Friday

April 18, 2014

April 18, 2014

Total # Posts: 1,018

**Physics**

An outfielder throws a 0.145 kg baseball to the shortstop with a speed of 30 m/s at an angle of 20 degrees above the horizontal. How far does the ball travel? (Assume the shortstop catches it at about the same height that the outfielder throws it.)

**Phamacy math**

One teaspoonful diluted to a quart results in a 1/5000 solution. What is the amount of potassium permanganate in grams required to fill this prescription?

**Finance**

1.Tank Industries Washers expects to pay the following dividends over the next 4 years: $2.50, $3.20, $4.75 and $5.20 respectively (starting at time 1). a.After year 4, the firm expects a constant growth rate of 3%. If investors require 11%, what is the current share price? b....

**chem**

Aqueous sodium chloride and aqueous sulfurous acid are formed by the reaction of aqueous sodium sulfite and aqueous hydrochloric acid . write the balanced equation?

**Math**

Yes I was thinking the same thing. Wasn't too sure. Thanks.

**Math**

Which is greater, the greatest whole number with 5 digits or the least whole number with 6 digits?

**Chemistry - Please help!**

Hey i m not getting how you did the last part how did you solve for this equation 2.8*10^(-18) = (3x)^3 * (x+0.24) what was your answer

**5th grade religion**

Do members of. JVC work?

**math**

the highway doesnt need fence its already fenced can someone pls help?

**math**

A rancher with 7000 yds of fencing wants to enclose a rectangular field that borders a straight highway and then wants to devide it into two plots with a fence parellel to the highway. If no fence is needed along the highway, what is the largest area that the farmer can enclose?

**chemistry**

A 28.6 g of iron ore is treated as follows. The iron in the sample is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 10.1 grams. What was the percent iron in the sample of ore?

**chemistry**

A 33.8 g sample of iron ore is treated as follows. The iron in the sample is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 20.7 g. What was the mass of iron in the sample of ore?

**chemistry**

An ore contains Fe3O4 and no other iron. The iron in a 38.8-gram sample of the ore is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 25 g. What was the mass of Fe3O4 in the sample of ore?

**chemistry**

An ore contains Fe3O4 and no other iron. The iron in a 27.07 gram sample of the ore is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 21.9 grams. What was the percent Fe3O4 in the sample of ore?

**chemistry**

The reaction of 9.3 grams of ﬂuorine with excess chlorine produced 4.1 grams of ClF3. What percent yield of ClF3 was obtained?

**chemistry**

Two liquids of different densities (ρ1 = 1500 kg/m3, ρ2 = 500 kg/m3) are poured together into a 100 L tank, filling it. If the resulting density of the mixture is 800 kg/m3, find the respective masses of the liquids used.

**engineering**

A steel cylinder has a volume of 0.26 L and holds 4 kg of water at 25˚C and 200 kPa. (a) Find the total mass and total volume of the system (cylinder + water). (b) Give the values for two EXTENSIVE properties and two INTENSIVE properties of the water.

**biology**

She is none of those names she i saying the truth it is cheating im only on here to check my answers so she dont deserve to be called that so you should back off bob

**physics**

A baseball is thrown horizontally off a cliff with a speed of 11 ms^-1. What is the vertical distance, to the nearest tenth of a meter, that the ball has fallen after 4.8 seconds?

**english**

which of the following contributes most to the mystery of "An occurrence at owl creek bridge? A) the breaking from the confeeracy B) for spying on Union activities C) for planning against the enemy D) for refusing to fee union soldiers I think the answer is c but not sure

**English 11**

I agree with jenne it is c

**statistics**

oh nevermind, i get what you are saying :) would you recommend that i do two different groups of mean and variance, one group is for having malaria, the other for not?

**statistics**

would i therefore need to be doing sigma = square root of [np (1-p)]?

