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April 20, 2014

Search: Gr 9 Science - physics

Number of results: 162,119

science gr.8 science fair topic ideas
what are some ideas for science fair projects gr.8?!?! and please give an experiment with it thank u!!
Thursday, January 23, 2014 at 10:30pm by smiley

Physics
And the answer is still wrong, you have the wrong formula and forgot 9.81 as surface grav. Gr=R^2/R^2 * G Gr= (6378^2/6598^2) *9.81 Gr= 9 . 166 708 367 IDK about the percent thing
Saturday, January 22, 2011 at 10:44am by BobSheldon

Science - gr. 10 physics
I HATE PHYSICS
Monday, January 5, 2009 at 7:40pm by POOPEE

Science & Art - Gr 12
Does anyone know some of the physics behind this or is it too advanced?
Saturday, September 13, 2008 at 4:43pm by Josh

Science & Art - Gr 12
You might want to post this as a physics question.
Saturday, September 13, 2008 at 4:43pm by Ms. Sue

Physics helpp
F-F(gr) = ma a= {F-F(gr)}/m = =(15-10)/15=0.33 m/s² (upward)
Tuesday, May 14, 2013 at 10:49am by Elena

Science - gr. 10 physics
How do you find displacement when given a velocity/time graph?
Monday, January 5, 2009 at 7:40pm by Jake

Science - gr. 10 physics
Calculate the area under the velocity-time graph.
Monday, January 5, 2009 at 7:40pm by GK

Gr 9 Science - physics
4V across each resistor, since they are equal and the sum must be 12 V.
Wednesday, January 16, 2013 at 10:49pm by drwls

Gr 9 Science - physics
If all 3 resistors in a series 12V circuit are the same, what will the voltage be across resistor no. 3?
Wednesday, January 16, 2013 at 10:49pm by iza

math
there is a graph, and the title is Students who dress up for spirit week.60 grade 7 boys did,70 grade 7 girls did,70 grade 8 boys did, and 80 gr 8 girls did. the question is what this graph is showing. I put the graph is showing how many gr 7 boys dressed up for spirit week, ...
Saturday, January 31, 2009 at 10:46pm by beeca

Language Arts
http://galev06.physics.uoc.gr/daedalus.html
Wednesday, October 9, 2013 at 7:21pm by Ms. Sue

Science
Is there any science fair contests I can partcipate??? I found this topic in gr 5th and I really want to use it for my science fair project this year but we don't have it at my school so I want to use it for a contest.
Sunday, December 4, 2011 at 8:15pm by Laruen

science
hey!im in 5 gr.
Sunday, August 22, 2010 at 3:36pm by nicole

science gr. 10
URGENT! PLEASE HELP ME!! :) Thanks!
Wednesday, November 19, 2008 at 11:07pm by sarah

science gr. 10
THANK YOU DR BOB!
Wednesday, November 19, 2008 at 11:07pm by sarah

Science gr 8
Please be sure to explain.
Monday, May 4, 2009 at 4:01pm by Hello

Calculus
a) h = 10(.75)^n that is basically what you had b) d = 10 + 10(.75)^1 + 10 (.75)^2 + 10(.75)^3 .... In other words I sort of agree with you c) This is a geometric series like a compound interest problem in general g + gr + gr^2 + .... gr^(n-1) Sn = [ g (1-r^n ]/ (1-r) here g...
Wednesday, April 15, 2009 at 9:55am by Anonymous

Science & Art - Gr 12
Give us a chance. Jiskha has several physics instructors, but they are not online 24/7. Your assumption that this is too advanced is rather arrogant, especially considering that you posted this last question just 11 minutes after your first.
Saturday, September 13, 2008 at 4:43pm by Ms. Sue

Science & Art - Gr 12
Awesome you guys.
Sunday, September 14, 2008 at 5:56am by Josh

science gr.5
I would miss my car most.
Sunday, April 25, 2010 at 8:07pm by bobpursley

math
m=mass[gr] V=Volume[cm^3] rho=densty[gr/cm^3] 1cm=10mm 1mm=1/10 cm 1mm^3=(1/10)^3=1/1000=0.001cm^3 V=20*0.001=0.02 cm^3 m=V*rho=0.02*3.52=0.0704 gr P.S. rho is small Greek letter rho
Wednesday, April 6, 2011 at 10:22pm by Anonymous

physics
Newtons 2nd law vector(ma) = vector(mg ) +vector( N) +vector(Ffr) Projections: ma=F(fr) 0=N-mg mv²/r =μN N=mg mv²/r = kN = μmg μ=v²/gr. tanα =F(fr)/N = μmg/mg = μ = v²/gr. v=sqrt{grtanα} T=2πR/v= 2πR/ sqrt{gr...
Sunday, July 28, 2013 at 9:36pm by Elena

