is 6 min= 36000 ms correct?
27,685 results

MATH 115
is 6 min= 36000 ms correct? 
math algebra am i correct
translate to an inequality my salary next year will be at least $36000 is it? x > $36000 

What mass of Al can be deposited by the passage of a constant current of 5.00 A through a Al(NO3)2 solution of 2.00 hours? My work: Q= I*t = 5 * 7200sec = 36000 36000/96458= .3732 .3732* 1/3 * (26.98*3) = 10.06g But this is wrong it's suppose to be 3.3.6g. why is that? 
Chemistry(Please check)
The units of a rate constant for zero, first, and second order reactions are given in the textbook. If the time units are minutes, what would you expect the units to be for a third order reaction? 1) 1/min^3 2) mol^2/L^2min 3) L/molmin^2 4) L^2/mol^2min 5) L^2/mol^2min^2 I... 
Statistics
The mean salary of 8 employees is $36000 and the median is $32000. This highestpaid employee gets a $2000 raise. What is the new mean salary of the 8 employees? median doesn't change. I just can't figure out the mean. I tried (36000+8000/8) but it wasn't right. 
math
amos is using a computer program to graph the function N(p)=73p2818. He wants to see the intercepts. Which minimum values should he use to set up the viewing window? A) X min:80, Y min:2500< B) X min:50, Y min:3000 C) X min:2500. Y min: 80 D) X min:3000, Y min:50 
math
289 min = 4 hr and 49 min 213 min = 3 hr and 33 min 345 min = 5 hr and 45 min 197 min = 3 hr and 17 min I have to change these minutes on the left to hours and minutes. could you check if I have them correctly. Thank you for your help 
chemistry
A particular radioactive substance has a halflife of 4 minutes. How long will it take for 250 g of this radioactive material to decay to less than 0.1g? 24 min 36 min 40 min 48 min 72 min I got 32 min but that not one of the choices. Please help 
Physics
From t = 0 to t = 5.00 min, a man stands still, and from t = 5.00 min to t = 10.0 min, he walks briskly in a straight line at a constant speed of 2.3 m/s. (a) What is his average velocity vavg in the interval 2.000 min to 7.90 min? I found this to be 1.15 m/s (b) What is his ... 
MATH!!
TO be on the 1km race team, Celia must have a mean time less than 5 min 50 secs in 6 tryout games. Her times in 5 races are: 6 min 2 s, 5 min 53 s, 5 min 53 s, 5 min 45 s, 6 min, and 5 min 34 s. WHat itme should Celia aim for in her sixth race to make the team. Is this ... 
accountung
a fixed mo fee of 22.00 up to 510 min. then .05 per min thereafter if i use less than 510 min i still pay 22.00 per month based on 100 min/ 240 min. 540 min. 
Math
Please help me solve these problem i have no idea how to do this. 720m/d= ____ m/min 1.5gal/min=______ qt/h 32yd/min=_____in./s 0.85km/s=______m/min 80mi/h=_______ft/s 20fl oz/min=_______qt/day 
Chemistry
IF 80mg of a radioactive element decays to 10mg in 30 minutes, the halflife of this element is a.10 min b.20 min c.30 min d.40 min the answer is a.10 min but i would like to know why, please help. 
GEOMETRY/ALGEBRA
A balloon, with a final volume of 40 cm3, took 4 min to fill. At what rate was the balloon filled? Choose exactly two answers that are correct. A. B. 40 cm3 = 4 min • r C. 40 cm3 • r = 4 min D. r – 4 h = 14 in. 
Math
Convert 240sec= min. Is this correct I got 4 min 
Food engineering/biology
Hey Can anyone help me out with this problem. For part a i understand i plot microbial numbers against time on semi log paper to determine D value for the two temperatures. But i'm unsure how to do part b. Alicyclobacillus acidoterrestris is a quite hat resistant microorganism... 
physical
From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval 1.00 min to 4.30 min? ... 
physical
From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval 1.00 min to 4.30 min? ... 
physics
Sally travels by car from one city to another. She drives for 24.0 min at 63.0 km/h, 36.0 min at 45.0 km/h, and 44.0 min at 49.0 km/h, and she spends 13.0 min eating lunch and buying gas. 
physics
Sally travels by car from one city to another. She drives for 29.0 min at 63.0 km/h, 37.0 min at 32.0 km/h, and 14.0 min at 26.0 km/h, and she spends 14.0 min eating lunch and buying gas. 