**statistics**

Q) 75% of the population in Guinea, Africa is infected with malaria. Suppose a physician sees 6 patients in a given hour. Assuming these conditions are met, find the mean and standard deviation of the distribution. Help please!

**physics**

In a hydraulic piston, the small piston has a diameter of 2cm and the large piston has a diameter of 6m. How much more force can the larger piston exert compared with the force applied to the smaller piston?

**Math **

Your municipality withdraws 10,000 gallons per day from an aquifer that originally held 1,000,000 gallons. The recharge rate to the aquifer is 2,000 gallons per day. Determine how long it will take before the aquifer is depleted

**Math (precalculus)**

A rectangle has one corner in quadrant I on the graph of another at the origin, a third on the positive y-axis, and the fourth on the positive x-axis. Find the maximum area of the rectangle.

**programming Please respond**

you are rude to say that I have to change my career to adminstarotor. That is not very nice.

**programming Please respond**

input a list of positive numbers terminated by 0 into a array. find the mean of the numbers in the array and output the result. use a subprogram to input numbers a function to find the mean and a subprogram to output the result.

**programming**

input a list of positive numbers terminated by 0 into a array. find the mean of the numbers in the array and output the result. use a subprogram to input numbers a function to find the mean and a subprogram to output the result.

**math**

The following sequence of figures begins repeating in the fifth figure. The fifth figure has 2 squares, 2 triangles, and 1 rhombus. How many triangles will there be in the 176th figure?

**physics**

a motorisrt accelerates their car to 36m/s before realising they are over the speed limit and decelerates to 32m/s. calculate the distance traveled

**business**

1. An auto manufacturer negotiates a deal to have its cars appear in a Hollywood film. This is an example of A. publicity. C. media placement. B. product placement. D. image exposure. 2. To affect market _______, a company’s framework could be geographic, demographic, psy...

**physics**

Two crates A and B connected together by a light rope are pulled along a factory floor by an applied force, F. Crate A has a mass of 50 kg and the coefficient of friction (μ) between crate A and the floor is 0,25. Crate B has a mass of 35 kg and μ between B and the ...

**Math**

A Company makes and sells sailboats. The company's cost function in thousands of dollars is C(x)=2x+20, and the revenue function in thousands of dollars is R(x) =4x, where x is the number of sailboats. Evaluate and interpret C(5).

**Physics**

How do I make calculations for a toy hovercraft?

**Physics**

How do I make calculations for a toy hovercraft?

**English**

To find the main idea of an informational text, look for

**math 6th grade**

write the rule anf find the missing input. input out put 0 5 3 14 x 32

**math**

find the terms and leave the coefficients as factorials. Term with b^8 in (a + b^2)^10

**math**

Simplify the following expression. (n-1)!/n!

**English Helppppp**

a persuasive argument that will promt your college to offer a summer block of cources that deal exclusively with current trends in the career field in which you are pursuing a degree, or in a field in which you have a keen interest. ok i plan to write about fashion designing b...

**chemistry**

saADFFF

**chemistry**

1232

**english**

gfhcgc

**math**

Area A sequence of smaller squares is formed by connecting the midpoints of the sides of a larger square. (a) If the area of the largest square is 1 square unit, determine the first five terms of a sequence that describes the area of each successive square. (b) Use a formula t...

**Essay (Please proofread) I appre**

i appreciate all the help, these were quality suggestions that will help my paper sound better. Thanks for all your help!

**Essay (Please proofread) I appre**

New Orleans Emergency Operations Plan FY12 According to, The Federal Response to Hurricane Katrina: Lessons Learned, Hurricane Katrina prompted an extraordinary national response that included all levels of government—Federal, state, and local—the private sector, fai...

