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bobpursley

@bobpursley

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We will miss you. All the thousands of children you assisted, and taught, will miss you. May the Lord provide another who has
1. 3 answers
2. asked by bobpursley
3. 831 views
We will miss you. All the thousands of children you assisted, and taught, will miss you. May the Lord provide another who has
1. 110 answers
2. asked by bobpursley
3. 3,973 views
Hayley, I have read a number of posts of yours, and noticed two things.a. you worry about grades far too much, after all, we
1. 10 answers
2. asked by bobpursley
3. 1,852 views
Is it alright to ask a question again and again until you get the answer you want? Goodness, you have been responded to, and
1. 4 answers
2. asked by bobpursley
3. 705 views
Did you know that the best help you can give a student is NOT to do the problem for him, but to lead them to a solution. You can
1. 5 answers
2. asked by bobpursley
3. 622 views
I think I remember you wrote a short essay on this, and I commented that the economics is silly.Here is one the payback period
1. 2 answers
2. asked by bobpursley
3. 675 views
tension in the cord is made up of weight mg, and centripetalforce directed outward. Add those as vectors to get tension.Period=2
1. 0 answers
2. asked by bobpursley
3. 499 views
I cant find the post I intended to add to, so I am here. Descriptive essays take many forms, and you can do much with it. It
1. 2 answers
2. asked by bobpursley
3. 803 views

Answers (46,314)

