Friday
May 24, 2013

Search: Physics (46)

Number of results: 96,674

physics
I guess we are talking about the ball hanging from a hook and 46 degrees above vertical? Ac = m v^2/r T = tension T sin 46 = m v^2/r T cos 46 = m g so tan 46 = v^2/(rg) v^2 = r g tan 46 but r = 3 sin 46 so v^2 = (3 sin 46)(9.8)tan 46
Saturday, March 19, 2011 at 8:59pm by Damon

physics
C = A - B , C = 4 @ 30 Deg - 3.46 @ 0 deg, X = Hor = 4*cos30 - 3.46 = 3.46 - 3.46 = 0, Y = Ver = 4*sin30 - 0 = 2, C = 0 + i2 = 2 @ 90 deg N of E.
Saturday, September 25, 2010 at 1:04pm by Henry

Chemistry..
It has an empirical mass of what? N = 14; O = 16; NO2 then = 46. The molar mass can be any multiple of 46; i.e., 46*1; 46*2; 46*3; etc.
Monday, December 17, 2012 at 11:21pm by DrBob222

physics
The added load is F = M g = 24.5 N The spring will stretch by an amount delta L = F/k = 0.46 m (46 cm) That will increase the length to the 46 + 15 = 61 cm mark.
Thursday, August 19, 2010 at 5:39am by drwls

maths
11/23 = 22/46 46/46 - (22/46 + 17/46) = ?
Wednesday, June 6, 2012 at 3:09pm by Ms. Sue

physics
1st 3 hours: (0,0) to (-46.0,86.5) next 1.5 hours it moves an additional (0,45.0) so, it winds up at (-46.0,131.5) d = &#8730;(46^2 + 131.5^2) = 139.3
Friday, August 31, 2012 at 1:33pm by Steve

Physics
35 Deg. E of N = 90 - 35 = 55 Deg CCW from the positive x-axis. X = Hor = 46 + 24cos55 = 46 + 13.6 = 59.8 km. Y = Ver. = 27 + 24sin55 = 27 + 19.7 = 46.7 km. D = (59.8 - 46) + i46.7 = 13.8 + i46.7 tanA = 46.7/13.8 = 3.38, A = 73.5 Deg. = Angle of Displacement.
Monday, September 13, 2010 at 10:53am by Henry

Physics
I suppose maybe they mean what is the resistance you will see on the primary side. Now the power on the secondary side is P = V^2/R = (75.8)^2 / 125 P = 46 watts Now I suppose we assume a perfect transformer so we put in that 46 watts on the primary side 46 = 25^2/R R = 625/46...
Tuesday, March 18, 2008 at 6:55pm by Damon

Chem
This is what I did: pH = 8.81 pH + pOH = 14 pOH = 5.19 [OH-] = 10^-5.19 = 6.64 x 10^-6 __ArNH2 + HOH ==&gt; ArNH4^+ + OH^- I 0.1_____________O___________O C -6.46 x 10^-6 +6.46 x 10^-6 +6.46 x 10^-6 E 0.1-6.46 x 10^-6 +6.46 x 10^-6 +6.46 x 10^-6 Kb = {6.46 x 10^-6)^2 / 0.1...
Sunday, July 26, 2009 at 6:35pm by Lena

Physics
1. Eff. = Eo/Ei = 0.46. 570/Ei = 0.46 Ei=570/0.46 = 1239 J. = Chem energy in. 2. Eff. = 0.5Eo/2Ei = 0.25(Eo/Ei). Replace Eo/Ei with 0.46: Eff. = 0.25*(0.46) = 0.115 = 11.5%.
Tuesday, December 4, 2012 at 2:29pm by Henry

geometry
Volume of a cone: V = ( 1 / 3 ) * r ^ 2 * pi * h r ^ 2 * pi = B The area of the circle base V = ( 1 / 3 ) * B * h V = 138 m ^ 3 B = 46 m ^ 2 138 = ( 1 / 3 ) * 46 * h Multiply both sides by 3 3 * 138 = 1 * 46 * h 414 = 46 h Divide both sides by 46 414 / 46 = h h = 414 / 46...
Monday, April 9, 2012 at 9:19pm by Bosnian

