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Questions (515)
The time that it takes a randomly selected job applicant to perform a certain task has a distribution that can be approximated
2 answers
4,664 views
Solve for a.
a/a+5 - 2 = 3a/a+5
4 answers
312 views
How to write this conic section in standard form?
3y^2 = 108 - 12x^2
2 answers
621 views
How to write this conic section in standard form?
3y^2 = 108 - 12x^2
2 answers
402 views
Determine how many milliliters of 0.370 M HClO4 will be required to neutralize 58.99 g Ca(OH)2 according to the reaction:
2HC1O4+
1 answer
499 views
Determine how many milliliters of 0.370 M HClO4 will be required to neutralize 58.99 g Ca(OH)2 according to the reaction:
2HC1O4+
0 answers
492 views
Calculate the [H+] for: black coffee with a pH of 6.9 (Enter your answer as follows: 1.0E-2 for 0.010)
1 answer
576 views
How can you remember facts about the revolutionary war
1 answer
928 views
How many kilojoules of energy are needed to convert 104 g of ice at -14.6 to water at 25.8°C? (The specific heat of ice at
0 answers
586 views
The specific heat of zinc is 0.096 cal/(g °C). Determine the energy required to raise the temperature of 26.1 g of zinc from
0 answers
720 views
How many joules of energy are needed to change 275 g of water from 15°C to steam at 100.°C?
1 answer
1,023 views
What is the hydroxide ion concentration of a 0.370M oxalic acid, H2C2O4, solution? For oxalic acid, Ka1=5.6x10^-2 and
1 answer
638 views
What is the concentration of CO3^-2 in a 0.028M solution of carbonic acid, H2CO3? For carbonic acid, Ka1=4.2x10^-7 and
4 answers
825 views
A bottle containing 4 kgof water at a temperature of 15°Cis placed in a refrigerator where the temperature is kept at 2°C.How
1 answer
631 views
Let Pk, Pna and Pcl be permeabilities of squid axon membrane for potassium, sodium and chloride, respectively.
During the rest,
2 answers
574 views
Cl equil-v:
Only chloride may cross a membrane separating two compartments. At a temperature of 26∘C, the concentrations of
0 answers
448 views
K equil-v:
Only potassium may cross a membrane separating two compartments. At a temperature of 30∘C, the concentrations of
0 answers
432 views
Na equil-v:
Only sodium may cross a membrane separating two compartments. At a temperature of 28∘C, the concentrations of
0 answers
488 views
At a temperature of 10∘C, the concentrations of ions are:
IonIntracellularExtracellular Na61485 K28010 Cl51485 The
0 answers
394 views
Assume that frog muscle cell membrane is permeable to Na and K only. The membrane permeabilities for Na and K are Pna and Pk
0 answers
649 views
Ryan estimates that he uses 2/3 cup of syrup each time he eats pancakes. How many times will he be able to eat pancakes without
5 answers
988 views
A mountain-climbing expedition establishes two intermediate camps, labeled A and B in the drawing, above the base camp. What is
0 answers
1,205 views
how to prepare a 250 mL solution of .15 M K2SO4 with a volumetric flask
1 answer
1,545 views
Need thesis stAtement for persuasive research paper on cs lewis
1 answer
518 views
Car A is traveling at 18 m/s and car B at 25 m/s. Car A is 300m behind car B when the driver of Car A accelerates his car with
0 answers
980 views
28. Which answer best describes how some enslaved African Americans expressed their emotions? (4 points)
They didn’t believe in
5 answers
595 views
A monatomic ideal gas expands from 1.00m^3 to 2.50m^3 st a constant pressure of 2.00x10^5 Pa. Find the change in the internal
1 answer
2,944 views
An engine does 15kJ of work while rejecting 37 kJ to the cold reservoir. What is the efficiency of the engine?
1 answer
1,126 views
what is 14.76 rounded to the nearest hundredth?
2 answers
770 views
At the beginning of a new school term, a student moves a box of books by attaching a rope to the box and pulling with a force of
1 answer
919 views
If the theoretical yield of a reaction is 18.6 grams & 7.6 grams were collected the.experiment, what is the percent yield
0 answers
408 views
What is on batteries in the following sentence:
These clocks often run on batteries. A. Main verb B. Helping verb C. Both D.
3 answers
1,156 views
What is can find in the following sentence:
You can find properties of science in a basic clock. A. Main verb B. Helping verb C.