Chemistry
An enzyme has velocities of 0.11 nmol/min at a substrate concentration of 1 μM, 0.34 nmol/min at a substrate concentration of 5 μM, and 0.45 nmol/min at a substrate concentration of 10 μM. What is the Vmax for the enzyme if the KM is 5 × 10–6 M? A. 0.22 nmol/... 
Science
Approximately how long does an earhquake Pwave take to travel the first 6500 kilometers after the earthquake occurs? a. 6.5 min b. 8.0 min c. 10.0 min d. 18.5 min 
physics
Sally travels by car from one city to another. She drives for 30.0 min at 80 km/h, 12 min at 105 km/h, and 45 min at 40 km/h. She spends 13.0 min eating lunch and buying gas. what the average speed for the trip? 
accounting
paying a fixed monthly fee of $15.00 up yo 240 min then .08 per min if i use less than 240 min still paying 15.00 per mo. based on 100 min 240 min 540 min 
Math 1 question plz help asap
Write an equivalent time using only the smallest unit. 3hrs 14 min A. 74 min B. 166 min C. 180 min D. 194 min I would give u an answer but I don't understand what the question means im asking if you could help me plz 
Chemistry
Calculate the average disappearance of A between t=0 min and t=10 min in units of M/s. 0 min there are .065 moles of A 10 min there are .051 moles of A 20 min there are .042 moles of A 30 min there are .036 moles of A 40 min there are .031 moles of A The total volume is 100.0 ... 
Trigonometry  LONESTAR
The figure below is a model of a Ferris wheel. The diameter of the wheel is 191 feet, and one complete revolution takes 15 minutes. The bottom of the wheel is 11 feet above the ground. Complete the table below. (Round your answers to two decimal places.) t H 0 min 11 ft 1.875 ... 
Physics
Sally travels by car from one city to another. She drives for 25.0 min at 71.0 km/h, 45.0 min at 45.0 km/h, and 43.0 min at 11.0 km/h, and she spends 10.0 min eating lunch and buying gas. What is the average speed for the trip?what is the total distance traveled? 
Physics
Sally travels by car from one city to another. She drives for 28.0 min at 63.0 km/h, 50.0 min at 40.0 km/h, and 50.0 min at 43.0 km/h, and she spends 13.0 min eating lunch and buying gas. Find the trip's average speed and total distance traveled... 
Physics
Sally travels by car from one city to another. She drives for 36.5 min at 90.7 km/h, 13.3 min at 120 km/h, and 57.4 min at 45.6 km/h, and she spends 16.3 min eating lunch and buying gas. Find the total distance traveled. Answer in units of km 
math
after school chase spends 20 min reading 30 min practicing the piano 15 min cleaning his room, and 40 min doing his homework, chase is busy for 105 min what fraction of the time does he spend cleaning his room? 
Physics
Could someone please review my answers and tell me if I am on the right track? Thank you! A student drove to the university from her home and noted that the odometer reading of her car increased by 12.0 km. The trip took 18.0 min. (a) What was her average speed? (b) If the ... 
physics
A motorist drives south at 26.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.40 min trip, find the following values. 
math  calculus help!
An inverted conical tank (with vertex down) is 14 feet across the top and 24 feet deep. If water is flowing in at a rate of 12 ft3/min, find the rate of change of the depth of the water when the water is 10 feet deep. 0.229 ft/min 0.449 ft/min 0.669 ft/min 0.778 ft/min 44.90 ... 
