# Mel

Popular questions and responses by Mel-
## FINANCE

Yield to call Six years ago, the Singleton Company issued 20-year bonds with a 14 percent annual coupon rate at their $1,000 par value. The bonds had a 9 percent call premium, with 5 years of call protection. Today, Singleton called the bonds. Compute the

*asked on September 18, 2007* -
## math-calculus

A spherical party balloon is being inflated with helium pumped in at a rate of 12 cubic feet per minute. How fast is the radius growing at the instant when the radius has reached 1 ft?

*asked on December 17, 2012* -
## mathematics

How do i calculate if a function is linear or identical

*asked on August 11, 2020* -
## Physics

A 60 cm long wire is oriented from east to west directly above the equator and carries a current of 5 A (toward the east). What is the magnitude and direction of the magnetic force on this wire due to the earth’s magnetic field (30 µT oriented south and

*asked on July 24, 2019* -
## Quick calc question

Use the table below to evaluate the derivative with respect to x of g of f of 2 times x at x = 1. x 1 2 3 4 f(x) 6 1 8 2 f ′(x) 6 1 8 2 g(x) 1 4 4 3 g ′(x) 9 5 5 –4

*asked on January 30, 2016* -
## Calculus

The position function of a particle in rectilinear motion is given by s(t) = 2t^3 – 21t^2 + 60t + 3 for t ≥ 0. Find the position and acceleration of the particle at the instant the when the particle reverses direction. Include units in your answer.

*asked on January 8, 2016* -
## physics

A 5 kg block is placed near the top of a frictionless ramp, which makes an angle of 30o degrees to the horizontal. A distance d = 1.3 m away from the block is an unstretched spring with k = 3000 N/m. The block slides down the ramp and compresses the

*asked on March 11, 2012* -
## Quick calc question

Which of the following definite integrals could be used to calculate the total area bounded by the graph of y = 1 – x2 and the x-axis? the integral from 0 to 1 of the quantity 1 minus x squared, dx plus the integral from 1 to 2 of the quantity 1 minus x

*asked on February 12, 2016* -
## Quick calc question

The Riemann sum, the limit as the maximum of delta x sub i goes to infinity of the summation from i equals 1 to n of f of the quantity x star sub i times delta x sub i , is equivalent to the limit as n goes to infinity of the summation from i equals 1 to n

*asked on February 11, 2016* -
## chem

One mole of H2O(g) at 1.00 atm and 100.°C occupies a volume of 30.6 L. When one mole of H2O(g) is condensed to one mole of H2O(l) at 1.00 atm and 100.°C, 40.66 kJ of heat is released. If the density of H2O(l) at this temperature and pressure is 0.996

*asked on November 26, 2007* -
## Urgent math help!!

What is the value of sinθ given that (−3,4) is a point on the terminal side of θ ? −3/5 3/5 4/5

*asked on April 13, 2017* -
## physics

if two lightning bolts hit exactly the same place, act exactly the same time in one frame of reference, is it possible that observers in other freames will see the bolts hitting at different times or at the different places? explain.

*asked on September 22, 2011* -
## chem

You are given the following data. P4(s) + 6 Cl2(g) 4 PCl3(g) H = -1225.6 kJ P4(s) + 5 O2(g) P4O10(s) H = -2967.3 kJ PCl3(g) + Cl2(g) PCl5(g) H = -84.2 kJ PCl3(g) + 1/2 O2(g) Cl3PO(g) H = -285.7 kJ Calculate H for the following reaction. P4O10(s) + 6

*asked on December 1, 2007* -
## Quick calc question

Find the x-coordinates where f '(x) = 0 for f(x) = 2x + sin(4x) in the interval [0, π].