Science & Art - Gr 12
You need to learn some science, you have a vivid imagination, but that has to be tempered with the observations existing already in the real world. To advance, we have to stand on the shoulder of giants, not mixing fancy with facts. Low pressure has nothing to do with gas ...
Saturday, September 13, 2008 at 4:37pm by bobpursley

Science gr 8
What are three problems that fluid technology helps solve?
Monday, May 4, 2009 at 4:01pm by Hello

Science Gr 8
What are two ways in which trees are apart of the water cycle?
Thursday, June 4, 2009 at 8:36pm by Bob

Gr 9 Science - physics (part 2)
If the current at one corner of the 12V series circuit is 1.0 A, what is the current at corner number three (all three resistors are the same).
Wednesday, January 16, 2013 at 10:51pm by iza

science gr.5
what 3 things would i miss the most if there were no pulleys and gears in the world?
Sunday, April 25, 2010 at 8:07pm by alex

science
Your Welcome! :) Wow I just help a high school student I'm only in the 7th gr ;)
Wednesday, January 18, 2012 at 8:25pm by Laruen

Gr 9 Science - physics
Thanks, that's what I thought. Did you happen to see Part 2 of this question? It is: If the current at one corner of the 12V series circuit is 1.0 A, what is the current at corner number three (all three resistors are the same).
Wednesday, January 16, 2013 at 10:49pm by iza

organic chemistry
No. The ethanol would quench the Grignard reagent if the GR was added separately, or the GR would not form if carried out in ethanol.
Friday, February 27, 2009 at 12:21am by Dr Russ

Physics Gr.11
thanks!
Sunday, April 18, 2010 at 5:03pm by bob

Science & Art - Gr 12
Hey SraJMcGin, Haha, yes. It certainly does raise some questions! D:
Sunday, September 14, 2008 at 5:56am by Josh

6th gr GRAMMAR
Cory -- why is your subject 6th gr GRAMMAR when the question was from SAT? This was misleading and deceptive.
Friday, October 17, 2008 at 5:34pm by Ms. Sue

science
To an element x(at.no=70)y(at.no=120)is added,if the ratio of atoms should be 1:10E7,then how many gr of y is required to 100gr of x?
Tuesday, August 2, 2011 at 12:25pm by Komali

Science!! Please HELP
If a population consists of 10,000 individuals at time t=0 years (P0), and the annual growth rate (excess of births over deaths) is 3% (GR), what will the population be after 1, 15 and 100 years (n)? Calculate the "doubling time" for this growth rate. Given this growth rate, ...
Tuesday, October 6, 2009 at 10:10pm by Rani

Physics
hi GR, what is your values plz for Q1
Wednesday, May 22, 2013 at 3:37pm by TA

Physics
GR, the answer isn't coming with that formula!
Wednesday, May 22, 2013 at 3:37pm by robbo

Gr 10 science
I can't find a picture to build a model of calcium sulphate using styrofoam ball pls help
Sunday, March 31, 2013 at 12:25pm by Kim

PhYsIcS
RYANGUVYGYGUYDFGDGHGHNVBXMJJJJJHCXUVTRYJJCJCHTHIOXNHXHKKDDDFGHUUDSGGBVBVBCBBBCBBBCBBBHCHFDFGREGGRGGRE EFREVFGEHDHHGJJNNBMXMMMJ KKKKFHHJJDMXNNCNNNCNDCHHCHCHHCHCHCHHCHCHCHHHCHHCHCHCHHCHCHHCHCHCRHYDYYGGGFCDGDGGCGXGDGVGDSGGGFGGTETR ...
Sunday, November 2, 2008 at 10:29pm by RYAN

Physics
k(min)=(V^2/(gr)) so, (26^2/(9.8*200))= .34
Friday, September 22, 2006 at 3:04pm by Keith

physics
mv²/R =mg v=sqrt(gR)
Monday, November 11, 2013 at 3:08pm by Elena

Physics
mv²/R=mg v=sqrt(gR)
Tuesday, December 24, 2013 at 12:55pm by Elena

math
A medication is available in 30mg. tablets. A patient is given a prescription for gr. ii. How many tablets should the patient take? I am not sure how to work this problem out, and i am confused on the gr. ii. part, i do not know what it means, please help. thank you
Tuesday, September 4, 2012 at 4:50pm by Angel