Accounting
variable cost, fixed cost, total costif .10 per min long dist calling based on 100 min, 240 min, and 540 min 
math
3 h 20 min 4 h 25 min + 5 h 35 min=13 hrs 20 min 9 lb 15 oz  5 lb 8 oz=4 lbs 7 oz Mark uses 1 pt 9 fl oz and then 2 pt 10 fl oz from a container of film developer that holds 3 qt. How much of the developer remains?=1 pt 13 oz 
math
3 h 20 min 4 h 25 min + 5 h 35 min=13 hrs 20 min 9 lb 15 oz  5 lb 8 oz=4 lbs 7 oz Mark uses 1 pt 9 fl oz and then 2 pt 10 fl oz from a container of film developer that holds 3 qt. How much of the developer remains?=1 pt 13 oz 
Chemistry
Calculate the rate constant, k, for the reaction 2H2O2(l) > 2H2O(l) + O2(g) Using the rate,  0.02 mol/L.min H2O2, and the initial concentration, [H2O2] = 0.5 mol/L Question 7 options:  25/min 25/min  0.04/min 0.04/min 
physics
A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 40.0 min at 85.0 km/h, 12.0 min at 95 km/h, and 35.0 min at 30.0 km/h, and spends 35.0 min eating lunch and buying gas. Determine the average speed for the ... 
Math
Petra has 20 min.to finish pumping the water out of the pool. There are 1850 gallons of water left in the pool. Will Petra be finished in 20 min.? Why or why not? I say no because I multiplied 1850 by 20 and got 37,000. She want be finished in 20 min. Is this correct 
physics
A person travels by car from one city to another. She drives for 21.8 min at 67.1 km/h, 13.1 min at 84.6 km/h, 51.4 min at 33.5 km/h, and spends 11.5 min along the way eating lunch and buying gas. Determine the distance between the cities along this route. 
Calculus / Rates of Change
A jet flying due north at 16km/min passes 2 km directly above a plan flying due east at 8km/min. How quickly are they separating when the plane is 32 km from the crossover? What I have done (I am not sure if it is correct.): r^2=x^2+y^2+z^2 Since the plane has gone 32 meters, ... 
math
A test question I just had. Not sure of the correct answer. Which situations have equal outcomes? You can only have one answer. A. I can't remember B. You watch a movie with 20 min. preview and 99 min. movie vs. 19 min. preview and 100 min. movie. C. A person 5'1 compared to 6... 
Physics
Sally travels by car from one city to another. She drives for 40.2 min at 80.0 km/h, 12.0 min at 105 km/h, and 45.0 min at 40.0 km/h. She spends 13.7 min eating lunch and buying gas. (a) Determine the total distance traveled in km. (b) Determine the average speed for the trip ... 
Chemistry
Gallium65, a radioactive isotope of gallium, decays by first orderkinetics. The halflife of this isotope is 15.2 min. How long would it take for 7/8 of a sample of this isotope to decay? 15.2 min 30.4 min 45.6 min 48.0 min I'm not sure how to do this. I initially tried by ... 
math
After school, Chase spends 20 min reading, 30 min practicing the piano, 15 min cleaning his room, and 40 min doing his homework. Chase is busy for 105 min.What fraction of the time does he spends cleaning his room? 
biology lab
rate of photosyhthesis in presence of light intensity & CO2. ~A : sodium bicarbonate in darkness pH b4 xperiment9 " @ 20 min 8 " 60 min 8 ~B: sodium bicarbonate in room light pH b4 xperiment9 " @ 20 min9 " 60 min8 ~C: sodium bicarbonate 20 cm from light source pH b4 ... 
Calculus, antiderivatives
A student accelerates from rest at a rate of 3 miles/min^2. How far will the car have traveled at the moment it reaches a velocity of 65 miles/60 min? a(t) = 3 miles/min^2 so v(t) = 3t + k miles/min but when t=0, v=0 so k=0 then v(t)=3t d(t) = 3/2 t^2 + c but when t=0 d, the ... 
AP CALC. AB
Two sides of a triangle have lengths 13 m and 17 m. The angle between them is increasing at a rate of 5 degrees/ min. How fast is the length of the third side increasing when the angle between the sides of fixed length is 60 degrees/min? Round the result to the nearest ... 
Math Need Help!!
Which Number Is A Perfect Square? A. 32~~~~ B. 144 C. 1000 D. 36000 
Physics
A nurse counts 72 heartbeats in 1 min. Show that the frequency and period of the heartbeats are 1.2 Hz and 0.83 s, respectively. I responded as: frequency=72hb/min*1min/60sec Is this correct? Thank you 
math
What is the conversion factor sequence for units from ft./sec. to km./hr.? Is (ft/sec) x (sec/min) x (min/hr) x (m/ft) x (km/m) correct? 
math just need someone to check and make sure this
The Office Jet printer can copy Janet's dissertation in 10 min. The Laser Jet printer can copy the same documents in 8 min. If the two machines work together, how long would they take to copy the dissertation? 10*8=80 80/18= 4.4 so it would take 4 min. is this correct? 
