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August 11, 2011
A 40 g marble moving at 2.3 m/s strikes a 29 g marble at rest. Assume the collision is perfectly elastic and the marbles collide
2 answers
asked by
CO2136
8,375 views
in a class of 28 sixth graders , all but one of the students are 12 years old. which two data measurements are the same for the
17 answers
asked by
paul
5,495 views
1.9 kg block slides along a frictionless surface at 1.8 m/s. A second block, sliding at a faster 4.5 m/s, collides with the
2 answers
asked by
falcon306
5,118 views
Air consits of 21% oxygen, 78% nitrogen and 1% argon by volume. Calculate the partial pressures in Pa if total pressure is 1
3 answers
asked by
sam
3,315 views
An ice hockey puck slides along the ice at 12 m/s. A hockey stick delivers an impulse of 4.0 kg*m/s causing the puck to move off
1 answer
asked by
cat21
2,691 views
The world's fastest humans can reach speeds of about 11 m/s. In order to increase his gravitational potential energy by an
2 answers
asked by
cat21
2,634 views
Angle ABC and angle EBF are a pair verical angles. The measurement of angle ABC = 3X + 8 and the measurement of angle EBF = 2X +
3 answers
asked by
amy
2,086 views
a 260 m wire is cut into 3 pieces. The second is 4 times longer than the 1st. The third is 2 times longer than the 2nd how long
2 answers
asked by
jackie
1,758 views
A mixture of toluene and water boils at 90 C, calculate the vapor pressure of toluene at this temperature. Assume the
7 answers
asked by
Help please
1,758 views
Last year it rained on 63 days in mudville.There were 7 times as many days of rain in mudville as in desert hills.How many days
2 answers
asked by
MIKI
1,569 views
A thin rod (length = 1.03 m) is oriented vertically, with its bottom end attached to the floor by means of a frictionless hinge.
2 answers
asked by
Kristi
1,470 views
a corporation had year end 2004 and 2005 retained earnings balances of $320,000 and $400,000, respectively. The firm reported
1 answer
asked by
tanya
1,311 views
a key is dropped from a height of 30 m , If its distance from the ground at t seconds after the release is given by the position
1 answer
asked by
Anonymous
1,210 views
A person dives off the edge of a cliff 40m above the surface of the sea below. Assuming that air resistance is negligible, (a)
2 answers
asked by
Tally
1,205 views
I was just wondering if anyone had any suggestions on where I could find linear data sets to use for my statistics paper. I'm
1 answer
asked by
Lisa
1,164 views
PLEASE EXPLIAN THIS QUESTION. DO ANY LINES OF LONGITUDE PASS THROUGH THE EQUATOR? IF YES? NAME THEM AND EXPLAIN WHY.
1 answer
asked by
NYKIAH
1,099 views
the brakes of a 1000kg car exert a force pf 5000N. How long will it take for them to slow the car to a stop from an initial
2 answers
asked by
Anonymous
1,080 views
A particular rat given n trials in a maze can run through the maze in t minutes, where: t=6+20
n+2 How many trials are needed so
1 answer
asked by
Wanda
1,074 views
A box of mass 7.0kg is accelerated from resr across a floor at a rate of 4.0m/s2 for 5.0s. Find the net work done on the box.
1 answer
asked by
Tally
1,065 views
What is the primary focus on all biological studies?
1 answer
asked by
Ali
1,027 views
how do you solve this quadratic equation? tickets= -0.3x^2+12x+10
Please show the work so I can understand.
2 answers
asked by
CathyT
1,022 views
How long will it take a 1000kg cat=r with a power output of 30,000W to go from rest to 20m/s?
