# Nate

Popular questions and responses by Nate-
## calculus

If a snowball melts so that its surface area decreases at a rate of 3 cm2/min, find the rate at which the diameter decreases when the diameter is 9 cm. (Give your answer correct to 4 decimal places.)

*asked on November 29, 2011* -
## phsycis

A tight-rope walker walks across a 30.0 m long wire tied between two poles. The center of the wire is displaced vertically downward by 1.0 m when he is half-way across. If the tension in both halves of the wire at this point is 3675 N, what is the mass of

*asked on September 20, 2012* -
## physics-energy

A toy gun uses a spring to project a 5.3 g soft rubber sphere vertically. The spring constant is 8.0 N/m, the barrel of the gun is 15 cm long, and a constant frictional force of 0.032 N exists between barrel and projectile. How high does the projectile go

*asked on February 19, 2010* -
## Finance

When purchasing the rights to a royalty, depending on the seller’s desired cash flows, Royalty Pharma can provide different types of payment schedules, such as an accelerated royalty or a synthetic royalty. In an accelerated royalty investment, Royalty

*asked on March 6, 2020* -
## physics

A gray kangaroo can bound across a flat stretch of ground with each jump carrying it 9.3 m from the takeoff point. If the kangaroo leaves the ground at a 17.6 degree angle, what is its takeoff speed?

*asked on September 8, 2012* -
## English

The day we found the sharks' teeth was foggy and cool. Moisture hung in the air so thick you could almost see it sparkling in the dim sunlight. There were days, early in the summer like this one, where it seemed there was more water in the air than in the

*asked on August 16, 2019* -
## Analytic Geometry

what is the radius of the circle circumscribing an isosceles right triangle having an area of 162 sq. cm? Show your solutions pls. Thank you!

*asked on June 29, 2016* -
## physical science

a 1.0 kg sample of metal with a specific heat of 0.50KJ/kgCis heated to 100.0C and then placed in a 50.0g sample of water at 20.0C. What is the final temperature of the metal and the water? I can't figure this out. Is the answer room temperature???

*asked on November 7, 2007* -
## physics

The engine of a 1250 kg car provides a forward directed force of 3,560 N. If the car accelerates at a rate of 2.60 m/s2, what is the total resistive force (wind resistance, friction, etc.) acting on the car?

*asked on September 13, 2012* -
## algebra

Assume that y varies inversely as x. If y is 2.4 when x = 5, which is an equation that relates x and y?

*asked on February 5, 2018* -
## algebra

The light intensity of a light bulb varies inversely as the square of the distance from the light bulb. The function I(d) = k/d^2 models this situation, where I is the light intensity, d is the distance from a light source, and k is a constant. If the

*asked on February 5, 2018* -
## physics

A construction worker is carrying a load of 40 kilograms over his head and is walking at a constant velocity. If he travels a distance of 50 meters, how much work is being done?

*asked on October 8, 2014* -
## Physics

A 69.5 kg painter is on a uniform 30.0 kg scaffold supported from above by ropes . There is a 5.0 kg pail of paint to one side, as shown. The scaffold is 6 m long. 1.0 m on both ends and 4 m in the middle. From the left end at 1.0 m to the pail is 1.0 m.

*asked on November 3, 2010* -
## physics

A merry go round has a radius of 3.5 meters. How far does a child standing at the edge travel (path length) if the wheel is rotated 13.0 radians?

*asked on April 11, 2010* -
## Chemistry

1). Calculate the initial and final pH when 5.0, 10.0, and 100mL of 0.100M HCL is added to (a) 100mL of water (b) 100mL of a buffer which is 1.50M acetic acid and 1.20M sodium acetate 2). Develop a recipe for making this buffer from acetic acid, sodium

*asked on March 6, 2016* -
## Physics

A small sphere X of mass M is placed a distance d from a point mass. The gravitational force on the sphere X is 90 N. Sphere X is removed and a second sphere Y of mass 4M is placed a distance 3d from the same point mass. What is the gravitational force on

*asked on May 3, 2018* -
## Chemistry

An 80.0 g sample of a gas was heated from 25 degree C to 225 degree C. During this process, 346 J of work was done by the system and its internal energy increased by 7495 J. What is the specific heat of the gas? J/(g∗C)

*asked on October 22, 2013* -
## Chemistry

An ideal gas with an initial volume of 2.30L is cooled to 12.00 Celsius where its final volume is 1.85L. What was the temperature initially?