Physics
The string makes an angle of sin^-1 28/38.8 = 46.2 degrees with the vertical. Do a force balance in vertical and horizontal directions. T cos 46.2 = Weight = m g Solve for T, the tension. Then use this equation. T sin 46.2 = magnetic force
Sunday, January 17, 2010 at 11:09pm by drwls

Math
consider 1920 --- &gt; t = 0 then your given data can be represented by two ordered pairs (0,46.6) and (60,45.4) slope = (45.4-46.6)/(60-0) = - 0.02 R(t) = - 0.02t + b sub in (0,46.6) b = 46.6 R(t) = -0.02t + 46.6 now just plug in values of t corresponding to the years, e....
Thursday, March 11, 2010 at 1:25am by Reiny

Physics
change in velocity = end - begin = -30 - 16 = -46 m/s a = delts v/ delta t = -46/2.2 = -20.9 m/s^2
Sunday, January 27, 2013 at 5:13pm by Damon

physics
Just apply the tried-and-true F=ma formula. F = 1.3 * 4.2 = 5.46N 5.46 = 7.5a, so a = 5.46/7.5 = 0.728 m/s^2
Thursday, September 22, 2011 at 11:32pm by Steve

Physics
Let i be the unit vector easy and j be the unit vector north. Velocity relative to ground = 46 i wind velocity = 25 cosA i + 25 sinA j (A is measured north from east) velocity with respect to air = 46 cosB i + 46 sinB j (B is direction the plane is pointed, north from east) ...
Wednesday, February 3, 2010 at 12:47am by drwls

geometry
Using w and h for width and length, we know: 2(w+h) = 46 w = 2h-3 So, 2(2h-3+h) = 46 2(3h-3) = 46 6h-6 = 46 6h = 52 h = 8 2/3 w = 14 1/3
Wednesday, September 21, 2011 at 3:32pm by Steve

math!!!!!!! help
to multiply this, convert first the mixed number into improper fraction, 15 1/3 = 46/3 *how to do it: multiply the denominator (which is 3) by the whole number (which is 15) then add the numerator (which is 1), thus 3*15 + 1 = 46,, while the denominator is still 3, thus it'...
Wednesday, October 27, 2010 at 8:53pm by jai

Science-Physics
Initial speed plus the acceleration times the time. 6.61 m/s + 3.46 m/s/s times 3.92 s 6.61 m/s + ____ m/s (fillin the blank with 3.46 times 3.92). The same principle applies, but you will be multiplyint by -3.46 which will result in a decrease in the speed.
Monday, February 18, 2013 at 3:20pm by JJ

calculus
y' = 4x^3 - 48x y '' = 12x^2 - 48 at points of inflection, y'' = 0 12x^2 = 48 x^2 = 4 x = ±2 when x=2 , f(2) = 16 - 96 - 2 = -82 , slope = 32 - 96 = -64 when x = -2, f(-2) = -82 , slope = -32 + 96 = 64 1st tangent: slope = -64, point is (2,-82) -82...
Thursday, March 28, 2013 at 5:00pm by Reiny

physics
46 hp = 46*746 = 34,316 Watts Time = Work/Power = 5.3*10^5/3.432*10^4 = 15.4 seconds
Tuesday, November 8, 2011 at 11:57pm by drwls

MATH
What is the standard deviation of the following data? If necessary, round your answer to two decimal places. 46, 53, 38, 67, 46, 57, 61, 42, 63, 55, 46
Tuesday, June 7, 2011 at 2:36pm by Vince

math
Find common denominator and do the subtraction. Assuming you have a typo: 21/23 - 44/46 = 42/46 - 44/46 = ?
Tuesday, January 25, 2011 at 6:31pm by PsyDAG

Physics
(a) M= F•W =46.6•1.26 = ... (b) M= F•W•sin&#945; =46.6•1.26 •sin43°= (c) M=0
Tuesday, October 30, 2012 at 11:16pm by Elena