Physics
tan 15=mg/mv^2/r= gr/v^2 so find v.
Wednesday, October 12, 2011 at 9:40am by bobpursley

Science & Art - Gr 12
Hi Ms. Sue, I am not a frequenter of Jiskha, and not that familiar with how it works. So please bear with me. Having said that, thanks for the input.
Saturday, September 13, 2008 at 4:43pm by Josh

math, medical
A medication is available in 30mg. tablets. A patient is given a prescription for gr. ii. How many tablets should the patient take? I am not sure how to work this problem out, and i am confused on the gr. ii. part, i do not know what it means, please help. thank you
Tuesday, September 4, 2012 at 5:08pm by Angel

GENETIC HYPOTHESIS
AIM:TO DETERMINE THE NUMBER OF GR.10-12 THAT CAN ROLL THEIR TONGUE(rollers) AT SCHOOL. 1)fomulate a hypothesis. MY ANSWER:GR.11 HAS M0RE LEARNERS THAT CAN ROLL THEIR TONGUE (is it correct and any tips to master ths)
Tuesday, March 25, 2014 at 3:07pm by EMIHlE

Physics
Your definition of gr is incorrect. The mass of the object stays the same but the value of the acceleration decreases with altitude. All you have to do is apply the formula gr = (R^2/r^2) * g The value of r 220 miles above the earth's surface is r = 220 + R, where R = 3959 ...
Saturday, January 22, 2011 at 10:44am by drwls

Science & Art - Gr 12
What would it take to generate a ball of pure visible electrical energy in my hands??? Can anyone explain to me a sort of apparatus? I am an avid Artist, and like my science. So I'm trying to work within the boundries of as-realistic-as-possible. A sort of rational explanation...
Saturday, September 13, 2008 at 4:37pm by Josh

PHYSICS Gr.11
Net force is zero when forces are b alanced.
Thursday, April 8, 2010 at 5:58pm by bobpursley

Physics
GR my values for Ques1 d part are V=25 C=401 R=37
Wednesday, May 22, 2013 at 3:37pm by Physics

gr.10 physics
This is not physics. It is basic algebra. Divide both sides of the equation by pi r is the square root of (A/pi)
Wednesday, December 10, 2008 at 7:34pm by drwls

Science
ps: im learning this too ;) im guesting ur in the 7th gr ;)
Wednesday, January 18, 2012 at 7:36pm by Laruen

5th gr science
clue 1 1 a deafening roar 2 maybe a minute 3 maybe an hour clue 2 a "midwest funnel"
Tuesday, September 15, 2009 at 4:33pm by michele

Science & Art - Gr 12 (correction)
I meant to write "multifaceted shapes" in the second sentence. The B2 bomber would be an example, for radar invisibility.
Sunday, September 14, 2008 at 5:56am by drwls

Physics Gr.11
distance fell is proportional to time squared. what is 10^2 and 1^2
Sunday, April 18, 2010 at 5:03pm by bobpursley

physics
and of course assume no friction :) tanTheta=v^2/gr change v to m/s, altitude to m, radius to meters
Saturday, March 19, 2011 at 5:17pm by bobpursley

Science
My physical science class is doing an experiment on the mass of pennies. I hypothesized that newer pennies would have less mass because cheaper materials are being used. I found that before 1982, pennies were made from 95% copper/5% zinc, and after 1982 from 99.2% zinc/0.8% ...
Saturday, September 8, 2007 at 9:12pm by Beth

Science & Art - Gr 12
I don't mean through psychic forces..... umm....... let me rephrase : How would one go about generating a ball of electrical energy?
Saturday, September 13, 2008 at 4:37pm by Josh

physics gr 12
im confused about how u used the difference in time to solve it?
Monday, February 21, 2011 at 3:34pm by just wondering

physics
mg = GmM/R^2 M=gR^2/G, where g=9.8 (m/s^2) , gravitational constant G = 6.6710^-11 (m^3kg^-1s^-2)
Monday, April 2, 2012 at 5:27pm by Elena

Physics
How many calories it take to elevate the temperature of 10 gr of water-from 26C to 50C?
Monday, October 22, 2012 at 3:07pm by Martha

Physics
on the dice, gravity down, and horizontal centripetal force. Tan15=v^2/gr solve for v.
Tuesday, June 11, 2013 at 7:49pm by bobpursley

