heat=mass*specificheat*deltaTemp solve for specific heat, then compare that value to gold
Calculus Please help!
average slope=(f(5)-f(2))/(5-2) set average slope above to equal f=-2/sqrt(x) then solve for x.
4th grade math
3,5,7, ... arithmetic series.. use the sum formula, set the sum equal to 48, then solve for n.
Calculus...URGENT..show steps please
2xdx-2y dx-2xdy + 2y dy -6dx+2dy=0 for horizontal lines, dy/dx=0 2x-2y-6)/(-2x+2y+2)=0 or y=x-3 for vertical tangent, dy/dx=undifined or -2x+2y+2=0 y=x-2 now solve the points on the parabola. for horizontal lines, substutute x-2 for y in the given equation, solve. Then, do the...
opposite charges, they attract. Use coulombs law to find the force. c. excells= chargeonCork/chargeononeElectron
I think historically, it depends on the time. In Jewish literature, they believed God had called them out of slavery to a promised land, wherever. They ended up in the area of present day Israel. In other times, especially just after WWII, the opportunity in the middle east, a...
you have distance, time horizonal velocity=horizontaldistance/time = 60/3.6 m/s
science( Please Check My Answer)
c is correct. You need to memorize the photosynthesis equation.
H2+O2 >> H20 balance... 2H2+O2 >>2H2O so you use oxygen at half the molar rate of hydrogen....011moles O2
98=42+.2m solve for m
length= 10ft(12in/ft)(2.54cm/in) do the math.
acceleration= v^2/r= = (2pir/period)^2/r= 2PI*(r)/period^2 no change 90 min to seconds, and 4175 miles to meters, and you have it.
They are all crystalline formations of coppper? Different shapes.
work done by friction: (M+m)g*mu*distance KE after imact: 1/2 (M+m)*v^2 set them equal, solve for v just after impact. Now, use the conservation of momentum (M+m)V=mV' solve for V', the speed before the impact.
average velocity=distance/time distance=3/4*70+1/6*95 + 1/2*55 time= (45+10+30)/60 check my thinking. I get none of the answers.
solubility curve is a plot of solubility vs temperature.
I have stated them probably over 5000 times, I assume you meant Newton's Laws of Motion.
The only military governor I know of is the Yankee held part of Louisanna during the civil war. George Foster Shepley
Obviously, energy cannot be conserved, so working with momentum... + direction away from her.. -300*2.30+22.5*39.5=300*0+22.5V solve for V
8 to 10, that is an increase of 2, or 2/8=25 percent
wood stoves for heating, cooking. Solar energy for heat, hot water, electricity.
volumeacid*Normality acid=volumebase*normality base 20.00*Mconc*2 = 39.13*.1061 solve for Mconce, the molarity of the H2SO4
TME=Eg+Ek+Eel TME=mgh+1/2 m v^2 +0 you know m, h, g, v
8th grade math
Learn how to use your calculator.
Trigonometry - LONESTAR
last one: the angle whose cosine is cosine of 150? You have to be kidding..150. next to last one: tan theta=sinTheta/cosTheta where theta is arccos12/13 hmmm then you have sin arcsos( )/cos arc cos( ) or sin arecos ( ). Now draw the triangle, isn't it a a 5 12 13 triangle...
In the beginning, Earth was molten, then the crust cooled and contracted, and is still contracting, and the molten core is still under great pressure.
consider cetnripetal acceleration =graviational v1^2/(re+418) = g*(re/(re+418))^2 solve for v1, then do the same for v2
a. for the slower planet, start with speed and period to get radius. speed=2PI r/period solve for r then centripet force = gravitational force mv^2/r=GMm/r^2 solve for M
work done=20sin30*distance PE gained=mgd*sin20 work done=PE gained+ KEgained solvefor KE gained,then KE=1/2 m v^2 solve for v
m1v1+m2V2=16.3(cos71.5i + sin71.5j) m1*2.84i+m2*3j=above set the i components = icomponents solve and set the j components=jcomponetns solve
retired disabled vet
you are reducing it 325thousandths/60inches or 5.42thousandths/inch or 27 thousandths per five inches. at 5", 400-27or .373 at 10",400-54or, .346 at 15",400-81, or .319, and so on.
Ok, I see it now, the total displacement is the sum of d1=1/2 *1*6^2 d2= 1*6*12 d3=1/2 (-1*6*12)/4 *4^2 check those... then floor=displacement/3 + 1 assuming ground floor is called floor 1 displacement= d1+d2+d3
with what constant deacceleration value?
Maths Literacy,Life Sciences,History,Geography
Perhaps. I am not certain what your are asking.Disney to pull Boy Scouts funding by 2015 over policy banning gay leaders
what does of mean? for instance, what is 3 of 2? It makes no sense.
It will be 22.4 x 3/2 x the moles of KClO3 moles KClO3= 3grams/molmasspotassiumchlorate
time in air: hf=ho+vo*sin20*t-4.9t^2 hf,ho=0, vo given 11m/s solve for time. Now, how far d=voCos20*time
school of business
Is there any possibility of sense here? Is there a question? Now some advice: If you are in college, your college is doing you a great disservice allowing communications such as this writing, I hope it is not reflective of your best work..it does not reflect well on you or you...
zero? there is no data here.
spying? a waste of perfectly good time? self deception? What choices do you have? What are the vocabulary words you have been exposed to in this unit?