*asked on February 7, 2011* -
## Physics

A 1-kg ball initially moving with a speed of 3m/s strikes a stationary 2kg ball head-on. After the collision both balls stick together. What are the final velocities of the two balls?

*asked on April 6, 2015* -
## algebra

A model rocket is launched upward with an initial velocity of 200 feet per second. The height, in feet, of the rocket t seconds after the launch is given by h = −16t2 + 200t. How many seconds after the launch will the rocket be 380 feet above the ground?

*asked on September 14, 2014* -
## physics

A 25 kg chair initially at rest on a horizontal floor requires 393 N horizontal force to set it in motion. Once the chair is in motion, a 301 N horizontal force keeps it moving at a constant velocity. a) Find the coefficient of static friction between the

*asked on November 18, 2010* -
## Math

The MPG for a certain compact car is normally distributed with a mean of 31 and a standard deviation of 0.8. what is the probability that the MPG for a randomly selected compact car would be less than 32?

*asked on March 25, 2009* -
## Math

Compute E(X) for the following random variable X : X=Number of tosses until getting 4 (including the last toss) by tossing a fair 10-sided die.

*asked on March 3, 2020* -
## algebra

A truck costs $60,000. It depreciates in value $6,000 per year. Write a linear model in the form v(t)=mt+b, where v(t) represents the current value of the truck after t years of ownership

*asked on February 17, 2020* -
## Math

An artist wants to use silver wire to make a square that has a side length of 16 inches, then use copper wire to make the largest circle that can possibly fit in the square. At the local jewelry store, the artist can purchase silver wire for $8.75/ft and

*asked on November 22, 2019* -
## algebra

The force, F, needed to break a board in a martial arts class varies inversely with the length, L, of the board. If it takes 24 pounds of pressure to break a board 2.5 feet long, how many pounds of pressure would it take to break a board that is 18 inches

*asked on February 5, 2018* -
## Math

The length of a rectangle is 2ft less than tree times width the area is 60 square ft. Find the length of the rectangle.

*asked on August 16, 2017* -
## Business English

Identify and correct the errors in the following to create parallel structure: To narrow a web search a. Put quotation marks around a phrase when you want an exact term. b. Many search engines have wild cards (usually an asterisk) to find plurals and other

*asked on January 18, 2015* -
## algera

The fuel efficiency for a certain midsize car is given by E(v) = −0.018v^2 + 1.440v + 3.9 where E(v)is the fuel efficiency in miles per gallon for a car traveling v miles per hour. (a) What speed will yield the maximum fuel efficiency? Round to the

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

choose a number 1 to 100. What is the probability that the number is not a multiple of 5?

*asked on March 8, 2013* -
## physics

You are part of a team to help design the atrium of a new building. Your boss, the manager of the project, wants to suspend a 16.0 kg sculpture high over the room by hanging it from the ceiling using thin, clear fishing line (string) so that it will be

*asked on September 27, 2012* -
## physics

A rocket is fired straight up through the atmosphere from the South Pole, burning out at an altitude of 208 km when traveling at 5.8 km/s. (a) What maximum distance from Earth's surface does it travel before falling back to Earth? I know how to do the

*asked on March 29, 2010* -
## physics

Barry Bee is flying through the air when he is struck by a truck. Which encounters more force, him or the truck?

*asked on February 24, 2010* -
## Physics

A communications satellite is moving at a constant speed in a circular orbit around Earth. At any given instant in time, what is the resultant force on the satellite? A. zero B. equal to the gravitational force on the satellite C. equal to the vector sum

*asked on May 3, 2018* -
## Algebra 2

Describe the transformation to the parent function in order to graph the following function, then write the equations of the Vertical and Horizontal Asymptote. Y = _-2___ + 4 x

*asked on February 15, 2018* -
## Algebra

Is H=-4.9t²+vt+s the formula for a projectile motion, where h is height in meters t time in seconds and v velocity in meters per second and s start height in meters