1 answer
asked by
Tally
951 views
x=2cosa-cos2a,y=2sina-sin2a
0 answers
asked by
Anonymous
946 views
A body of mass 0.1 kg is being rotated in a circular path of diameter 1 m on a frictionless
horizontal plane by means of a
1 answer
asked by
Anjali
936 views
Find the area of the parallelogram with vertices at...? (-6,-4), (0,-4), (3,4), and (-3,4)
A) 14 B) 48 C) 24 D) PLEASE HELP
1 answer
asked by
Julie
934 views
What are the values for the mean, median, and standard 52, 43, 30, 38, 30, 42, 12, 46, 39, 37, 34, 46, 32, 18, 41, 5
2 answers
asked by
Anonymous
923 views
Which of the following substances exist(s) as a resonance hybrid?
CO2 (g) SO3 (g) HCO2- (aq) A. I only B. II only C. III only D.
5 answers
asked by
Neha
877 views
What is the approximate boiling point of the substance represented by the complete heating curve below?
1 answer
asked by
Anonymous
850 views
please help me answer this question:
A pilot sets to fly from B to A and wishes to set a course to offset a 32 km/h easterly
1 answer
asked by
Ruby
832 views
i am a 4 digit number.my thousands didgit is 4 less than my tens digit.my hundreds digit equals the sum of my tens digit and my
1 answer
asked by
yonny
809 views
The velocity acquired by a body moving with uniform acceleration is 12m/sin 2 s and 18m/s in 4s. Find the initial velocity of
1 answer
asked by
Sahil
800 views
find an expression for the area under the graph of f(x)= (x^2)+x from x=2 to x=5 as a limit of a riemann sum (do not need to
1 answer
asked by
Kelly
799 views
Write a decimal that has 3 in the tenths place and 1 in the ten-thousandths place
1 answer
asked by
Ron
799 views
if alpha and beta are 2 different values of θ lying between 0 and 2π which satisfy the equation 6cosθ+8 sinθ=9 find the
9 answers
asked by
c uppadhaya
793 views
How many gallons of paint are required to paint the entire area if one gallon covers 25 square feet? Note: 10 ft. 7 in. is
17 answers
asked by
Any
791 views
T=6+20/n+2. Solve please
1 answer
asked by
Chris
722 views
two ways to determine if an equation is linear
2 answers
asked by
drea
704 views
Hasan made a model for 437 using 4 hundreds, 3 tenns, and 7 ones. What are two other ways he could show 437 using base-ten
1 answer
asked by
Diamond Burnette
703 views
A car starts from rest and accelerates for 6.1 s
with an acceleration of 3.1 m/s2. How far does it travel? Answer in units of m.
1 answer
asked by
ALISON
654 views
whta is 0.4 divided by 916
2 answers
asked by
kaytlin
605 views
I need to write 1,500 word paper on "Workplace Ethical Dilemma" and am at a loss for the subject. What would be something that
4 answers
asked by
Mary
595 views
what is the mass of a 257 mL sample of ethanol (ethyl alcohol) at 20 centigrade ? The density of ethanol at 20centigrade is
1 answer
asked by
Anonymous
587 views
Find two vectors v and w such that the three vectors u = (1,-1,-1), v and w are linearly independent independent.
1 answer
asked by
Neeraj
578 views
A bullet is fired horizontally from a rifle at 300m/s from a cliff above a plain below. The bullter reaches the plain 6s later.
1 answer
asked by
Tally
577 views
A 2.0 kg mass swinging at the end of a 0.5 m string is travelling 3.0 m/s. What is the centripetal
force on the mass?
4 answers
asked by
Pranathi
577 views
Consider a ring of radius a containing q amount of negative charges. Derive an expression for the electric field strength at a
1 answer
asked by
Ashik
573 views
n=312 evaluate the expression n+(-5) for each (n)
2 answers
asked by
emily
570 views
A centrifuge spins a suspension at 2500 rpm in a radius of 20 cm. What is the acceleration of the
suspension?
2 answers
asked by
Prathiksha
557 views
Dr bean believes that lanaguage development ia a product of inner predispositions and environmental influences Dr Beans belief
1 answer
asked by
jenn
546 views
How did American Indians resist and protest white Americans' treatment of them in the late 1800s?