*asked on January 29, 2016* -
## Calculus

What is the maximum volume in cubic inches of an open box to be made from a 16-inch by 30-inch piece of cardboard by cutting out squares of equal sides from the four corners and bending up the sides? Your work must include a statement of the function and

*asked on January 8, 2016* -
## Physics

Find an expression in terms of M, mu, and theta for the speed of waves on the string.Express your answer in terms of the variables M, mu, theta, and appropriate constants. The picture shown is just of a block with mass m on an inclined frictionless surface

*asked on November 27, 2012* -
## chemistry

water vapor and nitrogen dioxide gas NO2 are cimbined to manufacture ammonia. a by product of this reaction is oxygen gas. write a balanced equation for this reaction. i do not understand this at all please help me figure it out

*asked on April 16, 2009* -
## physics

Hey can someone help with this. A movie stuntwoman drops from a helicopter that is 30.0 m above the ground and moving with a constant velocity whose components are 10.0 m/s upward and 15.0 m/s horizontal and toward the south. You can ignore air resistance.

*asked on September 26, 2008* -
## chem

Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (-2341 kJ/mol), C4H8 (-2755 kJ/mol), and H2

*asked on November 27, 2007* -
## science

how would you make 500.0mL of a 0.200M NaOH solution from a 15.0 M stock NaOH solution?? I assume that you want the volumes rather than the mechanics of carrying it out? a) How many moles do you need in the 500 ml to have 0.200 M? b) What volume of 15.0 M

*asked on April 5, 2007* -
## Quick calc question

Write the Riemann sum to find the area under the graph of the function f(x) = x2 from x = 1 to x = 5. 1. the summation from i equals 1 to n of the product of the quantity squared of 1 plus 5 times i over n and 4 over n 2. the limit as n goes to infinity of

*asked on February 12, 2016* -
## Mechanical Behavior on Materials / math

The television coverage of the World Series showed several remarkable slow-motion views of the deflection of the bat as it hit the ball. Major league wood baseball bats are made of ash. A typical major league bat has a length of 0.95m and a tapering

*asked on November 9, 2015* -
## chemistry

In a dry cell, MnO2 occurs in a semisolid electrolyte paste and is reduced at the cathode. The MnO2 used in dry cells can itself be produced by an electrochemical process of which one half-reaction is shown below. Mn2+(aq) + 2 H2O(l) MnO2(s) + 4 H+(aq) + 2

*asked on May 5, 2015* -
## algebra 2

If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the first equation is substituted into the second equation. x + y = 2 3x + 2y = 9

*asked on August 16, 2012* -
## Chemistry

Consider the following unbalanced equation. H1+(aq) + Fe(s) H2(g) + Fe2+(aq) What is the balanced oxidation half-reaction? What is the balanced reduction half-reaction? What is the balanced overall cell reaction?

*asked on June 8, 2012* -
## Algebra

x^2 + kx - 19 Find all values of k so that each polynomial can be factored using integers.

*asked on May 5, 2011* -
## calc

Given the position function, s of t equals negative t cubed divided by 3 plus 13 times t squared divided by 2 minus 30 times t, between t = 0 and t = 9, where s is given in feet and t is measured in seconds, find the interval in seconds where the particle

*asked on January 8, 2016* -
## Algebra

How to write |y|-2=0 in standard form?

*asked on February 12, 2017* -
## Social studies

Which of the following phrases might a Republican Congress have used to describe President Johnson's Reconstruction plans

*asked on January 24, 2017* -
## programming and visual basics

Using pseudocode or a flowchart write a program that does the following: Design the logic for the game Hangman, in which the user guesses letters in a hidden word. Store the letters of a word in an array of characters. Display a dash for each missing

*asked on March 30, 2016* -
## Language Arts

what is the participle or participial phrase in the following sentence: The art students, brought by bus, toured the museum.

*asked on March 29, 2016* -
## Quick calc question

Use geometry to evaluate the integral from 0 to 10 of the function f of x, dx for f of x equals 5 for x less than or equal to 5 and equals the quantity 10 minus x for x greater than 5 . 12.5 25 37.5 Cannot be found

*asked on February 12, 2016* -
## psychology

Leigh, B. C. (1993). Alcohol consumption and sexual activity as reported with a diary technique. Journal of Abnormal Psychology, 102, 490-493. doi:10.1037/0021-843X.102.3.490 This is the article to utilize when answering the questions 1. What are the

*asked on July 6, 2014* -
## Physics

Approximately 4x10^9 kg of matter is converted into energy in the sun per second. Express the power output of the sun in watts.