English expression
How many are there in Mina's family? There are five in her family: her mother, her father, her older brother,Minsu, her younger brother Minho and she/her.  Do I have to use 'she' or 'her' at the end of the second sentence? Ae the expressions ... 
statistics
Mean time 79 min Standard deviation 8 min what is the probability of doing it in 60 min or less 
Algebra
What are the minimum, first quartile, median, third quartile, & maximum of the data set? 45, 76, 12, 39, 87, 65, 23, 32 A) min: 12 max: 87 first: 70.5 third: 27.5 med: 42 B) min: 12 max: 87 first: 27.5 third: 70.5 med: 42 C)min: 12 max: 87 first: 27.5 third: 76 med: 45 D) min... 
physics
a train starts from rest and accelerates uniformly at 100m/min^2 for 10 min.then it maintains a constant velocity for remaining 20 min.brakes are applied and train uniformly retards and comes to rest in next 5 min. a)the maximum velocity reached b)the retardation in last 5 min... 
physics
a train starts from rest and accelerates uniformly at 100m/min^2 for 10 min.then it maintains a constant velocity for remaining 20 min.brakes are applied and train uniformly retards and comes to rest in next 5 min. a)the maximum velocity reached b)the retardation in last 5 min... 
physics
a train starts from rest and accelerates uniformly at 100m/min^2 for 10 min.then it maintains a constant velocity for remaining 20 min.brakes are applied and train uniformly retards and comes to rest in next 5 min. a)the maximum velocity reached b)the retardation in last 5 min... 
Chemistry
The electrolysis (decomposition) of water produces hydrogen gas at the rate of 30.0 mL/min. A) Write a balanced chemical equation for this reaction and include phase designations. 2H2O(aq)> 4H2(g)O2(g) Is whatever I've done above correct? B) What volume of hydrogen gas ... 
Biology  Uncertainty
I'm doing a bio lab, and I have collected data on heart rate measured in beats/15 secs with an uncertainty of +/ 1 beat/sec. To get heart rate per minute, I multiplied my data by 4, making my uncertainty +/ 4 beats/min. However, what I need to do now is some subtraction, but... 
Biology  Uncertainty (Repost)
I'm doing a bio lab, and I have collected data on heart rate measured in beats/15 secs with an uncertainty of +/ 1 beat/sec. To get heart rate per minute, I multiplied my data by 4, making my uncertainty +/ 4 beats/min. However, what I need to do now is some subtraction, but... 
Chemistry
Use the data in the table to determine how long it will take for half of the original amount of SO2Cl2 to decompose at the average reaction rate. Experimental Data for SO2Cl2(g) → SO2(g) + Cl2(g) Time (min) [SO2Cl2](M) [SO2](M) [Cl2](M) 0.0 1.00 0.00 0.00 100.0 0.87 0.13... 
Science/Anatomy
I have the formula to the problem but am unsure of my answer.. Problem: Calculate the cardiac output if heart rate (HR) is 90 beats per minute, stroke volume (SV) is 110 ml/beat, end diastolic volume (EDV) is 140 ml, and end systolic volume (ESV) is 30 ml. select corect answer... 
collegeStats
A certain geyser was determined to have eruptions with a Mean duration of 3.31 min and a standard deviation of 1.04 min. A sample of n=43 eruptions were recorded. Using Chebychev's Theorem, how many of the eruptions lasted between 1.23 min and 5.39 min. there both 3 sd's away ... 
chemistry
a car covers a distance of 200 mile in 3 hours. How many kilometers will it travel in 25.0 minutes? first, convert the 200 miles to km. I get about 320 km. Then, convert the hours to min....I get about 180 min. so you know speed in km/min....divide the distance in km by the ... 