1 answer
1,023 views
Consider the Earth and a cloud layer 600 m above the planet to be the plates of a parallel-plate capacitor.
(a) If the cloud
0 answers
564 views
Answer the following
____ stories seemed unbelievable. A. Survivors B. Survivor's C. Survivors' D. Survivors's
5 answers
480 views
What is the answer to the following:
Money might be sewn into ___ coat A. women's B. woman's C. womens' D. womans'
0 answers
494 views
What is the answer to the following:
Many ____ stomachs were often empty. A refugees B refugee's C refugees' D refugees's
1 answer
865 views
A 350 N child is in a swing that is attached to a 7.50 m long rope. find the gravitational potential energy associated with the
0 answers
951 views
What is a bipolar racial classification system?
Thanks!
0 answers
393 views
Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen:
4KNO3(s)--> 2K2O(s) + 2N2(g)
1 answer
893 views
Calculate the enthalpy of the reaction
2B2H6 + 6O2=2B2O3 +6H2O given the following pertinent information: A. B2O3(s) + 2H2) )g) =
0 answers
903 views
Do employers have the right to screen employees or potential employees to learn if they are smokers, have chronic diseases, or
1 answer
423 views
Attn: Dr. Bob
Thank you so much for your help on this--greatly appreciated!
1 answer
431 views
What is the volume occupied by 12.3 g or argon gas at a pressure of 1.17 atm and a temperature of 455K?
So...Dr. Bob... PV=nRT
1 answer
497 views
What is the volume occupied by 12.3 g or argon gas at a pressure of 1.17 atm and a temperature of 455K?
Unable to understand
1 answer
451 views
What is the volume occupied by 12.3 g of argon gas at a pressure of 1.17 atm and a temperature of 455K?
Would formula be V=T/P?
1 answer
543 views
What is the volume occupied by 12.3 g or argon gas at a pressure of 1.17 atm and a temperature of 455K?
1 answer
404 views
A gas sample has an initial volume of 4.5 liters at a pressure of 731 mmHg. If the volume is increased to 8.9 liters, what is
4 answers
780 views
1. What if the size for each sample were increased to 20? Would a sample mean of 115 or more be considered unusual? Why or why
0 answers
597 views
Reno, Nevada and Salt Lake City, Utah are about 400 miles apart today. Yet 15 million years ago they were only 250 miles apart.
2 answers
1,295 views
A geologist finds that a Moon rock whose mass is 9.97 kg has an apparent mass of 6.40 kg when submerged in water. What is the
2 answers
7,238 views
Suppose that the average annual salary for city employees is $36,000 with an SD of $12,000. The city council decides to give
1 answer
620 views
Eight people in a room have an average height of 66 inches. A ninth person enters the room. How tall would he have to be to
1 answer
487 views
Calculate the total force of the atmosphere acting on the top of a table that measures 1.9 m by 2.3 m.
1 answer
640 views
If 215.0 mL of water are added to a 237 mL sample of a 1.702 M dextrose solution, what is the new molarity of dextrose in the
1 answer
436 views
A person holds a 1.42N baseball in his hand, a distance of 34.0cm from the elbow joint, as shown in the figure . The biceps,
1 answer
1,767 views
lim x-->infinity (3x^2+4x-5)/(6x^2+3x+1)
1 answer
431 views
(3.) The plane 2x + 3y – 4z = 5 intersects the x-axis at (a,0,0), the y-axis at (0,b,0), and the z-axis at (0,0,c). The value
1 answer
482 views
What is the truth value of the sentence "P v ~ P"?
True False Cannot be determined Not a sentence My answer is false, Is this
0 answers
492 views
Two students are on a balcony 18.3 m above the street. One student throws a ball (ball 1) vertically downward at 12.2 m/s; at
1 answer
737 views
Two students are on a balcony 18.3 m above the street. One student throws a ball (ball 1) vertically downward at 12.2 m/s; at
2 answers
824 views
a
how to solve the problem when on 100 point examination with mean 60, SD 10, if there are 5% A, 5% F, 15% B, 15% D, and 60% C,
1 answer
405 views
(u+4)cubed + 80=0
0 answers
303 views
Axel Corporation acquires 100% of the stock of Wheal Company on December 31, Year 4. The
following information pertains to Wheal
0 answers
501 views
Search: The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.029 kg and is moving
3 answers
765 views
Search: The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.029 kg and is moving
0 answers
606 views
Consider 125 mL of 0.110 M MgCl2 solution.
a. How many moles of MgCl2 are contained in 125 mL of 0.0110 M MgCl2? b. What is the
1 answer
801 views
A sample gas has a volume of 200 cm^3 at 25 degrees celsius and 700 mmHg. If the pressure is reduced to 280 mmHg, what volume
1 answer
686 views
I have to find the verbs in the preterite and the imperfect but I'm getting them marked wrong.