Science & Art - Gr 12 (correction)
As someone has already stated, this energy would probably be plasma energy, not electricity.
Monday, September 15, 2008 at 5:37am by Josh

Gr 11 Physics Optics Unit
Explain why a virtual image must always be upright.
Wednesday, November 25, 2009 at 7:07am by JOC

Physics
What is the force of gravity at 220 miles above Earth's surface? Calculate how much of a g force the astronauts are actually experiencing. The solution for this math problem is a percentage. You can calculate it using the Algebraic equation: gr = R2/r2 x g R = the radius of ...
Saturday, January 22, 2011 at 10:44am by John

gr.10 physics
could someone please help me with this? Rearrange and simplify for r when A=3.14r^2 by the way, 3.14 is supposed to be pi, but i don't know how to write it...
Wednesday, December 10, 2008 at 7:34pm by slappy

Physics
maybe go with the current to cross faster and upstream to make a shorter distance I'm only in gr.9 but I hope this helps
Monday, October 12, 2009 at 8:41pm by alyce

PHYSICS Gr.11
i am completely confued :( what are balanced and unbalanced forces? How can u tell by looking at a free body diagram and/or a problem? thanks
Saturday, April 10, 2010 at 12:50am by NINI

Talent Search
If you don't do talent search in gr 7th can I still do it in gr 8th???? Ok me and my friend are having a problem like she saying that I can't do it this year which I'm not but she said I can't do it next year. Ok that's unfair I'm going to do very well this year to do it. I'm ...
Sunday, December 4, 2011 at 3:24pm by Laruen

Science gr 8
If you were given a Google page you should be able to read that and get your answers. You're asking us to do the research and give you the answers with no work on your part except typing the same question endlessly.
Wednesday, May 6, 2009 at 3:35pm by DrBob222

science gr. 10
Predict the products. Ba(s) + O2 (g) -> ???? SO2 (g) -> ??? (On the sheet it says the products are elements for this particular equation)
Wednesday, November 19, 2008 at 11:07pm by sarah

8th grade
This map has all of those mountains. Please note that they are not marked "Mt.". . ., but the are marked with triangles. http://www.sigmabooks.gr/maps_en_enGreece.html
Sunday, September 13, 2009 at 9:04pm by Ms. Sue

Science Gr 8
How does the distribution of animal tissues in a organism differ from the distribution of tissues in a plant?
Wednesday, February 4, 2009 at 7:05pm by Mary

Science & Art - Gr 12
Thank you for using the Jiskha Homework Help Forum. :) Did you ever see the movie "The Invisible Man?" It would be fun to be invisible but it's scary to think of someone else "snooping" around! Sra
Sunday, September 14, 2008 at 5:56am by SraJMcGin

PHYSICS Gr 12
PLSSSSS INEED THIS IM WRITTING A TEST RIGHT NOW AND THE EXACTT SAME QUESTION IS ON IT FML NO ONE ANSWERD IT
Wednesday, July 28, 2010 at 4:59pm by ANSWER

physics
v^2=gr r=(v^2)/g r=(416.67)^2/(6*9.8) r=2952.56...m (1500km/h=416.666666 m/s)
Monday, October 18, 2010 at 9:36pm by brinley

PHYSICS Gr. 11
F = 4500 - 1500 = 3000 N a = F/m = 3000/2000 = 1.5 m/s^2
Thursday, April 15, 2010 at 6:57pm by Damon

physics
mg =ma =mv²/R v=sqrt(gR)=sqrt(9.80.6)=2.4 m/s
Wednesday, February 26, 2014 at 5:33pm by Elena

physics
1 g = 0.03527396194958 oz. 1.7510⁶ gr = 61729.4334117660 oz
Sunday, September 23, 2012 at 10:04pm by Elena

science gr.8
A kicker strikes a ball with a strong force. a) Explain the evidence that shows the ball is not filled with liquid? b) Describe what is happening to the particles inside the ball? * chapter is about forces and pressure*
Saturday, February 22, 2014 at 5:50pm by smiley

French (need a website link quick question)
Can you get this practice test? http://www.laits.utexas.edu/tex/gr/int5.html If not, I'd be happy to make up a quiz for you. Sra (aka Mme)
Monday, October 4, 2010 at 7:17pm by SraJMcGin