*asked on September 27, 2012* -
## Physical Science

I balanced Li(s) + Cl2(g)= LiCl(s) to 2Li(s) + Cl2(g)= 2LiCl(s) Now the question is, if you have 39.8g Li, how many moles of LiCl would you have? I am stuck on this part. Any help would be appreciated.

*asked on March 18, 2012* -
## physics

An object of mass M = 4 kg slides from rest a distance d = 2 m down a frictionless inclined plane where it encounters a spring. It compresses the spring a distance D = 1.2 m before stopping. The inclined plane makes an angle q = 20° with the horizontal.

*asked on March 11, 2012* -
## Business Ethics

You are a high level manager who has been asked to present a PowerPoint presentation to your employees on the concepts of stakeholders and corporate social responsibility. Your PowerPoint presentation must include the following: • What is a stakeholder?

*asked on April 29, 2011* -
## chem

calculate the max wavelength of light capable of removing an electron for a hydrogen atom from the energy state characterized by the following : n=2 in nm n=4 in nm

*asked on December 6, 2007* -
## chem

The specific heat capacity of silver is 0.24 J/°C·g. (a) Calculate the energy required to raise the temperature of 140.0 g Ag from 273 K to 295 K. J (b) Calculate the energy required to raise the temperature of 1.0 mol Ag by 1.0°C (called the molar heat

*asked on November 26, 2007* -
## Quick calc question

If f(x) and g(x) are continuous on [a, b], which one of the following statements is false? the integral from a to b of the sum of f of x and g of x, dx equals the integral from a to b of f of x, dx plus the integral from a to b of g of x dx the integral

*asked on February 12, 2016* -
## Quick calc question

Determine the interval on which f(x) = ln(x) is integrable. (0, ∞) [0, ∞) (−∞, 0) U (0, ∞) All reals

*asked on February 12, 2016* -
## Quick calc question

Given that the antiderivative of f of x equals 1 divided by x is F(x) = Ln|x| + C, evaluate the integral from 1 to 2 of the 1 divided by x, dx. ln3 1/2 -1/2 ln2

*asked on February 12, 2016* -
## Quick calc question

For f of x equals the quotient of the quantity 1 minus x and the quantity 1 plus x and g of x equals the quotient of the quantity x and the quantity 1 plus x, find the simplified form for f [g(x)] and state the domain.

*asked on January 30, 2016* -
## chemistry

It is found that an average volume of 24.25 ml of approximately 0.1 M NaOH is required to reach an endpoint in a titration with 25.00ml of 0.09917 M HCl solution. What is the NaOH concentration? Make sure to give answer to four significant figures.

*asked on March 27, 2015* -
## Statistics

Daily water intake (including water used in drinks such as coffee, tea and juice) for Canadian adults follows a normal distribution with mean 1.86 litres and standard deviation 0.29 litres. (a) Can you calculate the probability that the mean daily water

*asked on November 4, 2014* -
## Physics

You throw a ball straight into the air from a height of 4 feet and with a speed of 8.22 m/s. The moment the ball leaves your hand you start running away at a speed of 3.36 m/s. How far are you from the ball, the moment it hits the ground? (what are the

*asked on February 3, 2014* -
## Math

Simplify. Remember to use absolute-value notation when necessary. If a root cannot be simplified, state this. 4ã(6a)^4

*asked on August 4, 2013* -
## chem biochem bio

You have the following stock solutions and solid chemicals in your lab: 1.5M NaCL 0.2M Tris buffer, pH 8.0 10 mg/ml Bovine serum albumin (BSA) MgCl2 (solid, anhydrous) MW = 95.211 g/mole (95% pure) How would you make 250 ml of the following solution???

