Ask a New Question
Questions and answers by
John
Questions (4,795)
The intensity of light varies inversely as the square of the distance from its source. If two searchlights are 600 meters apart
1 answer
1,216 views
A dessert recipe calls for2 1/2 cups of milk how. Many cups of milk are needed for 8 servings?
1 answer
905 views
An investment of 25,000 earns interest at an annual rate of 8.4% compounded continuosly
a. find the instantaneous rate of change
2 answers
5,212 views
Calculate deltaH for the reaction
NO (g) + O (g) ----> NO2(g) given following NO + O3 ----> NO2 + O2 deltaH=-198.9 kj O3 ---> 3/2
3 answers
1,226 views
A hoodlum throws a stone vertically downward with an initial speed v0 from the roof of a building, a height h above the ground.
0 answers
844 views
A hoodlum throws a stone vertically downward with an initial speed v0 from the roof of a building, a height h above the ground.
1 answer
993 views
I am trying to work this problem out. I know that the systematic counting principle is used. However, I cannot get the right
0 answers
594 views
I am trying to work this problem out. I know that the systematic counting principle is used. However, I cannot get the right
0 answers
627 views
find f'(x)
find the slope of the graph of f a x=2 and x=4 find the equations of the tangent lines at x=2 and x=4 and find the
2 answers
546 views
Four hours after the start of a 600 mile auto race, a driver's velocity is 150 miles per hour as she completes the 352nd lap on
1 answer
1,612 views
Find the limit
f(x) = -(x^2)/(x+3) a) lim f(x) x-3^- b) lim f(x) x-3^+ c) lim f(x) x-3 I know that a is dne because of the graph
4 answers
661 views
How do you find the total distance a particle travels on a given interval on a graph and net distance?
1 answer
471 views
Find the average rate of change in height of the orange from t=2 to t=5 (in feet per second)
The equation is h (t)=605+15t-4.9t^2
1 answer
841 views
A dilation scale factor 2 maps triangle RST to R'S'T'. The perimeter of triangle RST is 60. What is the perimeter of triangle
1 answer
1,299 views
A radar array consists of five vertical antennae arranged in a line, each emitting radio waves of frequency 120MHz in phase with
0 answers
591 views
The edge of a body-centered-cubic unit cell ( which contains two atoms per unit cell) of an element Y was found to be
0 answers
594 views
The edge of a body-centered -cubic unit cell (which contains two atoms per unit cell) of an element Y was found to be
1 answer
1,140 views
Students can buy tickets to a basketball game for $1.the addition for adults is $2 if 350 tickets were sold and the total money
1 answer
496 views
You are required to make 500 mL of a buffer solution with pH = 5.0 and a total acetate concentration of 0.1000 M. You are
0 answers
629 views
A box has a bottom with one edge 6 times as long as the other. If the box has no top and the volume is fixed at V, what
1 answer
899 views
A company establishes a sinking fund in order to have 100,000 for upgrading office equipments in 4 years. If the company makes
1 answer
604 views
In the triangle ABC, AC=2cm, AB=x cm and angle ABC=π/2 rad.
1. Given that angle BAC=ϴ rad, and that ϴ is a sufficiently small
2 answers
542 views
In the triangle ABC, AC=2cm, AB=x cm and angle ABC=π/2 rad.
1. Given that angle BAC=ϴ rad, and that ϴ is a sufficiently small
0 answers
493 views
a projectile is fired vertically upward from ground level with a velocity of 1600 ft/sec. If air resistance is neglected, find
1 answer
2,198 views
Kane Manufacturing has a division that produces two models of hibachis, model A and model B. To produce each model-A hibachi
0 answers
618 views
a great of effort, time, and money has been spent in the quest for the so-called perpetual-motion machine, which is defined as a
0 answers
811 views
the human body is only about 25 % efficient at converting input chemical energy to useful work. where does the rest of the input
0 answers
634 views
The average molar mass of a natural gas is 17.4g/mol consisting of CH4 and C2H6,what is the molar fraction of each gas?
1 answer
526 views
A chemist takes a 647 gram sample of this hydrate. She removes all the water possible from the sample and collects it. To this
2 answers
700 views
CH4 + 2O2 --> CO2 + 2H2O
a. How many grams of methane are needed to produce 1.5 X 10^-2 grams of carbon dioxide? b. How many
2 answers
1,289 views
CH4 + 2O2 --> CO2 + 2H2O
a. How many grams of methane are needed to produce 1.5 X 10^-2 grams of carbon dioxide? b. How many
0 answers
1,312 views
CH4 + 2O2 --> CO2 + 2H2O
a. How many grams of methane are needed to produce 1.5 X 10^-2 grams of carbon dioxide? b. How many
1 answer
1,187 views
Given 1 cc of Zinc and 1 cc of Cr What is the mass difference?
