mean. 2. Find the median. 3. Find the mode. 4. Find the range. 5. Find ...

**College Chemistry**

Is 50.0mL of 1.0 MHF and 50.0 mL of 1.0M NaOH a buffer solution with a pH of 3?

**Chemistry**

What is the pH when 0.40 g of NaOH is added to 50,0 mL of 0.10 M HCOOH? No volume change. (Ka for HCOOH - 1.8 x 10^-4.)

**chemistry**

Write a net equation for the reaction between aqueous solutions of NH4Cl and Na2SO3.

**11th grade**

flvs??

**Accounting**

Hanson Corp uses a process costing system. Materials are added at the start of the process. Beginning inventory for January consisted of 1,900 units (40% complete for conversion) with a cost of $15,000. 10,900 units were started and completed during January. On January 31, the...

**chemistry**

323K

**Chemistry**

y=mx+b Is slope

**algebra 1**

(-1,1),y=x-4

**chemistry**

What volume does 7.50 ´ 1020 molecules of O2 occupy at STP?

**chemistry**

What is the volume of 62.3 g of nitrogen gas at STP

**Chemistry**

gas chromatography i think but not sure why

**Chemistry(defintions)**

I need help on finding the definitions to these: Pressure being constant, the amount of heat in a chemical equation ___________. Randomness of particle measurement is called __________. Calories required to convert 1gm of liquid to vapor without a change in temperature ...

**trig**

Is the somewhere where I could learn how to graph polar coordinates such as (1,pi/3)?

**Algebra 3**

sin(180 + 0)

**Math**

Given:a and b are first-quadrant angles, sin a = 5/13 , and cos b = 3/5 , evaluate sin(a - b).

**trig**

you use a polar calculator converter

**4gr math**

18

**social studies**

in what way could putting a tariff on foriegn shoe imports result in a disadvantage to the untited states economy or to the United states consumers.

**Calculus**

Determine the convergence or divergence: An=(-1)^n(n/(n+1))

**trigonometry**

2. two look out situations, which are 25 miles apart along the coast on a north-south shoreline, spot an approaching yacht. One lookout station measures the direction to the yacht at N33 degrees E, and the other station measures the direction of the yacht at S62 degrees E. ...