*asked on March 10, 2013* -
## sociology 101

which three of the most important sociological thinkers and use those ideas to explain the Senge, Hawken et al, and Kemmis readings

*asked on December 3, 2012* -
## Physics

A person walks the path shown below. The total trip consists of four straight-line paths. Path 1 is 30.0 m due east. Path 2 is 200.0 m due south. Path 3 is 140.0 m 30.0° south of west. Path 4 is 170.0 m 60.0° north of west. At the end of the walk, what

*asked on November 1, 2012* -
## Physics HELP!

A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/ min. When switched off, it rotates through 41.0 revolutions before coming to rest. (a) Find the angular speed in rad/s. (b) Find the displacement in radians. (c) Find the

*asked on October 26, 2012* -
## medical

Mr johnson is admitted to the hospital with chest and epigastic pain. he is evaluated by er department doctor with a diagnosis of rule out myocardial infraction. mr johnson is then transferred to a larger facility for further workup.... What is the

*asked on October 14, 2012* -
## Chemistry

HELP! :) Consider the following reaction: 3A to 2B The average rate of appearance of B is given by deltaB divided by delta t. Comparing the rate of appearance of B and the rate of disappearance of A, we get Delta B divided by Delta t= ___* (-delta A

*asked on May 24, 2012* -
## Physical Science

Please help me with this. I just don't get it. The average rate of chemical weathering of carbonate rock in an urban area is 2.1 x 10^-3 mm/yr. The depth of lettering of the tombstones shown in the table below was measured in 2010: Date on Tombstone Age

*asked on April 21, 2012* -
## Physical Science

Can't figure this out, HELP!: What is the velocity (v) of a stream with a discharge (Q) of 8.53 x 10^3 m 3/s and a cross-sectional area (A) of 5.27 x 10^3 m2?

*asked on April 21, 2012* -
## physics

A physics student pulls a block of mass m = 23 kg up an incline at a slow constant velocity for a distance of d = 4 m. The incline makes an angle q = 25° with the horizontal. The coefficient of kinetic friction between the block and the inclined plane is

*asked on March 11, 2012* -
## Math

What multiplication fact can be found by using the arrays for 2 x 9 and 5 x 9?

*asked on February 9, 2012* -
## MATH

A RADIO USES THE ENERGY EQUIVALENT 1/20 TON OF COAL PER YEAR. FIND THE ENERGY EQUIVALENT IN TONS OF COAL FOR OPERATING A RADIO FOR FOUR YEARS.??

*asked on November 22, 2011* -
## health

Write a 300- to 350-word paper on the causes, symptoms, management, and prevention of cardiovascular disease.

*asked on October 27, 2011* -
## physics

Stemming a chimney. A rock climber of mass 71 kg wants to make her way up the crack between two rocks as shown in the figure below. The coefficient of friction between her shoes and the rock surface is ìS = 0.90. What is smallest normal force that she can

*asked on October 6, 2011* -
## World History Honors

is this primary source ? The Black Death A Description of the Plague This first account is from Messina, and it described the arrival and initial progress of the disease. At the beginning of October, in the year of the incarnation of the Son of God 1347,

*asked on September 26, 2011* -
## World History

What is it about Greco-Roman culture that creates positive feelings in people???

*asked on September 11, 2011* -
## English

What is the meaning of the poem snow & ice by Quincy Troupe?

*asked on August 16, 2011* -
## World History Honors

Hi! Can anyone help me with this assignment...? Using the primary source documents and information from your chapter, form a thesis that describes why Herodotus referred to Egypt the way he did (Why he referred to Egypt as the “gift of the Nile.”)

*asked on August 12, 2011* -
## World History

Hi! I've been having trouble doing my world history assignment.. if anyone can help; here are the instructions.. This assignment asks you to write about an event from two different points of view. Historians often read conflicting accounts of events and

*asked on August 7, 2011* -
## Trig

How do I prove the following Identity? sec x(sec x-cos x)=tan^2x If there is a certain website or suggestion to help with these type of equations I would greatly appreciate it. I've been studying these for a while but still get pretty confused.