**english**

can i submit essays here to be reviewed? if so where do i do that at? Thanks

**Math: Derivatives**

How did you get the answer? I don't quite understand. Thanks

**Math: Derivatives**

Use the shortcut rules to mentally calculate the derivative of the given function f(x) = −x + (3/x) + 1 After deriving it, I got -1+(0/1)+0= -1 But this answer is wrong, and I don't know why. Thank You

**Calc 1 (Optomization)**

A rectangular storage container with an open top is to have a volume of k cubic meters. The length of its base is twice its width. The material for the base costs $6 per square meters and the material for the sides costs $10 per square meter. Find the dimensions of the contain...

**math**

There are 15 students in Marcelo chess club. There are 2 times as many boys as girls . Howm many girls are in the club?

**AP Chem**

Sulfuric acid (H2SO4) is a very strong diprotic acid. If 0.054 moles of sulfuric acid is mixed with water to make 667 milliliter of solution,what is the molarity of H+? Answer in units of M doing mole/liter doesn't work

**Math**

Find the equation of the tangent to the graph at the indicated point. f(x) = x^2 − 1; a = 3 and f(x) = x^2 − 8x; a = −9 whats the difference between 1 and 8x. What formula do I use and how should i solve both of these problems? Thank you

**physics**

A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the water to the top of t...

**math**

would you divide 65 by 3 to find the lenght

**math**

a bicycle wheel has a circumfrence of 65in what can i do to find the length of one spoke

**Physics **

Tom the train and Dan are involved in an elastic collision. A 2.5 kg Tom is, at rest but is approached head-on by a 5.0 kg Dan moving at 0.60 m/s. The force-separation graph for the ensuing collision is given: the picture of the graph is found here: i54.tinypic (dot) com/2zyft...

**statistics**

Show the work for 750 x 23%, how do you do it?

**physics**

The system shown below consists of a block of mass M = 4.4 kg resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging block of mass m = 1.9 kg. The pulley is a uniform di...

**Computer Science (java1)**

can someone please tell me the equation for compshift? double Angle = 45.0; double AngleRadians; double ComptonShift ; //calculations AngleRadians = Math.toRadians(Angle); ComptonShift = Helpppp here

**chemistry**

an ammonia molecule, NH3 travels at about 658 m/s at room temperature. How fast would a molecule of hydrogen sulfide, H2S travel under the same conditions?

**Math**

6ab + 4bc - 3bc + bc

**English 11**

Roscoe is correct

**Math: Limits**

Estimate the limit numerically. lim as x→(approaches to)5 6e^(x − 5) How do I solve it? I don't plug in the numbers do I? Then how do I do this as well? What should I do to solve lim x→(approaches to)− infinity 6xe^(7x) Do I disregard the other numb...

**english 11**

Connexus answers d,b,d,c,d

**critical thinking**

Identify mission-related environmental risks?

**physics**

You throw a 134 g ball straight up to a height of 43.0 m. (a) Assume that the displacement of your hand is 0.70 m as you throw the ball straight up. How long is the ball is in your hand? (b) Calculate the average force exerted by your hand while you are throwing it.

**physics**

A physics student playing with an air hockey table (a frictionless surface) finds that if she gives the puck a velocity of 5.30 m/s along the length (2.80 m) of the table at one end, by the time it has reached the other end the puck has drifted 5.19 cm to the right but still h...

**math**

a flagpole cast a shadow that is 26ft long. At the same time, a yardstick cast a shadow that is 4ft long. How tall is the flagpole

**Math**

Real rate = 11-3.8 = 7.2% 1,500,000/(1+0.072)^40= 92960.80 To check this is correct you can do: 92960.80*(1+0.072)^40= 1,500,000

**Pre-Cal**

If the interest on a long-term Canadian(3/8%) investment is compounded continuously, how long will it take the value of an investment to triple? (Give the answer correct to two decimal places.) Got 19 years--its wrong, can't find reason. Thanks.

**college**

Solve the problem. Round to the nearest cent. Joan wants to have $250,000 when she retires in 27 years. How much should she invest annually in her annuity to do this if the interest is 7% compounded annually? A) $1861.10 B) $3356.43 C) $2672.15 D) $937.86

**physics**

you get this one yet? can't figure it out either..