Math
A pump can pump 450 gallons from a pool in 5 min. What is the unit rate of the pump per min.? I divided 450 by 5 and got 90 Is that correct? 
physics
A motorist drives south at 26.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.40 min trip, find the following values.find displacement, average speed, and average velocity 
math correct or not correct
1.5 gal/min = __ qt/hr 360 qt/hr? 
math correct or not correct
1.5 gal/min = __ qt/hr 360 qt/hr? 
Math
A turtle crawled 21 meters in 12 minutes. How long did it take her to crawl 14 meters if she crawled at the same rate the whole time???? 21÷12= 1.75 meters per min so 14÷ by 1.75 is 8 min correct. Or am I way off if so please explain 
MAth
If 1 gallon (gal) of water weighs 8.34 pounds (lb), how much does 3.75 gal weigh? A) 15 lb B) 31.275 lb C) 30.125 lb D) 12.09 lb i think it is D 50. Determine the maximum and minimum values of the following set of numbers. A) Max: 26 / 9 min:  36 / 7 C) Max: 3; min: 5 B) Max... 
Calculus
I am not too sure if I did this question correct. Thanks in advanced! Data table: Time after Consumption (min): 30 60 90 120 150 180 Amount of Codeine in Blood (mg): 27.0 23.5 21.2 18.7 16.6 14.5 1.) create a scatter plot of the data and determine a suitable equation to model ... 
Calculus
I am not too sure if I did this question correct. Thanks in advanced! Data table: Time after Consumption (min): 30 60 90 120 150 180 Amount of Codeine in Blood (mg): 27.0 23.5 21.2 18.7 16.6 14.5 1.) create a scatter plot of the data and determine a suitable equation to model ... 
Math
4018 PTS Billymkhoi HIGH SCHOOL MATHEMATICS 10+5 pts At the instant that a cake is removed from the oven, the temperature of the cake is 350°F. After 10 minutes, the cake's temperature is 200°F. If the temperature of the room is 70°F, how much longer will it take for the ... 
math
can you help math question units rates find unit rate for each situation read 50 pages in 1 hr 25 min i got : 50 divide by ttl 85 min and got 0.588 = .59 hike 5 mile in 2hr 10 min i got: 130 min ttl divide 5mile is got 26 mile per min are these right? 
MathPlease Help
A traverse with five sides has interior angles with the following measures: 121deg 45 min: 118 deg 25 min; 87 deg 32 min; 98deg 34min, and 113 deg 54 min. Does the traverse close? If not, determne the error in the traverse. 
physics
A figure skater is warming up on the rink. She does a lap of a 100m rink. She completes the laps in 3 minutes. What was her speed? Answer a. 33.3 m/min b. 300 m/min c. 66.7 m/min my answer b.300 m/min ????? 
Math  exponential
How many inflection points does f(x) = xe^(x^(2)) have?  is there one inflection point? and does this apply to all functions? How many relative max or min does the function, f(x) = xe^(x^2) have?  it only has 1 relative min, am i correct? 
English expression
Who is Mina's older brother? He is Minsu.Minsu is. Who is Mina's new friend? He is Mike. Mike is. What is Mina's pet? A dog is. It is a doge. She is a dog.  Are all the answers to the questions all correct? Which ones are commonly used? 
Math
Inez stretched for 19 mins before jogging on a trail. It took her 5 minutes to run each lap around the trail. Write an equation to represent the relationship between the number of laps, l, and time, t. 1 lap= 15 min 2 lap = 30 min 3 lap=45 min 4 lap = 60 min 
Chemistry
For the reaction ,2 O3 —> 3 O2,the reaction rate , delta[O2]/delta t , = 3.0M/min. What is the reaction rate, delta[O3]/delta t, for the same time period? A) 3.0 M/min B) –3.0M/min C) 2.0 M/min D) –2.0M/min E) .67M/min 
Chemistry
For the reaction ,2 O3 —> 3 O2,the reaction rate , delta[O2]/delta t , = 3.0M/min. What is the reaction rate, delta[O3]/delta t, for the same time period? A) 3.0 M/min B) –3.0M/min C) 2.0 M/min D) –2.0M/min E) .67M/min 
physics
A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 40.0 min at 85.0 km/h, 12.0 min at 95 km/h, and 35.0 min at 30.0 km/h, and spends 35.0 min eating lunch and buying gas. Determine the average speed for the ... 