*asked on May 31, 2011* -
## Chemistry

How many grams of bromine can be obtained by the decomposition of 92.0 of MgBr2?

*asked on April 27, 2011* -
## history

what were the reasons our forefathers divided the government into three branches?

*asked on November 5, 2010* -
## physics

A block weighing 8.3 N requires a force of 2.6 N to push it along at constant velocity. What is the coefficient of friction surface? A weight W is now placed on the block and 8.2 is needed to push them both at constant velocity. What is the weight W of the

*asked on March 19, 2010* -
## physics

A bag of sugar weighs 6.00 lb on Earth. What would it weigh in newtons on the Moon, where the free-fall acceleration is one-sixth that on Earth?

*asked on February 17, 2010* -
## MATH

Tara says that 1/2 of a salad is always the same amount. Lynn says that it could be different amounts, depending on how large the salad is. Who is correct? Why?

*asked on January 25, 2010* -
## Algebra 1

"The sum of two measures of two angles is 180 degrees. What is the measure of each angle if one angle is 30 degrees more than twice the other?" would the equation be: x+(2x+30)=180 ???? if it isn't, please explain! thanks!

*asked on February 16, 2009* -
## math

Charlie wants to buy a $900 TV in 9 months. How much should he invest now at 17% simple interest to have the money in 9 months?

*asked on January 28, 2009* -
## chemistry - atoms

Understanding Chemical Bonding This is a short activity to introduce you to the concept of chemical bonding. In this activity, you will take the number of your birth month as your atomic number. Using this information, you will be able to determine the

*asked on September 11, 2008* -
## CALCULUS

a man weighiing 7-kg lies in a hammock whose ropes make angles of 20 and 25 degrees with the horizontal. What is the tension in each rope?

*asked on February 17, 2008* -
## chem

A balloon filled with 22.3 mol helium has a volume of 500. L at 0.0°C and 1.00 atm pressure. The temperature of the balloon is increased to 38.0°C as it expands to a volume of 570. L, the pressure remaining constant. Calculate q, w, and E for the helium

*asked on November 26, 2007* -
## chem

2 HNO3(aq) + Na2CO3(s) 2 NaNO3(aq) + H2O(l) + CO2(g) (a) Calculate H° for this reaction. kJ

*asked on November 26, 2007* -
## chem

A 75.0 L stainless steel container was charged with 3.00 atm of hydrogen gas and 4.00 atm of oxygen gas. A spark ignited the mixture, producing water. What is the pressure in the tank at 25°C? in atm What is the pressure in the tank at 125°C? in atm

*asked on November 17, 2007* -
## dr. bob

Use the data in Table 5.4 to calculate the partial pressure of He in dry air assuming that the total pressure is 1.0 atm. Assuming a temperature of 21°C, calculate the number of He atoms per cubic centimeter. atoms/cm3 .00000524 - atmospheric composition

*asked on November 17, 2007* -
## chem

In 1897 the Swedish explorer Andree tried to reach the North Pole in a balloon. The balloon was filled with hydrogen gas. The hydrogen gas was prepared from iron splints and diluted sulfuric acid. The reaction is given below. Fe(s) + H2SO4(aq) FeSO4(aq) +

*asked on November 16, 2007* -
## chem

75L stainless steel container was charged with 3 atm of hydrogen gas and 4 atm of oxygen gas. a spark ignited the misture, producing water. what is the pressure of the tank at 25C? at 125C?