1. Mi amiga Anita siempre tenía
1 answer
1,599 views
Michael invested his savings in two investment funds. The amount he invested in Fund A was $2,000 less than the amount he
0 answers
1,254 views
Carbon atoms have 6 protons in their nucleus.
In nm, at what distance from a carbon nucleus is the electric potential 3.1 V? I'm
0 answers
466 views
One morning, 8/9 of the customers at the diner ordered coffee. Regular coffee was ordered three times as much as flavored
3 answers
528 views
CAN 1+1+1=3 BE WRITTEN AS A MULTIPLICATION SENTENCE
1 answer
417 views
from the intervals 0 less than or equal to theda less than 2 pie, what is cot theda of 2
1 answer
1,042 views
Find the slope and y-intercept of the line in the given equation.
y=4/9x -20
1 answer
353 views
if b is between a and c find the value of x and the measure of bc (ab=3x,bc=5x,ac=8)
1 answer
352 views
A kettle heats up 1.5L of water from 22 degreesC to 90 degreesC in 4 min. What power did the water receive?
1 answer
483 views
Simplify the ratio of factorials.
(n+2)!/(n-1)!
1 answer
702 views
A Norman window has the shape of a rectangle surmounted by a semicircle as in the figure below. If the perimeter of the window
2 answers
1,189 views
Determine the longest wavelength of light required to remove an electron from a sample of potassium metal, if the binding energy
2 answers
4,284 views
what is the neural basis of schizophrenia?
1 answer
922 views
What are the four methods for studying the cerebral lateralization? I have three I just don't know what the fourth is.
1. The
1 answer
521 views
Post a 200- to 300-word response to the following: Describe the stages of sleep. In which stage do we dream? What are the five
1 answer
561 views
Which of the following mixtures will result in the formation of a buffer solution when dissolved in 1.00 L of water?
i) 0.50 mol
2 answers
853 views
How many moles of water can be obtained from 19.7 g of CoCl2·6H2O?
1 answer
461 views
What is the heat capacity of 190g of liquid water? I came up with 794.96 but it says my sig figs are wrong? Help?????
2 answers
1,513 views
Comparisons of amino acid sequences from different organisms often shed light on the evolutionary divergence of related species.
1 answer
1,657 views
Explain how the potential energy of carbon and its ability to tetramerize lead to the development of macromolecules
1 answer
488 views
Retrograde motion describe the
A backward motion of the stars relative to Earth B uniform circular motion exhibited by the
2 answers
684 views
Solve: csc x = 2, 0¡Üx<2¦Ð
1 answer
419 views
Find the slope of the tangent line to the graph of the function at the given point.
g(x) = 3 x + 4, (-4, 1)
1 answer
426 views
The thermite reaction is a very exothermic reaction; it has been used to produce liquid iron for welding. A mixture of 2 mol of
1 answer
673 views
In Jonathan Swift's "A Modest Proposal" help me to discuss how it relates to the issues of proverty, depravity, and suffering
0 answers
518 views
I need to know the main concepts of either the Protestant or Catholic Reformation?
1 answer
403 views
What is neoliberalism? examples?
1 answer
341 views
okay I am converting some measurements and is 30.16 mm larger or smaller than 27 mm?
and then 22.2 mm is larger or smaller than
3 answers
352 views
Suppose you are playing a word game with seven distinct
letters. How many seven-letter words can there be?
1 answer
476 views
Consider the set of northwestern states or provinces
{Montana, Washington, Idaho, Oregon, Alaska, British Columbia, Alberta}. If
1 answer
541 views
Please answere these questions: identify each statement as observation, hypothesis, or prediction
and then tell if it is
0 answers
1,090 views
Givin these 9 hypothesis we are supposed to state if they are inductive or deductive
1. Male Red-winged Blackbirds display red
0 answers
833 views
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