TOBOBPURSLEY
I thought phase shift was theta over omega correct??? and the period equals two pi over omega 40 min = (2pi)/omega omgea = pi/20 min phase shift = theta over omega phase sift = (20?)/pi min now you said phase shift was (35 pi)/40 I do not see why I appologize i made a spelling... 
physics
A person travels by car from one city to another with diﬀerent constant speeds between pair of cities. She drives for 31.5 min at 89.6 km/h, 11.8 min at 101.8 km/h, and 58.5 min at 36.4 km/h, and spends 24.8 min eating lunch and buying gas. Find the distance between the... 
Chemistry
In the reaction 2HgO(s) > 2Hg(l) + O2(g) we measure the evolution of gas to determine the rate of reaction. At the beginning of the reaction (at 0 minutes), 0.02 L of O2 is present. After 20 minutes the volume of O2 is 0.36 L. What is the rate of reaction? Question 4 ... 
PHYSICS
The average velocity of a plane was 600 km/h [N]. How long did it take the plane to travel 120 km? A. 0.2 min B. 5 min C. 12 min D. 5.0 h 
math
can someone please help me, Rob is going to college in Oklahoma which is 680 miles from their his home in Tennessee. He can travel on state highways at 55mph or on the interstate at 70mph. Approximately, how much longer will his trip be if he takes state highways? A. 5 hrs 3 ... 
Chemistry/lab math
I think I have these figured out correctly but I'm not sure if I might have converted in the wrong direction; The rate of the enzyme activity of a certain reaction is a. 0.0027 μmol/min/mL. Express it as __ μmol/min/L My answer: 2.7 μmol/min/L b. 15,000 μ... 
geometry
8. A conveyor belt carries supplies from the first floor to the second floor, which is 27 feet higher. The belt makes a 60° angle with the ground. How far do the supplies travel from one end of the conveyor belt to the other? Round your answer to the nearest foot. If the belt... 
Anatomy
I have the formula to problem but can not come up with any of the answers. Problem: Calculate the cardiac output if heart rate (HR) is 90 beats per minute, stroke volume (SV) is 110 ml/beat, end diastolic volume (EDV) is 140 ml, and end systolic volume (ESV) is 30 ml. select ... 
math
Mario plays basketball for 30min on Monday,60 min on Tuesday, 90min on Wednesday, 120 min on Thursday,150 min each on Friday and Saturday, and rests on Sunday. How many hours does he spend playing basketball in 1 week? 
fizik
i really need the answer quickly 1. Linda travels by car around one city to another with different constant speeds between pairs of cities. She travels for 35 min at 84 km/h, 17 min at 105 km/h and 50 min at 42 km/h and spends 25.0 min eating lunch and buying gas a) Determine ... 
calc
1)Convert 1/20 of a circle to both degrees and radians. All I have is 9/180 is what I come up with. 2) what fraction of a circle does 3pi/4 represent? Is 1/4 correct? 3) a ferries wheel has cars which move at 1.5mph. If the diameter of the wheel is 600 ft, how long will it ... 
physics
A train at a constant 43.0 km/h moves east for 20.0 min, then in a direction 54.0° east of due north for 25.0 min, and then west for 30.0 min. What are the (a) magnitude and (b) angle (relative to east) of its average velocity during this trip? 
Statistics
uppose that a category of world class runners are known to run a marathon (26 miles) in an average of 143 minutes with a standard deviation of 12 minutes. Consider 49 of the races. Let X = the average times of the 49 races. (a) Find the median of the average running times. ( ... 
Physics
Two disks are mounted (like a merrygoround) on lowfriction bearings on the same axle and can be brought together so that they couple and rotate as one unit. The first disk, with rotational inertia 2.58 kg·m2 about its central axis, is set spinning counterclockwise (which ... 
physics
Two disks are mounted (like a merrygoround) on lowfriction bearings on the same axle and can be brought together so that they couple and rotate as one unit. The first disk, with rotational inertia 1.46 kg·m2 about its central axis, is set spinning counterclockwise (which ... 
math
toilet .05 min to fill 1.5 gal to fill w mach 5.3 min 1.7 gal tub 6.3 min 20 gal sink 1.4 min 5.0 gal which has the fastest fill rate