*asked on November 16, 2007* -
## chem

C6H12O6(aq)->2 C2H5OH(aq) + 2CO2(g) Fermentation of 744mL grape juice(density=1.0 g/cm^3) is allowed to take place in a bottle witha V of 825mL until 12% by volume is ethanol (C2H5OH). Assuming CO2 is insoluble in H2O what would the pressure be of the CO2

*asked on November 16, 2007* -
## chem

given the reaction - Fe(s)+H2SO4(aq)->FeSO4(aq) + H2(g) the volume of the balloon was 4400m^3 and the loss of hydrogen gas during filling was est. at 20%. what mass of iron splints and 87% (by mass) H2SO4 were needed to ensure complete filling of the

*asked on November 15, 2007* -
## chemistry

hot-air balloon is filled with air at a volume of 3.64 x 10^3 m^3 at 745 torr at 39C. the air in balloon is heated to 60C, causing balloon to expand to a volume of 4.50x 10^3 m^3. what is the ratio of the number of moles of the air in heated balloon to

*asked on November 15, 2007* -
## chem

The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm means 1 part of solute for every 106 (one million) parts of solution. Mathematically by mass: ppm = µg solute / g solution = mg

*asked on November 3, 2007* -
## chem

I have the following problems- write net ionic equations for reactions if no reaction write NR.... silver nitrate and ammonium carbonate sodium phosphate and potassium nitrate silver nitrate and barium chloride copper (II) chloride and sodium hydroxide

*asked on November 2, 2007* -
## chem

how much of each of the following substances would you add to water to prepare 1.20L of a .85M solution? (sodium carbonate from the pure solid) ? I am stuck on how to work this one out, too. thanks

*asked on November 2, 2007* -
## FINANCE

Bond valuation Nungesser Corporation’s outstanding bonds have a $1,000 par value, a 9 percent semiannual coupon, 8 years to maturity, and an 8.5 percent YTM. What is the bond’s price?

*asked on September 18, 2007* -
## Finance

Interest rate premiums A 5-year Treasury bond has a 5.2 percent yield. A 10-year Treasury bond yields 6.4 percent, and a 10-year corporate bond yields 8.4 percent. The market expects that inflation will average 2.5 percent over the next 10 years (IP10 _

*asked on September 15, 2007* -
## social studies

i need to know what in the body there is 11 of or what 11 may relate to a certain body part? Need human physiology help here. Thank you for using the Jiskha Homework Help Forum. The first book on this site mentions 11 body systems:

*asked on July 19, 2007* -
## ~Chem

Check my work please The solubility product of nickel (II) hydroxide at 25°C is 1.6 x 10-16. Calculate the molar solubility of nickel (II) hydroxide in 0.100 M sodium hydroxide. Ni(OH)2 Ni2+ + 2OH– I = Ni2+ is 0 & 2OH– is 0.1 Change = Ni2+ is X and

*asked on May 14, 2007* -
## math/geometry

(use the law of sines) Solve triangle ABC if a=19, b=16, m

*asked on March 13, 2020* -
## Statistics

Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 10. Use the 68-95-99.7 rule to find out the percentage of scores less than 100

*asked on January 23, 2020* -
## stats

I need help. I am so so lost and need the answers and step by step if possible. I have tried everything but I think I'm just.. having a huge brainfart. I need the answers and the step by step please A quiz consists of 8 multiple choice questions, each with

*asked on August 5, 2019* -
## math stats

When 100 students at UCF were given a calculus problem that required the use of integration by parts, 95 were able to solve it. When 100 FAU students were given the same problem, 68 were able to solve it. What is the test statistic associated with the

*asked on August 5, 2019* -
## algebra

If f(x)=x+7 and g(x)=1/x-13, what is the domain of (f x g)(x)? Please explain.

*asked on April 10, 2019* -
## Math

Can someone get the math for the worksheet? I'm havibg troubles getting the answers and how to get them. Thxs!

*asked on March 7, 2019* -
## Calculus

How do I take the indefinite integral of (5-x)/(2x^2+x-1)? I've tried splitting it into two integrals and even completing the square on the bottom but neither of those led me anywhere. Help?

*asked on February 7, 2018* -
## Science

A coach wants to find out the speed of the runners on the track team.Tell what simple equipment the coach need in order to do this and explain how it should be done.

*asked on January 21, 2018* -
## Pre-calculus

Can someone help me with this equation: y = (2*10^(-44))*(e^(0.055x))?

*asked on May 6, 2017*