increase pressure?
yes
the mark up is (41.40-23)/23 * 100= which is over 75 percent
yes, I do. But I am not willing to share personal information.
well, it is not B, nor c, nor D. any ideas?
https://artprep.weebly.com/uploads/2/8/4/9/28493185/9900185_orig.jpg True. Do you have a question?
24/8=3 3*1 3/4=3 9/4=3+2 1/4=5 1/4 cups
1/11= 0.0909090909.... or 0.09 09 09 09 09 09 09 so 6/11= 0.54 54 54 54 54....
Isn't theta a 3.4.5 triangle? If so, you can use your double angle formula.
So were they ever alive? Most biologists say no. Viruses are not made out of cells, they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Even though they definitely replicate and adapt to their environment,
If the lines are the same (the graphs intersect at all points), the system is a consistent system of linear equations and the equations are dependent. That is, any solution of one equation must also be a solution of the other, so the equations depend on
The origin of the universe.
well if it is uniform (constant) deceleration, then PQ=QR=50m average velocty PQ=30m/s, timePQ=50/30 sec average velocity QR=10m/s, time QR=50/10 sec total timePR=timePq+timeQR
dollar from early Flemish or Low German daler. Lieutenant is from old french, meaning "lieu"(in place of) "tenant"(one who has standing).
length=2*width area=length*width= width*2width=2 width^2 width= sqrt (area/2) Perimeter= 2 width + 2 length= 2width+4width=6*width perimeter=6 sqrt(area/2) dP/dt=6 d(sqrt(area/2))/dt take the derivative, and you have it.
Wondering what the question is....
show gravity vector toward Earth, always toward Earth. Show present velocity. Note that as it aproaches, the force of gravity is partly in the direction of velocity, causing it to speed up. https://www.physicsclassroom.com/Class/circles/u6l4b7.gif
200 cm
C is correct. Your teacher is way too easy.
on the second, analyzing and evaluating are critical skills.
yes, that coefficient indicates high (negative) correlation.
What is 20N West?
only if acceleration is assumed constant. displacement/time= average velocity solve for avg velocity then avg velocity= (final velocity + initial velocity)/2 solve for initial velocity then acceleration=(finalvelocity-initialvelocity)/time
you are wrong on two of the answers. What does the line over mean? What is a rational number?
I agree.
dialogue that reveals background information
C is the best answer.
In the textbook; Initial velocity 300m/s, final velocity 40 acceleration=change velocity/time avg velocity in book=170m/s time in book=distance/avgveloctiy=.035/170 sec b. force= mass*acceleration=.025*acceleration in a)
3N+14
This is pretty basic. What is your thinking?
28:36=14:18=7:9
beliefs, own words, feels are not critical skills.
what is 51-21?
d=vf*t-1/2 a t^2=7*7.16 - 0.49 * 7.16^2 = 25 meters
volume? Area=1/2 b*h but 20^2=b^2+h^2 or h=sqrt (400-b^2) area= 1/2 * sqrt( )*b= 1/2 b*sqrt ( ) take the derivative, set darea/db =0, ans solve for b.
Area=L*W Perimeter=2L+2W L= 600-W area=600W-W^2 darea/dw=600-2W=0 or W=300 then calculate L, and it is 300 (a square). max area=LW=9e4
If the solution is in water, then NH4NO3 (aq)
Vo.umeStock*5M = .250*.300 solve for Volume stock
duty is correct.
you need significant professional therapy, in my opinion.
this is pretty simple. Read it, and make choices based on the evidence.
Hint: What does midpoint mean?
I wouldn't go three significant digits...
That sound energy is not spread over an area of the entire area. I assume you are considering a hemisphere. 1.5/(2PI(20^2) J/m^2 s
dV=V*dp/Modulus dV/V= 200e6/130e9 *200e3=200/130 *1e-3
momentum of bullet: mass*velocty=.02*200 force*time=chenge of momentum force= momentum of bullet above / .011 newtons
Danger. I do not understand what the 15 percent is refering to. If it is a 15 percent solution of bleach with some KOH to stablize it as an alkaline pH, then read carefully. If you do not understand this chemistry, then DO NOT do the process. All this
All answers are correct: chemical energy is stored in bonds. However, in the context of cellular biology, answer glucose molecules is probably the teacher's choice.
they both stay in the air for the same time. So figure out the time to drop 1.71m.. distancdrop=1/2 g t^2 solve for time t. so figure how far the launcher went in that same time. distanceHorizontal=7.7(timeinAir)
effective nuclear charge measured where? eff nuc charg= 9 -Number of electrons in the inner shells.
correct.
vf=vi+2ad vf=0; vi=given; d=.2 solve for a.
common factors: a. 5a b. 7 c. (x-1)
Some call the slope coefficient of volumetric expansion.
I object to "in the end," He used imagery throughout the book. Google Gatsby imagery
Hmmmm. Didn't he win a large battle when he was a kid? Didn't he unify his country. Surly you can do better than you have.
put in each x,y and test the formula: is y= 5x+4 answer A is obviously wrong.
a. Hint: y=ln x^4 dy/dx= 1/x^4 * 4x^3=4/x b. dy/dx= 1/(3x-1) * 3 https://www.derivative-calculator.net/
work effort= work done 2400*distancepulled=9800*20
K +1 ; +1 Cr +6 ; +3 gained 3 electrons Sn +2 ; +4 lost 2 electrons Cl -1; -1 so the ratio of Cr to Sn is 2:3 so start out with these coefficents K2Cr2O7 and 3SnCl2 That should get you there pretty quickly.
what is 9e4/8e3 ? about 11
so the problem is your KE at point C if 5.2m/s is incorrect.
Kinetic energyAtC=1/2 m v^2 67.67 (your answer)=1/2 * 5 * v^2 calculate velociy v.
Samuel de Champlain led a group of French colonists through the mouth of the St. Lawrence River to found Quebec in 1608. The fur trade led fortune seekers deeper and deeper into North America. French Jesuit missionaries boldly penetrated the wilderness in
force= mass* acceleration= 850(48-16)/8.0= ....
F=m*a mass= force/acceleration- 7.10/2 kg
what is 4*6*5 ?
It was the first document outlining what values America stood for.
7/10 * it = .8 multipy both sides by 10/7 it= .8*10/7=8 /7=1.143
Use the combined gas law.
You can't. any square root has two roots, + and -.
several. When gravity is present, a balance is often useful. Otherwise, a machine that measures inertia under force (vibration, or acceleration) is used.
momentum is conserved: 10*10 +5*0=10V1 + 5V2 (the velocities after collision V1=(10-.5 V2) conservation of energy 1/2 * 10*10^2=1/2*10*V1^2 + 1/2*5*V2^2 now substiture.. 500=5((10-.5 V2)^2) + 2.5 V2^2 200=2(100-100V2 + 25V2^2) + 2.5 V2^2 collect terms,
force*time=mass*changeVelcoity force=mass/time * changeVelociy=25kg/sec * 36 m/s-= 25*36 N
work to stop=1/2 m v^2= 750*40.9^2 joules (you multiply it ) work to stop=force*distance=force*100 set those two equal, and solve for force. coefficent static friction.... work to stop=1500*9.8*coeffcent set that term to equal work to stop,solve for
work= force*distance=400*4= 1.6kjoules
images and emotional things often indicate bias.
if M1 is hanging down, pulling thru a pulley M2 on the slope upward... force on M1= m1*g The force on M2 down ramp: m2*g*sinTheta. net force= total mass*acceleration m1*g-m2*g*sinThata= (m1+m2) a solve for a. force pulling m2 up ramp= m2*a+m2*g*sinTheta
wouldn't that depend on the hypothesis, the experiment design, and the data collection needed?
makes no sense to me.
all work 40 hours a week. 11 then earn 45*40=1800 per week....wow. 98-11 then earn (87*30) = 2610 per week sum = add them up.
perimeter-side1-side2=third side 17n+11-(5n+6) -(4n+5)= third side
you know what to observe, and when. No surprises, hopefully, especially in safety.
correct
correct.
On November 7, 1835, they released a resolution declaring that "The people of Texas, availing themselves of their natural rights, solemnly declare that they have taken up arms in defense of their rights and liberties which were threatened by the
This makes no sense? Do you have some sketch you are working with?
This question does not involve "right" or "wrong" answers. What do you think? Why?
You can easily sketch the grid, and the triangles, and count.
distance= 1/2 a t^2 + Vo*t 100 =1/2 *.08m/s^2 * t Notice i changed 8cm/sec^2 to m/sec^2 t= sqrt (200/.08) = you do it. now, Vf= a*t
Looking at the mass relationships 8SO2>>8*64=512 16H2S=544 check those. so now is to figure out how much of each divides the 93grams SO2: 512/(1056)=.49*93=45.6 grams H2S: the rest or 54.2 grams Now how much S is that: 45.6*32/64=22.8 grams plus
I agree. Not a good question, I disapprove of trick questions
Lets just look at this combo 1+2+6 1+6+2 2+1+6 2+6+1 6+1+2 6+2+1 or for that combination, six ways 3*2 Now note that you can't have a seven or 8 and get three numbers to add to nine. 1+3+5 combinations, again six ways 2+3+4 combinations, again six ways so
already answered, above.
2. Force= mass*acceleration, and acceleration is the same for both.
L=S+2 L+S=10 S+2 +S=10 2S=8 S=4 L=6
2min(60sec/min)= 120 seconds
The average speed of the particles increased. This is a trick question. The first answer on average temperature is good, but at the microscopic level you can't detect temperature directly.
That is the answer for preparing 1mL. did you intend on that?
Adenosine 5'-triphosphate, or ATP, is the most abundant energy carrier molecule in cells. This molecule is made of a nitrogen base (adenine), a ribose sugar, and three phosphate groups. others are correct.

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