**Physics **

If a bicyclist of mass 68.0 kg (including the bicycle) can coast down a 7.00° hill at a steady speed of 6.20 km/h because of air resistance, how much force must be applied to climb the hill at the same speed (and the same air resistance)?

**physics**

2nd part...(ma)(v0 + 1/2at) a = 9.8 Havent figured out first part either

**physics**

A 61.7 kg person jumps from rest off a 2.98 m-high tower straight down into the water. Neglect air resistance during the descent. She comes to rest 1.19 m under the surface of the water. Determine the magnitude of the average force that the water exerts on the diver. This forc...

**algebra**

never mind i think i figured it out.I got the answer 17.and right now, i think it is correct so adios!!!!

**algebra**

please

**algebra**

i really need help with this!!

**algebra**

anybody there????

**algebra**

yoo hoo!!!!!!?????

**algebra**

what number is the simplified expression equal to, 13 - 7 + (2 x 5 - 1) divided by 3 + 7. can someone help me with this???

**algebra**

thanks dude.so the answer or slution would be 16???

**algebra**

what number is equivalent to this expression,(4 x 9 - 13) - 15 divided by 5 x 2 - 1??? can someone help me with this.

**Algebra**

Gymnast Clothing manufactures expensive soccer cleats for sale to college bookstores in runs of up to 500. Its cost (in dollars) for a run of x pairs of cleats is C(x) = 3000 + 9x + 0.1x2 (0 ≤ x ≤ 500). Gymnast Clothing sells the cleats at $130 per pair. Find the r...

**Short Stories**

1.In "Paul's Case," why does Paul go to work early? A. He didn't want to get caught skipping school. B. He liked looking at the pictures in the art gallery. C. He wanted to wrestle with the other boys. D. He didn't want to lose his job. (B) ? 2. Which one...

**english**

Can't*

**english**

I've gotten my books, And have done all my work, this is my last section and I don't know these stories, I can seem to find them in any of my books.

**english**

Well as you can see its not all 1-20 the ones I left out were the ones I know, I'm having some trouble with these..

**english**

1.In "Paul's Case," why does Paul go to work early? A. He didn't want to get caught skipping school. B. He liked looking at the pictures in the art gallery. C. He wanted to wrestle with the other boys. D. He didn't want to lose his job. 2. Which one of th...

**us history**

The Socialist party a.) stood at its pinnacle in the early 1900's. b.) elected 33 candidates as mayor in the early 1900's. c.) elected two socialists to Congress in the early 1900's. d.) All of the above. I say it is d.) all of the above, am I right?

**chemistry/help**

1) Oxygen and boron are in the same period . When they form a compound----- is written first.Phosphorus and arsenic are the same group. When they form a compound------is written first. A) oxygen/phosphorus B)oxygen/arsenic C)boron/phosphorus D)boron/arsenic answer is D 2) The...

**chemistry/check please**

1) Oxygen and boron are in the same period . When they form a compound----- is written first.Phosphorus and arsenic are the same group. When they form a compound------is written first. A) oxygen/phosphorus B)oxygen/arsenic C)boron/phosphorus D)boron/arsenic answer is D 2) The...

**Chemistry**

What would happen if MnO2 was mixed with KBrO3 ND 9 M sulfuric acid?

**math**

If every 6th customer gets a coupon for free fruit snacks and every 9th customer gets a coupon for free fruit juice which customer will be the first to get both free fruit and free juice?

**physics**

Can't figure this one out myself either...gotten any further into it? Have tried multiple ways with no success

**Physics**

.417s

**math**

Suppose a bag of marbles has 4 green, 2 red, 5 yellow, 1 brown, and 7 blue marbles. What is the probability of picking a green marble, replacing it, and then picking a brown marble?

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