Physics...help please!
V = 4800 km/h = 1333 m/s Lift*cos A = M*g Lift*sin A = M V^2/R Tan A = V^2/(gR) = 0.6255 A = 32.0 degrees You are correct. Congratulations!
Thursday, April 7, 2011 at 7:28pm by drwls

science gr.8
We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.
Sunday, December 8, 2013 at 4:13pm by PsyDAG

Physics Gr.11
How much farther does a free falling object fall in 10 seconds than in 1.0 seconds? (divide one distance by the other to get the ratio)
Sunday, April 18, 2010 at 5:03pm by NINI

physics
a 25000000 gr rocket is propelled from rest by an engine that produces a 312500 kgm/s2 for 1.375s A) What is the sleds acceleration? B) What is the velocity after 1.375s?
Wednesday, March 7, 2012 at 4:53am by bob

Physics
How much water at 65 C must be mixed with 600 gm of water at 25 C in a 55 gr can specific heat .1, if the temperature of the mixture is to be 31 C?
Wednesday, December 5, 2012 at 8:26pm by Gambatte

Science gr 8
Hi I really need help !! What are the 3 problems fluid technology has helped solve? I posted this question up onlie a few days ago but I was only given a google page Can someone please actually state the 3 problems or give me a proper site thank you =)
Wednesday, May 6, 2009 at 3:35pm by Hello

PHYSICS Gr.11
A bicycle of mass 14.6 kg and a rider of mass 50kg generate a net force of 12N.How fast are they going after 2.0 seconds?
Thursday, April 15, 2010 at 6:54pm by nini

Physics
Oh. F(along radius) = ma μmg=mv/r μg=v/r μgr=v v=(0.550)(9.80)(37.9) v ~= 14.3m/s
Saturday, June 1, 2013 at 1:05pm by Josie

physics
F(along radius) = ma μmg=mv/r μg=v/r μgr=v v=(0.590)(9.80)(36.5) v ~= 14.5m/s
Tuesday, October 18, 2011 at 4:09pm by Josie

Gr. 3 Math
My son brought home overdue work and I am having a problem with it - lol - gr. 3. 1. Brodie wants to show his mother that he did not track mud into the house. a) how can he prove the tracks are not his? b) Will his mother agree why or why not. They show two foot prints in a ...
Saturday, March 15, 2008 at 1:31pm by Rebecca

VB programming
This problem is creating code for a line chart. - Write a program to create the line chart. Use Table in 9.6: Table 9.6] Two -year college enrollments (in thousands). 1960 1970 1980 1990 2000 ---------------------------------- Male 283 1375 2047 2233 2398 Female 170 945 2479 ...
Wednesday, December 1, 2010 at 6:19am by Lee

physics gr.11- please help me ;(
A bicycle of mass 14.6 kg and a rider of mass 50kg generate a net force of 12N.How fast are they going after 2.0 seconds?
Thursday, April 15, 2010 at 7:15pm by Anonymous

Physics - KE
In Figure 11-32 (which shows a ball at the top of an incline, at the bottom of the incline a loop begins with radius R and Q a point on the loop lined up with the center of the loop), a solid brass ball of mass m and radius r will roll without slipping along the loop-the-loop...
Tuesday, March 27, 2007 at 8:41pm by COFFEE

PHYSICS Gr 12
A pilot is flying his aircraft in a vertical loop. He can't stand "feeling" more than 7.0 g's at the bottom of the loop. If he travels at 800km/h, what is the radius of his loop?
Wednesday, July 28, 2010 at 4:59pm by awer

physics
Ac at top of loop = g = v^2/R so v^2 at top of loop must be g R Height difference = (h-2R) so total Ke at top of loop = m g (h-2R) but total Ke = (1/2)m v^2 + (1/2)I w^2 but v = w r so w = v/r total Ke = (1/2) [m + I/r^2]v^2 but v^2 must be gR so total Ke = (1/2)[m + I/r^2]gR ...
Friday, March 25, 2011 at 6:43pm by Damon

Physics
Matching the centrifugal force with the frictional resistance, μmg = mv²/r solving for v, v=√(μgr) =25 m/s This is assuming that there is no superelevation built into the bend.
Saturday, October 3, 2009 at 8:10pm by MathMate

Physics - KE
In Figure 11-32 (which shows a ball at the top of an incline, at the bottom of the incline a loop begins with radius R and Q a point on the loop lined up with the center of the loop), a solid brass ball of mass m and radius r will roll without slipping along the loop-the-loop...
Tuesday, March 27, 2007 at 6:18pm by COFFEE

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