Physics
I wonder what the velocity of the puck was at the initial contact with the pad? If you assume it is 46.473m/s, then 46.473^2=2(force/masspuck)*.0439 and you solve for force (mass is in kg)
Sunday, January 9, 2011 at 7:11pm by bobpursley

math
for their points of intersection... 2x^2 - 3x - 1 = x^2 + 7x + 20 x^2 - 10x - 21 = 0 x^2 - 10x + 25 = 21 + 25 , I completed the square (x-5)^2 = 46 x-5 = ± &#8730;46 x = 5 ± &#8730;46 so x = 5+&#8730;46 and x = 5-&#8730;46 or appr. 11.8 and -1.8 ...
Tuesday, May 8, 2012 at 6:11pm by Reiny

Physics
For critical reflection, the angle of refraction in the less dense medium is 90 degrees. Snell's Law says that, in this case, 1.46 sin 90 = 1.46 = 1.48 sin theta theta = sin^-1 1.46/1.48 = sin^-1 0.9865 Look up the angle. It is one of your choices.
Sunday, March 21, 2010 at 3:05pm by drwls

IF, however it is the same amount of dimes and you can do BOTH things: 11 piles of 4 = 44 + 2 = 46 and then 9 piles of 5 = 45 + 1 = 46 The answer must be 46. Sra
Monday, March 22, 2010 at 7:19am by SraJMcGin

math algerba
46 : 23 = 2 : n 46/23 = 2/n cross-multiply 46n = 46 n = 1 did you notice that 46 is exactly twice 23 so 2 is exactly twice what number?
Thursday, April 22, 2010 at 4:49pm by Reiny

Physics
R = 44N@163o + 72N@236o. X =Hor.= 44*cos163 + 72*cos236=-82.3 N. Y =Ver.= 44*sin163 + 72*sin236=-46.8 N. 1. R^2=X^2 + Y^2=(-82.3)^2 + (-46.8)^2 =8963.53. R = 95 N. = Resultant force. tanAr = Y/X = -46.8/-82.3 = 0.56865. Ar = 29.62o = Reference angle. A = 29.62 + 180 = 210o,CCW...
Monday, October 15, 2012 at 7:49pm by Henry

Math
The decimal form 1.46 becomes ______ expressed as a percent. 1- .146% 2- 1.46% 3- 14.6% 4- 146% 1.46 x 100 = 146% is this correct?
Thursday, December 13, 2007 at 3:33pm by Kate

Chemistry
50.00 x 1.10 = 55.00 millimols NaOH 25.00 x 1.86 = 46.5 mmols HCl .......NaOH + HCl ==&gt; NaCl + H2O I......55.00..46.50.....0......0 C.....-46.5..-46.5.....46.5...46.5 E......8.5.....0.......46.5...46.5 That 46.5 millimols = 0.0465 mols H2O. 55.84 kJ/mol x 0.0465 mols = ...
Friday, October 5, 2012 at 2:18pm by DrBob222

Physics
A 4.19-F and a 7.46-F capacitor are connected in series across a 35.0-V battery. A 8.46-F capacitor is then connected in parallel across the 4.19-F capacitor. Determine the voltage across the 8.46-F capacitor.
Monday, February 18, 2013 at 8:03pm by Anonymous

Physics
a = (30 - 0)m/s / 0.64s = 46.88m/s^2. Fs = mg = 0.1kg * 9.8N/kg = 0.98N @ 0 deg = Force of snake. d=0.5at^2=0.5 * 46.88 * (0.64)^2=9.60m. P=F * d/t = 0.98 * (9.6/0.64) = 14.7W.
Sunday, February 27, 2011 at 10:08am by Henry

physics
The initial velocity of a 2.36 kg block sliding down a frictionless inclined plane is found to be 1.46 m/s. Then 1.07 s later, it has a velocity of 4.46 m/s. What is the angle of the plane with respect to the horizontal? I did this: a=(4.46-1.46)/1.07=2.80 m/s^2 force along a ...
Tuesday, September 25, 2012 at 2:20pm by Lauren