*asked on June 13, 2017* -
## Chemistry

What is the subshell designation for an electron with the following set quantum numbers? 1) n = 1; l = 0 2) n = 3; l = 2; mi = -1 3) n = 4; l = 3 3) n = 2; l = 0; mi = 0

*asked on April 9, 2017* -
## Math

You arrive home to find that your 45 foot by 20 foot basement has 3 inches of water in it. A) If 1 cubic foot of water is about 7.48 gallons, how much water will you be pumping out of your basement? Express your answer rounded to the nearest tenth of a

*asked on October 4, 2016* -
## Math

A round silo is 40 feet tall and has a 25 foot radius. How high would a load of 37000 cubic feet of grain fill the silo? Express your answer rounded to the nearest foot.

*asked on October 4, 2016* -
## Physics

A uniform disk of radius 0.45 m is mounted on a frictionless, horizontal axis. A light cord wrapped around the disk supports a 1 kg object, as shown. When released from rest the object falls with a downward acceleration of 4.5 m/s^2. What is the moment of

*asked on February 16, 2016* -
## math

A reading list contains 3 historical books and 4 science-fiction books. What is the probability that Tena will randomly choose a historical book for her first report and a science-fiction book for her second?

*asked on July 2, 2015* -
## algebra

The height in feet of a projectile with an initial velocity of 32 feet per second and an initial height of 240 feet is a function of time in seconds given by h(t) = −16t^2 + 32t + 240. (a) Find the maximum height of the projectile. ______ ft (b) Find the

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

The height in feet of a projectile with an initial velocity of 32 feet per second and an initial height of 240 feet is a function of time in seconds given by h(t) = −16t^2 + 32t + 240.

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

The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,

*asked on October 23, 2014* -
## Chemistry

How many grams of phosgenite can be obtained from 14.0 g of PbO and 14.0 g of NaCl in the presence of excess water and carbon dioxide?

*asked on November 4, 2013* -
## Calculus

List the critical numbers of the following function in increasing order. Enter N in any blank that you don't need to use. f(x) = (6x+6)/(5x^2+5x+5)

*asked on October 28, 2013* -
## Calculus

y = tan^-1(sqrt(5x^2-1)) find dy/dx

*asked on October 21, 2013* -
## Calculus

The radius of a circular disk is given as 24 cm with a maximal error in measurement of .2 cm. What is the percentage error?

*asked on October 10, 2013* -
## Calculus

Find the limit lim x->2 (2x^2 +1)/(x^2 + 6x -4)

*asked on November 30, 2012* -
## Math

If you had a new business and you had 30 customers the first week and 55 customers the second week and 80 customers the third week, what would you project for week 4? Explain how you arrived at your answer.

*asked on September 14, 2012* -
## Physics

You push your couch a distance of 3.6 m across the living room floor with a horizontal force of 198.0 N. The force of friction is 151.0 N. What is the work done by you, by the friction force, by gravity, and by the net force?

*asked on May 27, 2012* -
## math (geometry)

If p∨q is true, then what must be true about the truth values of p and q?

*asked on January 15, 2012* -
## physics

A crow sits on a clothesline midway between two poles as shown. Each end of the rope makes an angle of θ = 16° below the horizontal where it connects to the pole. If the combined weight of the crow and the rope is 8.4 N, what is the tension in the rope?

*asked on February 14, 2011* -
## english

What happened to John Howland?

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

Tarzan, who weighs 820 N, swings from a cliff at the end of a 20.0 m vine that hangs from a high tree limb and initially makes an angle of 22.0° with the vertical. Assume that an x axis extends horizontally away from the cliff edge and a y axis extends

*asked on February 21, 2010* -
## science

Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural

*asked on October 22, 2009* -
## Math

Let A , B , and C be events associated with the same probabilistic model (i.e., subsets of a common sample space), and assume that P(C)>0 . For each one of the following statements, decide whether the statement is True (always true), or False (not always

*asked on March 3, 2020* -
## Biology

If these parents were to have 12 children, what number (not what %) would we anticipate to have round/small eyes?