1 answer
344 views
A 45kg skier is sliding down a 37 degree ski slope starting from rest. She crossed the 25m in 5.0s. Ignoring air resistance,
0 answers
497 views
Each of the underlined premises can be taken as an unacceptable premise in an argument. In each case, identify the condition of
1 answer
803 views
you roll two fair dice, a green one and a red one?
(a) are the outcomes on the dice independent? (b)Find P(1 on green die and 2
2 answers
17,713 views
a parking lot has 66 parking spaces. If there are 16 more compact spaces than regular spaces. How many spaces are there for
2 answers
477 views
A bullet is fired with an initial speed of 200 m/s. If a target is 500ft away, at what angle should the rifle be raised in order
0 answers
719 views
A bullet is fired with an initial speed of 200 m/s. If a target is 500ft away, at what angle should the rifle be raised in order
0 answers
503 views
What is the 23rd term of the sequence 2,4,6,8,
1 answer
678 views
An automobile accelerates 1.24 m/s^2 over 6.00 s to reach freeway speed at the end of an entrance ramp. If the cars final speed
0 answers
458 views
The daily temperature is decreasing at a rate of 2 degrees Fahrenheit T represent the daily high temperature now right then
0 answers
696 views
Situation: The Production of Nitric Acid can be achieved by the following process:
Nitrogen monoxide gas(NO) + diatomic oxygen
2 answers
916 views
What is the geologic time scale and what are some thing scientists use it for (at least two things)?
Here's my answer could you
1 answer
940 views
Kenny reads 4/9 page in 3/4 minute
Kenny's unit rate is (what) page per minute
6 answers
3,601 views
Some have more than a hundred and some have none, its very colourful and you see it every morning
someone please tell me the
4 answers
441 views
i don't know, but it's hanging by its feet chirped flitter
What is the complete subject and complete predicates
10 answers
2,564 views
Help please?
1 answer
304 views
An automobile leaves the store, first going south at 88 km/h for 2 hours, and then turns on a road heading 20 degrees east of
1 answer
750 views
What are 3 types of zone?
1 answer
511 views
Where would I put parentheses to make this true?
7-3x4+6=27
0 answers
511 views
What is a bird speed flying at 12 m/s with a crosswind at 20 m/s
1 answer
444 views
If time is running out to finish the operational-planning process before the start of the new fiscal year, it should be cut
0 answers
572 views
What is the standard form of five and three hundred fifty-two thousandths?
1: 5.0032 2: 5,352,000 3: 5.352 4: 5.30052000 Is it
13 answers
4,768 views
Find the product and explain the process and reasoning
0.67 x 0.3 Please help I don't know how I could explain this :(
18 answers
5,066 views
When gasoline is burned in the cylinder of an engine, it creates a high pressure that pushes on the piston. If the pressure
1 answer
2,449 views
Briefly describe the relative quantities of kinetic, gravitational potential and mechanical energy as a stone is thrown in the
2 answers
1,471 views
Base = NaOH, 0.084 M drips 2ml at a time
Acid = Phenol, KA=1.3*10^-10 You have 28.0 ml in flask, and it is 0.06 M How would you
0 answers
432 views
An Unknown Compound (M=60.09 g/mol) is composed of Carbon, Hydrogen and Oxygen. Combustion of 0.255 g of the unknown compound
1 answer
1,247 views
2) The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation
1 answer
890 views
In a pet store there are 12 kittens for sale and 80 puppies. what is the ratioof the number of puppies to kittens ? write your
1 answer
499 views
Saccharin has a pKa of 2.32
It has a formula of HNC7H4SO3 If you dissolve 4.6 grams of saccharin in 478 ml of water, what is the
1 answer
642 views
Which word from the following list has meanings that fit both sentences?
I’ll start the fire after _______ a match. The workers
3 answers
1,329 views
A group of parts that work together is called.
A. Technology B. Process. C. System. D. Feedback I think its C?
15 answers
6,734 views
John earns $3 more than hugh. Leslie earns $2 less than twice Hugh. Together they earn $101. How much does Hugh earn?
3 answers
529 views
10. Use the accepted Ksp value of Calcium hydroxide to calculate the following:
a. What is the most calcium hydroxide that can be
1 answer
915 views
If it has been determined that the probability of an earthquake occurring on a certain day in a certain area is 1 over 20 , what
2 answers
927 views
If we toss four fair coins, what is the probability that we get more heads than tails?