math
10:46 pm - midnight = 1:14 midnight - 3:28 am = 3:28 add them up to get 4:42 or, counting from the beginning of today, 10:46 pm = 22:46 3:28 am of tomorrow would be like 27:28, so subtract 27:28 - 22:46 26:88 - 22:46 = 4:42
Thursday, April 18, 2013 at 6:18am by Steve

physics
30*1.56=46.8 15*0.78=11.7 46.8-11.7=35.1 35.1/62=0.567 Answer = 0.567 meters from pivot which is = to (1.56-0.567) 0.993m from the scales
Wednesday, January 25, 2012 at 3:25pm by Darryl Oakbank A level physics

physics
speed = a t starting from rest speed = 360 * .05 u = speed * cos 46 v = speed * sin 46
Sunday, September 5, 2010 at 6:25pm by Damon

physics.
knowing the following: standard vector notation: 46.9 km@ 32 degrees magnitude: 46.9 km theta 58 quadrant 1 x component 24.9 y component 39.7 What would the navigational angle be
Sunday, November 14, 2010 at 1:11pm by Sydney

algebra
t = year - 1920 r = m t + 46.5 in 1980 t = 1980 - 1920 = 60 r = m (60) + 46.5 = 45.3 so m = (45.3-46.5)/60 = -0.02 so r = -0.02 t + 46.5 Our equation agreed in 2003: t = 2003 - 1920 = 83 years r = -0.02 (83) + 46.5 = 44.84 agree now for example in what year will it be 44 ...
Sunday, July 24, 2011 at 4:06pm by Damon

MATH
40 * 1.15 = 46 46 - (46 * 0.15) = ?
Sunday, October 30, 2011 at 8:04pm by Ms. Sue

physics
There is a typo, ajo h/2= 16* 1.2^2 h= 46.08 to fall the entire way is 46.08=16*t^2 solve for t. The 16 is from the formula 1/2 a t^2, where a is 32ft/s^2 You could work this in metric...
Saturday, October 6, 2007 at 3:50pm by bobpursley

chemistry
a)1.40mol Na2SO4 in 1750 g H2O Are these the right steps? 1.40mol Na2SO4 / 1.75kg = .8m 3 * 1.86 degrees C * .8m = 4.46 degrees C OK to here. The next step is wrong. 4.46 degrees C - 1.86 degrees C = 2.6 degrees C Why is it wrong? The normal freezing point of water is zero C; ...
Thursday, April 29, 2010 at 6:26pm by DrBob222

physics
F = 13 kHz. L = 0.050 H. C = 5.0 uF. A=0.2rad * (360Deg/6.28rad)=11.46 Deg. phase diff. Xl = 6.28*13000Hz*0.05 = 4082 Ohms. Xc = 1 / (6.28*13000Hz*5*10^-6) = 2.45 Ohms. tan(11.46) = (Xl-Xc)/R = 4080 / R. R = 4080 / tan(11.46) = 20,124 Ohm.
Saturday, March 10, 2012 at 6:28pm by Henry

math dealing with varibles
solve this problem S-46=14 is it... a)34 b)31 c)32 d)none of the above do you know how to solve for S? You want all of the variables (in this case S) on one side and the numbers on the other. We have S on the left side; we leave it there. We need to move 46 to the right side. ...
Wednesday, November 15, 2006 at 9:03pm by Tre'Chon Williams

math
Simple. 250 x (40/100) x (46/100) = 250 x .4 x .46 = 46 applicants will be selected.
Sunday, December 12, 2010 at 12:15pm by olav

math
100 - 5.5 = 94.5 so present value = original value * .945^n 100 - 54 = 46 so final value = original value * .46 so original value *.46 = original value * .945^n or .945^n = .46 n log .945 = log .46 n = log.46/log.945 = 13.7 years
Thursday, December 29, 2011 at 7:36pm by Damon

math
having trouble deciding between mean and median for which one would best represent the data and why. The numbers are: 22, 25, 34, 35, 41, 41, 46, 46, 46, 47, 49, 54, 54, 59, 60. Thanks....
Thursday, January 17, 2013 at 12:38pm by Brandi