*asked on February 25, 2020* -
## English

f you were adjusting your reading rate to suit your purpose, how would you read this passage from Act II, Scene 5, of A Christmas Carol: Scrooge and Marley? SCROOGE. … I am light as a feather, I am happy as an angel, I am as merry as a schoolboy. [Yells

*asked on November 14, 2019* -
## Chemistry

the balanced equation for magnesium chlorate = magnesium chloride + oxygen

*asked on October 5, 2019* -
## history

why are people so negative toward you on this site

*asked on September 6, 2019* -
## Chemistry

Calculate concentration of solutions: 2.86 g Sodium Carbonate crystals Na2CO3.10H2O dissolved in 250 cm^3 of solution

*asked on September 1, 2019* -
## English

Which of the following describes a theme and not a topic? Bravery and being afraid Struggle and endurance Obstacles make us stronger Winning became Sam's goal I think it is D

*asked on August 16, 2019* -
## computer science

Suppose we are executing the DGIM algorithm for approximate counting of bits in a stream. Let the window size be 1000. (a) What is the largest possible bucket size in the representation of this stream? (b) Suppose each of the last 1000 bits is 1. What is

*asked on June 24, 2019* -
## Algebra

Line m passes through points (4, 9) and (2, 2). Line n passes through points (2, 2) and (6, 7). Are line m and line n parallel or perpendicular?

*asked on April 8, 2019* -
## history

how did the aztecs become so powerful

*asked on January 24, 2019* -
## Physics

Identify the correct neutrino (Ve, Vµ, Vτ or their anti-particles) a) π+ —> p° + e+ + v b) π+ —> p° + µ+ + v c) τ+ —> e- + v + v Please explain why too...I'm really lost. I'd appreciate any help.

*asked on May 21, 2018* -
## Physics

Identify the correct neutrino (Ve, Vµ, Vτ or their anti-particles) a) π+ —> p° + e+ + v b) π+ —> p° + µ+ + v c) τ+ —> e- + v + v Please explain why too...I'm really lost. I'd appreciate any help.

*asked on May 17, 2018* -
## Algebra 2

Describe the transformation to the parent function in order to graph the following function, then write the equations of the Vertical and Horizontal Asymptote. Y = _1__ + 5 x- 3

*asked on February 15, 2018* -
## Algebra 2

Jimmy is wanting to fence a rectangular area of his land along Elm Creek. He will only need to fence 3 sides. If Jimmy has 2000 ft of fencing and wants to enclose the largest possible area, determine the dimensions of the rectangular plot. Hint: Write an

*asked on February 15, 2018* -
## Algebra 2

Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution The volume V of gas varies inversely to the pressure P. The volume of a gas is 200 cm^3 under pressure of 32 kg/cm^2. What will be its volume under pressure of 40

*asked on February 15, 2018* -
## Algebra 2

Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution Y varies directly with x. If y = -4 when x = 2, find y when x = 6.

*asked on February 15, 2018* -
## Algebra 2

Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution Suppose B varies directly with C and inversely with D and the cube root of A. B = 4 when A = 27, C = 2, and D = 5. Find B when C = 3, A = 64, and D = 6.

*asked on February 15, 2018* -
## algebra

A pump can be adjusted to empty a 1000-liter pool at different rates. When operated at a rate of R liters per minute, the pump takes T minutes to empty the pool. Which equation below relates R and T correctly?

*asked on February 6, 2018* -
## algebra

A pump can be adjusted to empty a 1000-liter pool at different rates. When operated at a rate of liters per minute, the pump takes minutes to empty the pool. Which equation below relates and correctly?

*asked on February 5, 2018* -
## algebra

The time it takes to finish a job varies inversely as the number of workers helping with the job. If 8 workers require 12 hours to finish a job, how much time would 18 workers require to finish the same job?

*asked on February 5, 2018* -
## algebra

According to Boyle’s law, the volume V of a gas varies inversely to the pressure P exerted by the gas. The volume of a given gas under a pressure of 32 kg per cm2 is 200 cm3. What will be the volume of this gas when the pressure exerted is 40 kg per cm2?

*asked on February 5, 2018* -
## Math/Algebra

Can anyone help me? An 85-year-old woman in Rotorua, New Zealand, won't have to pay her library fine. A book she borrowed from the local library in 1945 was found during a move. Based on the borrowing rules pasted inside the front cover of the book, the

*asked on October 13, 2017* -
## Math

f(x)=g(x)−1, g(x)=5x+2. Find f(4)−g(2) PLZ ANSWER FAST (you dont have to show work as long as the answer is right)

*asked on May 21, 2017* -
## Math

The denominator of a fraction exceeds the numerator by 7. If 3 is added to the numerator and 1 is subtracted from the denominator, the resulting fraction is equal to 4/5 . Find the original fraction. PLZ SHOW ALL WORK AND HURRY!!!