Would it help you if John Ball had a character named Homer? Who was the great Virgil of literature? Doesn't Virgil appears as Dante's guide through hell and purgatory? What does Hell and purgatory have to do with Heat of the Night? OHhhh. The setting was deep Mississi...
I suspect you had a reading to do, and you are supposed to be using context clues to figure out the meaning here. I suspect b or d, but you have to look for other clues in the reading.
English- ms sue
YOu have to understand there are no right answers to these, just the more common answers. I agree with your answers.
lets start with a liter of that stuff. mass is 1420 grams, sixty percent is acid, or .6*1420=? the remainder is water. molarity=molesacid/volumesolution = acid mass/molmassHNO3 / 1 liter
It would be much simpler to change quart to liters first, then torr to kpa PV=nRT n= PV/RT Temps in Kelvins, V in liters, P in kpa
my friend tries to race whom? Bad Susan, very bad Susan. Be nice to Girl Scouts, they are trying to make the world a better place. I dont see a question here.. Noel, you are the subject of the sentence, therefore, the nomatative phrase following is a modifier of the subject, s...
it is the downward component of the 20 N force you are pushing.
normal force downward: mg+ 20sin30
could it be horizontal line (stopped), sloping upward (cosntant velocity), and parabokic upwards...constant acceleration.
the fricioal force is upward. it's magnitude is equal to the quantity I specifid.
constant speed? that means the force of gravity down the slope is exactly equal to the force of friction, so the gravity force down the slope is... mgSinTheta
Art- Check Answers- Please
Yes, of course. It is difficult to estimate his artwork total, as he made a lot of Jewelry (thousands of pieces)
Art- Check Answers- Please
looks good to me.
without a diagram, this makes no sense.
the first marble is four or seven=2*1/8 the second marble is the the other number: 1/7 Pr= 2*1/8*1/7=
the origin is the flame itself. I have no idea what x is.
force down the slide=friction mg*sinTheta=mg*mu*cosTheta tan theta= mu
Physics -- check answers please
ed by Lisa on Sunday, February 23, 2014 at 6:39pm. 1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is? my answer: 320N Hmmm. force*distance=work force=work/distance=40/8 N 4. Two objects have the same mass. One ...
y'=-3/x^2 = -3(4)
Boyles law P1V1=P2V2
temp= m*time+k -17=m*2+k -47=m*8+k subtract second equation from first. 30=6m solve for m, then put it back into either equation, solve for k.
what is 200/360 * 2PI*38 ?
balance the equation 2CuO+C>>2Cu + CO2 each mole of carbon yields 2mmoles Cu how many moles of Copper is 63.5 grams? answer: 63.5/63.5=1mole so you need half that number of moles of Carbon, or .5 moles of carbon, or six grams.
distance=veloicty*time=freq*wavelength*p0eriod = 1/period*wavelength*period = wavelength
ethics please help
It is interesting a new twist has occured in the patent drug area in the US....Drug companies have been pressured enough to start adding in their ads for these drugs...a short segement IF YOU CANT PAY FOR XXXX, write YYYY, maybe we can help. However, they are spending far more...
What invasion of Japan in the 19th century?
Hmmm. then sinTheta =1/1.7516=0.571 now try your calculator arcsin, or sin^-1 funcition. make certain you are in degrees mode.
Math Systematric Trial
a. 5+7c=89 try 10 75 try 14 103 try 12 89 a. 4n+100=140
actually, I change my answer. it is true for all b.
no solution is correct.
R<2.8 -.75t+3.85<2.8 -.75t<-1.05 t>1.05/.75
R<2.8 -.75t+3.85<2.8 -.75t<-1.05 t>1.05/.75
Ok, figure the coefficent of friction. mu=tan41.4 you need to prove that. Then Initial KE=change in PE + workdoneonfriction let x be the distance up the plane. 1/2 m v^2=mg x*sinTheta + x*mu*mgCosTheta do the algebra, solve for x.
vf=vi+at In your question, a=(27.8-0)/3.40, vi=0
rate constant=changemoles/time/.3688 = .2288/(.3688(94.995))=
you are correct, a,b,c are true
frequency of oscillation... f= 1/2pi sqrt k/m a, two bungie cords doubles k, so f goes up. b. one single is half the k, so f is lower.
acceleration=v^2/r=900/100=9 m/s^2 which is about 1 g.
I just did this for you.
Have you made the two masses?
GMm1/r1^2=m1 v1^2/r1 GM=v1^2 r1 but GMm2/r2^2=m2 v2^2/r2 GM=v2^2 r2 set them equal V2^2=v1^2*r1/r2 v2= v1 sqrt (r1/r2) check my math...
forcedown-foreceup=Ma mgSinTheta-mu*mgcosTheta=ma a= g(sinTheta-mu*cosTheta)
Science - Start of Physics
I have no idea what you are asking. average velocity is the slope of the endpoint on the distance/time graph
would it make sense to use 2mg and dissove it in 25 ml water?
3P+3PL=32 4P+5PL=59 can you take it from here?
assume a solution in the form of y=AsinBt+CcosDt then y'= BAcosBt -CDsinDt y"=-B^2 A sinBT + CD^2 cosDt put those in the equation.. -B^2 A sinBT + CD^2 cosDt +5BAcosBt -6CDsinDt +6AsinBt+6CcosDt =2sin2t + 6cos2t work with the sin terms first: -B^2 A sinBT -6CDsinDt +6...
conservation of momentum 2-1=(2)V v=.5m/s in the direction of the original 2m/s velocity