Physics
I assume they mean the rate of DEceleration is the same. The time required to stop will then be larger by a ratio 80/46. Stopping distance is proportional to time x (average velocity), or (80/46)^2. That makes the answer 39 ft x (40/23)^2
Saturday, October 10, 2009 at 7:15pm by drwls

physics
Average speed Vav = 150/6.5 = 23.1 m/s Final speed Vf = 2*Vav = 46.2 m/s Acceleration = Vf/(time) = 46.2/6.5 = ___ m/s^2
Thursday, October 7, 2010 at 10:25am by drwls

Maths
perimeter=2(2y+y+2) perimeter= 6y+4 so, 6y+4&lt;50 6y&lt;46 y&lt;46/6 length&lt;46/3 width&lt;46/6+2 check that.
Saturday, October 23, 2010 at 5:16pm by bobpursley

college math 209
(x+4)^2 = 2x^2 + 19x + 46 (x + 4)(x + 4) = 2x^2 + 19x + 46 x^2 + 8x + 16 = 2x^2 + 19x + 46 collect like terms, then solve you try and post back if you need help
Sunday, January 16, 2011 at 9:08pm by helper

Physics
A light year is a unit of length equal to 9.46•10^15 m t = s/v = 2•10^6•9.46•10^15/199000= 9.5•10^16 s= 3•10^9 years
Monday, April 23, 2012 at 5:20pm by Elena

Trigonometry
The total circumference of the circle is 2 pi R = 2 pi *35.62 = 223.8 meters I kept five significant figures because the original radius had five. Now how much of that circumference are we interested in? fraction = 46 deg 24 min 6 sec / 360 degrees we need to put that all in ...
Wednesday, December 12, 2007 at 5:34pm by Damon

math
There is an infinite number of rectangles which have the same perimeter as the square with perimeter of 100 As long as the length and width of the rectangle add up to 50 e.g. 10 and 40 1 and 49 3.567 and 46.433 &#8730;46 and (50-&#8730;46) etc.
Monday, February 6, 2012 at 11:20pm by Reiny

Physics
Q1: 2.30 = M*g*mus mus = 2.30/(M*g) = 0.129 Q2: 1.46 = M*g*muk muk = 1.46/(M*g) = ___
Monday, March 7, 2011 at 1:04am by drwls

PHYSICS
Treat the atmosphere as planar and use Gauss' Law. The net flux from an volume of cross sectional area A and thickness t is: (167 - 151) *A = 46 Volt/C * A That equals the charge inside the volume, divided by &#949;. 46 V/C*A = (charge density)*A*(thickness)/&#949...
Monday, October 10, 2011 at 7:59pm by drwls

math (am i correct)
Record = m (year -1920) + b where year -1920 = t so R = m t + b 46.9 = m (0) + b so b = 46.9 in 1990, t = 1990 - 1920 = 70 so 45.5 = m (70) + 46.9 m = -.02 so R = -.02 t + 46.9 for 2003 for example t = 2003 - 1920 = 83 so R = -.02(83)+46.9 R = 45.24
Sunday, June 14, 2009 at 6:33pm by Damon

physics
Box weight = m g = 735 N Friction force = 0.57*735 = 419 N net force = Fnet = 465 - 419 = 46 N acceleration = Fnet/m = 46/75 = 0.613 m/s^2
Saturday, December 10, 2011 at 6:42pm by drwls

physics
A. I get a different answer 10 hp = 7460 W = 7.46 kW Energy used (in kW-h) = 7.46*8 = 59.68 Cost = (59.68 kW-h)*(0.0735 \$/kW-h) = \$4.38
Tuesday, October 18, 2011 at 9:48am by drwls