*asked on April 27, 2017* -
## Chemistry

A 17.7kg piece of zinc at 73 degrees celsius is placed in a container of water. The water has a mass of 23 kg and has a temperature of 13.4 degrees celsius before the zinc is added. what is the final temperature of water?

*asked on February 7, 2017* -
## Calculus

A car traveling 96ft/s begins a negative acceleration at a constant rate of 12ft/s^2. After how many seconds does the car come to a stop? How far will the car have traveled before stopping? Anti-derivatives are involved somewhere in the 2nd part I believe.

*asked on December 16, 2016* -
## Math

A model of A car has a scale of 3 cm : 2m the length of the actual hood of the car is 1m what is the length of the hood of the model

*asked on September 11, 2016* -
## Math

Consider an account with an APR of 8.5%. Find the APY with daily compounding.

*asked on August 30, 2016* -
## Math

A man 6 feet tall is standing 4 feet away from a 20 foot lamppost. How long is the lampposts shadow?

*asked on April 27, 2016* -
## Chemistry

The chemistry problem is "How would you make 500.0 mL of a 3.00 M HCl solution form a stock solution that is 6.00 M?" I have no clue how to even approach this problem.

*asked on April 12, 2016* -
## math

An executive traveling at 60 km hr would arrive 10 minutes early for an appointment, whereas at a speed of 45 km hr the executive would arrive 5 minutes early.how much time is there until the appointment?

*asked on March 23, 2016* -
## Math

Tim is mixing blue and white paint to make pale blue paint. He uses 2 quarts of blue for every 3 quarts white. How many quarts of each color would he need to make 35 quarts of pale blue? Is the answer 14 quarts of blue and 21 quarts of white?

*asked on February 29, 2016* -
## physics

A stone is thrown straight up from the ground with an initial speed of 26.6 m/s. At the same instant, a stone is dropped from a height of "h" (a variable) meters above ground level. The two stones strike the ground simultaneously. Find the height "h" (a

*asked on August 23, 2015* -
## health

Its important to choose foods that provide more A.carbohydrates B.potassium C.mercury D.cholesterol

*asked on April 11, 2015* -
## Physics

A block is released from rest at the top of an incline which makes a 30 degree angle with the horizontal. The incline is 12m long and it takes the block 25 seconds to reach the bottom. What is the coefficient of kinetic friction, µk, between the block and

*asked on February 25, 2015* -
## algebra

A veterinarian uses 300 feet of chain-link fencing to enclose a rectangular region and also to subdivide the region into two smaller rectangular regions by placing a fence parallel to one of the sides, (a) Write the width w as a function of the length l. w

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

The sum of the length l and the width w of a rectangular area is 220 meters. (a) Write w as a function of l. w = (b) Write the area A as a function of l. A = (c) Find the dimensions that produce the greatest area. l = w =

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

A piece of pottery is removed from a kiln and allowed to cool in a controlled environment. The temperature (in degrees Fahrenheit) of the pottery after it is removed from the kiln is shown for various times (in minutes) in the following table. Time(min)

*asked on October 23, 2014* -
## algebra

The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,

*asked on October 22, 2014* -
## algebra

x2 = −x + 1

*asked on September 14, 2014* -
## algebra

(z − 1)^2 + 4 = 0

*asked on September 14, 2014* -
## algebra

A company has determined that the profit, in dollars, it can expect from the manufacture and sale of tennis racquets is given by P = −0.01x^2 + 130x − 180,000. How many racquets should the company manufacture and sell to earn a profit of $174,900?

*asked on September 14, 2014* -
## math

solve v=1/3TTr2h; h

*asked on September 11, 2014* -
## math

A motorboat left a harbor and traveled to an island at an average rate of 11 knots. The average speed on the return trip was 10 knots. If the total trip took 4.2 hours, how far is the harbor from the island

*asked on September 11, 2014*