3 answers
asked by
Anonymous
541 views
Fun Lanes Bowling charges a fee of $4 to use their shoes and $6 for each game played. Salim wants to figure out how much it will
1 answer
asked by
drea
524 views
Can 0 be the identity for multiplication? Explain why or
why not.
1 answer
asked by
wendy
512 views
A Glass Of Water Is Being Filled With Water At The Rate Of 12 Pi Cm^3/sec
And the radius of the top is 6 cm and the radius of the
1 answer
asked by
jack
510 views
Compare mechanistic and reciprocal interactionism I don;t understand can someone help me?
1 answer
asked by
Anonymous
509 views
What is the pH of a solution in which 296 mL of HCl g, measured at 28.0 C and 1.02 atm, is dissolved in 1.5 L of aqueous
1 answer
asked by
Angel
502 views
A car moves along a circular track at 60 kmph. If the radius of the track is 300 m, calculate the
acceleration towards the centre
0 answers
asked by
Aditya
500 views
I performed a "related substances" test using HPLC on 1 sample. The 1st value for an impurity is 0% (not detected) and the 2nd
0 answers
asked by
elizabeth
488 views
A separate blueprint for the ramp uses a scale of 1cm : 25cm. The height of the ramp on the blueprint is___ cm.
2 answers
asked by
angie
485 views
A ball is thrown up from a twelve foot platform with an initial velocity of 112 feet/second. The formula that describes the
1 answer
asked by
Lauren Marie
482 views
Describe two methods to convert 9/20 to a decimal.
3 answers
asked by
drea
482 views
what's the different when using "plus" and the word "and"?
For example, the choices to the problem were: 1. Cronkite was known
4 answers
asked by
Helina
470 views
Use only the numbers 3,5,6,2,54,& 5 in that order to write an expression that has a value of 100
1 answer
asked by
Jarmeisha
454 views
I'm not sure where to start on these two problems, so any help is greatly appreciated.
1)4^x = x^2 2)5-x^2 = e^x
1 answer
asked by
Charles
442 views
What is the chief rhetorical featuren of this sentence? the baby was like an oxctopus, grabbing at all the toys.
4 answers
asked by
Shella
430 views
calculate the density of a liquid if 150g of a substance with 188mL volume
1 answer
asked by
rhea
416 views
make"x" the subject in the equation; ax^2+bx+c=0
1 answer
asked by
Makinin
414 views
How would I write out in expression 10x -5y
1 answer
asked by
Debra
410 views
A car makes a turn with a 20m radius, the car's speed is 10m.s. what is the centripetal acceleration?
0 answers
asked by
Tally
394 views
A biologisst reports a confidence interval of (3,7,5,5) when estimating the mean height ( incentimeters)
Of a sample of
0 answers
asked by
lulu
390 views
What is the role of homework in learning 2nd language?
2 answers
asked by
Tahir
385 views
A tyre is running around a circle with a radius of 5 m and 12 m/s2 of centripetal acceleration.
Determine the speed of the tyre
0 answers
asked by
Prajwal
380 views
find the solution of the system of equations 10x-5y=-20 and 7x-5y=-20
1 answer
asked by
aaron
380 views
integral of (1-(sinx)^2))/(cosx)dx
i don't know what to make my "u" for u-substitution
2 answers
asked by
Kelly
347 views
what is the domain of f(x)=4x^2-7x +3
1 answer
asked by
Anonymous
338 views
4a exponent of 24/ 8a exponent of 36
is the answer 1a exponent 2/ 2a exponent 3?
1 answer
asked by
Anonymous
336 views
in the quadratic formula ax©÷+bx+c, what does the "a" stand for in ax©÷?
2 answers
asked by
Greg
330 views
can someone help me with this music...it has to b turned n by tomorrow morning..its already been posted
2 answers
asked by
Renee
328 views
g(x)=10/x+7 what this things domain
1 answer
asked by
robert
300 views
what does the F and g mean at the beginning of any function
1 answer
asked by
robert
298 views
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