Physics - URGENT
speed of sound in air at atmosphere v = 331 m/s + (0.6 m/s/C)•T v=wavelength * Frequency =&gt; wavelength= v/Frequency = 0.46 m if 732 were first harmonic =&gt; Length being 7th harmonic = 7 * 0.46 m = 3.22 m
Tuesday, February 3, 2009 at 11:13pm by DAS

physics
Monday, September 20, 2010 at 8:22pm by bobpursley

Chem
I'm filling out a chart for 107 (top left) 46 (bottom left) Pd. The Atomic no. is 46, the mass number is 107, the proton number is 46, but I can't seem to figure out what the neutron amount is. Can you help? Thanks.
Thursday, May 28, 2009 at 8:10pm by Em

Math 12A
length = 46 + 2w width = 30+2w building area = (46-2w)(30-2w) 0.7 * lot area = building area 0.7*46*30 = (46-2w)(30-2w) multiply it out and solve quadratic
Tuesday, March 13, 2012 at 11:22am by Damon

Science
Scratch that, number 1 is 23. Human sex cells undergo division by meiosis. 46 to 23. All other cells undergo cell division by mitosis 46 to 46.
Friday, January 25, 2013 at 1:46am by Devron

Chemistry
If the chemist needs 46 moles and he has 46 grams, that isn't enough.
Monday, July 12, 2010 at 8:11pm by DrBob222

math
It will be a +46 since -2 times -23 =+46
Monday, March 4, 2013 at 6:21pm by Dr. Jane

Algebra
76 - 30 = 46 46/0.23 = 200 miles
Friday, October 2, 2009 at 3:00pm by Ms. Sue

chemistry
yes. You know in one mole, there are 6.02*10^23 molecules. So the deal is to find how many moles. Find the molmass first(12*2+1*5+16*1+1=46 checkthat, and do it more accurately) moles= 47/46 number molecules: 47/46 * avagnumber
Sunday, March 14, 2010 at 7:36pm by bobpursley

Physics
(1/2) m v^2 = m g h v = sqrt (2*9.8*1.7) = 5.77 m/s (I disagree with your speed) Ke = (1/2) m v^2 = (1/2)(.46*10^-6 kg)(5.77^2) = 7.99*10^-6 Joules divide that by .46*10^-6 to get J/kg = 16.7 J/kg which is a lot !
Wednesday, November 24, 2010 at 8:19pm by Damon

ALGEBRA
just like the one about salaries m = change in seconds per year = (45.9-46.6)/(1990-1920) = -.01 seconds / year so R = -.01 *t + 46.6 check when t = 70 (that is 1990) R = -.01(70) +46.6 = 45.9 check b) t = 2003 - 1920 = 83 R = -.01(83) + 46.6 = 45.77 c) 45.7 = -.01 t + 46.6 t...
Friday, November 7, 2008 at 6:26pm by Damon

math [geometry]
so would it be 28+18=46 and 46+20=66 right?
Thursday, October 1, 2009 at 6:06pm by chrystina

math
9 1/5 makes 9*5+1/5=46/5 46/5*30=276
Monday, March 12, 2012 at 9:59am by antony

math
18.46 * 0.35 = 6.46
Thursday, November 3, 2011 at 7:42pm by Ms. Sue

physics
The moment of inertia of the rectangular plate about its side is I =ma&#178;/3 , where a is the length of another side (perpendicular to the axis of rotation), therefore, I1 =m•(0.46)&#178;/3, I2 =m•(0.09)&#178;/3, Final angular velocity is &#969; = &...
Wednesday, May 30, 2012 at 8:31pm by Elena

Math
If 4 stamps cost \$1.84, the you will divide \$1.84 by 4 to get the price of 1stamp: So, \$1.84/4 = \$0.46 If 1 stamp costs \$0.46, then multiply it by ten to get the price of 10stamps: \$0.46 x 10 = \$4.6 Now try this and see if you understand the question: Janessa bought 12 oranges...
Tuesday, March 16, 2010 at 6:15pm by Me

physics
for part a: is it the 2*PI*(1.7PI)/.46 OR IS IT 2*pi* (1.7pi/.46)? AND FOR PART B: DO YOU MULTIPLY THE AMPLITUDE BY (SQRT3)/2? AND I UNDERSTAND PART C
Sunday, January 9, 2011 at 4:50pm by kylie

principles of finance
A project has intial outlay of 4,000. It has a single payoff at the end of year 4 0f 6,9996.46. What is the internal rat of return for the project (round to the nearest %) need by tonight. Thank You 4000*(1+r)^4 = 6996.46 (I think you typed too many nines in 6,9996.46) (1+r)^4...
Wednesday, March 28, 2007 at 5:42pm by Jean