HHHH TTTT HHTT TTHH HTHT THTH HHHT TTTH
5 answers
2,165 views
An automobile accelerates 1.77 m/s2 over 6.00 s to reach freeway speed at the end of the entrance ramp. If the car's final
1 answer
846 views
Maria's car averages 44 miles per gallon. Maria wants to determine how far she can drive based on the gallons of gas in her car.
2 answers
641 views
Naval Question:
MIDN Rabbit recently completed the NAVY PFA last Friday. During the course of CRUSHING the run and setting a new
0 answers
446 views
Your lab partner tells you that he has prepared a solution that contains 1.5 moles of NaOH in 1.5 L of aqueous solution, and
1 answer
1,667 views
Machine A was able to finish copying a set of document in 36 minutes. Machine B was brought in to work together with machine A
2 answers
629 views
Larry has 250.00 ml of water. The water currently holds the maximum amount of soluble Silver iodide. In a separate container,
1 answer
433 views
How many five-card hands chosen from a standard deck contain two hearts and three spades?
How do I solve this?
1 answer
636 views
How many five-card hands chosen from a standard deck contain two hearts and three spades?
1 answer
1,707 views
Write an expression for 25 less than double a number n
1 answer
414 views
How do you compare whole numbers through the millions?
2 answers
733 views
How does the US regulate the gathering/use of wood?
I am working on a school project, I am supposed to research, I looked
1 answer
611 views
Need some help with this question
65.9 - 32.4k/9.9 = 13.3k / stands for a fraction bar
2 answers
479 views
John hs 3 red markers and 5 blue markers. What is the probability that he picks a red marker, and then, without replacing it,
1 answer
1,097 views
If 0.896g of a gas occupies a 250mL flask at 20 degree celcius and 760 mmHg of pressure, what is the molar mass of the gas?
1 answer
1,265 views
The average age of Ali,Ben and Chandra is 10 years.Ali is 3 years older than Ben.Ben is 6 years older than Chandra.how old is
3 answers
538 views
Question: A Toyota car travelled at the rate of 70 km/hour leaves the house 2 hours after a Kia car has left and overtakes it in
1 answer
761 views
Question: A Toyota car travelled at the rate of 70 km/hour leaves the house 2 hours after a Kia car has left and overtakes it in
1 answer
719 views
Question: A Toyota car travelled at the rate of 70 km/hour leaves the house 2 hours after a Kia car has left and overtakes it in
2 answers
7,791 views
Question: A Toyota car travelled at the rate of 70 km/hour leaves the house 2 hours after a Kia car has left and overtakes it in
1 answer
681 views
A scientist adds 1.00 moles of phosphoric acid to a liter of water to make a solution.
How many moles of NaOH should be added to
1 answer
568 views
I'm doing a discussion board on Apple iPhones and how harsh the work conditions are for their employees. I'm trying to tie that
5 answers
601 views
The shorter edges of a 36 cm x 20 cm metalsheet are joined to form the vertical surfaces of a square base prism. What is the
3 answers
581 views
A(–4, 3), B(3, 7), C(0, –1) and D(–7, –5) are the vertices of a parallelogram on the Cartesian plane.
Determine the
4 answers
614 views
An astronaut constructs a pendulum with a length of 1 meter on a new planet. If the period is 3.9 second, what is the
1 answer
607 views
How many calories will it take to raise the temperature of a 41 g gold chain from 20°C to 100°C?
The answer is 102 calories.
5 answers
1,004 views
Two pipes that are open at the same time can
fill a pool in 12 hours. When only Pipe A is open, it can fill the pool 7 hours
1 answer
547 views
I've tried everything and can't come up with the correct answer. Help!
A liter of water has a mass of 1 kg and the mass of a
1 answer
510 views
Find the torque on the meter stick for each situation. Ignore the mass of the meter stick. At 1/2 meter there is a 1000g weight.
5 answers
736 views
If you could make changes with regard to our social class stratification system, what changes would you make and why?
1 answer
431 views
Sove the inequality x+2/4-x+1/3>1/2
2 answers
519 views
The difference of a number and its opposite is 28. Find the number
2 answers
1,966 views
Given that tanè = -5 and è is in the 2nd quadrant, compute exactly:
A. sin(è) B. cos(è) C. tan(2è)
3 answers
396 views
Pages
1
2
3
4
5
6
7
8
9
10