MATH
The first one is right. 1) The store has less than 7 cats. 2) 56 - 10 = 46 46/2 = 23
Monday, March 12, 2012 at 9:32pm by Ms. Sue

chemistry
Nitrosyl bromide decomposes according to the following equation. 2NOBr (g)(equilibrium arrow) 2NO (g) + Br2 (g) A sample of NOBr (0.64 mol) was placed in a 1.00-L flask containing no NO or Br2. At equilibrium the flask contained 0.46 mol of NOBr. How many moles of NO and Br2, ...
Friday, November 19, 2010 at 4:19pm by jessie

chem class
Nitrosyl bromide decomposes according to the following equation. 2NOBr (g)(equilibrium arrow) 2NO (g) + Br2 (g) A sample of NOBr (0.64 mol) was placed in a 1.00-L flask containing no NO or Br2. At equilibrium the flask contained 0.46 mol of NOBr. How many moles of NO and Br2, ...
Thursday, November 18, 2010 at 10:32pm by jessie

math
1. Solve system of equations x+3y=7 (1) x=8-3y (2) You can "substitute", use the x from the first equation in the second like this: x = 7 - 3 y from first, use in second 7 -3y = 8 -3y As you can see, that is impossible. You have been given a set of equations that ...
Monday, January 5, 2009 at 3:53pm by Damon

physics
1100g of ice at -50C is mixed with 100g of steam at 120C. Find out how much ice melts? The implied final temperature is 0C. Cice=0.5 Csteam=0.46 Hv=539 Hf =80 here is my work 1100(0.5)(0+50)+80m = 100(0.46)(120-0)+540(100) i am not getting the right answer
Saturday, December 5, 2009 at 10:16am by jeff

algebra
this is what I came up with for my monitor is this right or did I do it wrong. a^2 + b^2 = c^2 13*2+10*2 = c^2 26+20= c^2 46=c^2 46=&#8730;(c^2) 6.78= c
Thursday, November 22, 2007 at 10:21pm by Patrick

Physics Help
net pressure on hole=weight-pushback = densitywater*g*height-.072/radius when net pressure=zero, then radius=.072/(g*.2*densitywater) meters = .46/9.6 millimeters=46.9 micrometers. check that
Wednesday, May 8, 2013 at 1:36am by bobpursley

physics
Since they are asking about initial conditions only, the force makes no difference Vo,x = -0.46 m/s Vo,y = 0.36 m/s The Vo vector is aimed in the second quadrant, at an angle of arctan36/46 = 38 degrees to the -x axis. That would be an angle of 142 degrees from the +x axis, ...
Sunday, November 21, 2010 at 10:53pm by drwls

maths project
which ratio do you want? girls are 20 out of total 46 so 20:46 ie 10:23 and boys are 26:46 ie 13:23. Unless you want to find the ratio between girls and boys?
Tuesday, November 20, 2012 at 7:39am by joanna

Physics
Force = rate of change of momentum = (momentum out - momentum in)/time momentum out = -50*10^-3*18 kg m/s momentum in = +50*10^-3*28 momentum out - momentum in = -50*10^-3*46 Force = -50*10^-3*46/3.5*10^-3 s acceleration = Force/mass = -46/3.5*10^-3 = -13.1*10^3 = 1.31*10^4 m/s^2
Wednesday, October 8, 2008 at 7:45pm by Damon

AP Physics
A flywheel turns through 46 rev as it slows from an angular speed of 3.1 rad/s to a stop. Assuming a constant angular acceleration, find the time for it to come to rest? What is its angular acceleration (in rad/s^2) ? How much time is required for it to complete the first 23 ...
Sunday, January 27, 2008 at 6:39pm by ed

Calculus-Modeling Equations
A(t)= Ao* (1/2)^(t/h) where h is the half life. A/Ao = 1-0.39 = 0.61 0.61 = (1/2)^(420/h) log 0.61 = (420/h) log (1/2) 420/h = 0.71312 h = 589 days When 100 mg becomes 46 mg of radioactive material, A/Ao = 0.46 0.46 = (1/2)^(t/589) t/589 = log(0.46)/log(0.50)= 1.1203 t = 660 days
Friday, March 6, 2009 at 12:08am by drwls

physics
Fc = 220N @ 0deg. = Force of crate. Fp = 220sin(0) = 0 = Force parallel to ground. Fv = 220cos(0) = 220N. = Force perpendicular to ground. Fs = u*Fv = 0.31 * 220 = 68.2N. = Force of static friction. Fk = 0.21 * 220 = 46.2N. = Force of kinetic friction. b. Fn = Fap - Fp - Fk = ...
Tuesday, November 15, 2011 at 6:25pm by Henry

algebra system of equation
Eq1: 10x-5y = 20. Eq2: 7x-5y = -26. Multiply Eq1 by -1: -10x+5y = -20, +7x-5y = -26. Sum:x = -3x+0 = -46, x = -46/-3 = 15 1/3. In Eq2, substitute 46/3 for x: 7(46/3) - 5y = -26, Solve for y and get: 26 2/3 = 80/3. Solution Set = (x,y) = (15 1/3,26 2/3). Check the given Eqs and...
Thursday, July 7, 2011 at 9:20am by Henry

chem
You should have obtained C2H6O (my numbers were 1.98 for C which rounds to 2, 5.94 for H which rounds to 6, and O. empirical formula mass is 46 46 is between 30 and 80. Twice that (C2H6O)2 would have a molar mass of 46*2 = 92 and that's out of the range. So the empirical ...
Sunday, August 19, 2012 at 10:22pm by DrBob222

math
Since we don't have fractions of a penny, we need to round the answer to the nearest cent. \$0.46 or 46 cents per ounce
Tuesday, November 9, 2010 at 1:22pm by Ms. Sue

Geometrey
let one leg be x then the other leg is 80 - 34 - x = 46-x x^2 + (46-x)^2 = 34^2 x^2 + 2116 - 92x + x^2 = 1156 2x^2 - 92x + 960 = 0 x^2 - 46x + 480 = 0 (x -30)(x-16) = 0 x = 30 or x = 16 if x=30, other leg is 46-30 = 16 if x = 16 , then other leg is 46-16 = 30 (symmetrical ...
Wednesday, May 1, 2013 at 7:01pm by Reiny

refraction and snells law
N(quartz) = 1.46, not 146. Snells's law is N1*sin(theta) = N2*sin(theta2) In your case, solve for N2. 1.46 sin45 = N2*sin 22 N2 = 1.46*(.70711)/(.37461) = 1.8876
Saturday, August 21, 2010 at 11:10am by drwls

math
find tge mean, meadian, mode, and range for the set of numbers {76, 37, 56, 53, 46, 37, 63, 67, 36, 46, 55, 66}. a) mean= b) median= c) mode= d) range= is a) 53.17 b) 54 c) 37 and 46 d) 40 if they are wrong can you tell me why?
Friday, November 7, 2008 at 3:26pm by chase

pre-algebra
if a serving has 346 calories, 46 grams of carbs, and 18 grams of protein, determine the # of grams of fat in the serving. c=346, h=46, p=18 f=346-4(46)-9(18)/9 I'm getting a completely different answer than what it's supposed to be. HELP!
Wednesday, December 5, 2012 at 9:10am by tmouery

Physics
Of course it can be more, and less. start with a velocity of 10m/s for 4 seconds, then stop for 46 secnds, . Avg veloity= distance/time= 40m/50sec=0.8m/s During the first four seconds, inst velocity is greater than avg velocty,in the last 46 seconds it is less than avg velocity.
Saturday, October 17, 2009 at 7:32pm by bobpursley

Physics
Since the horizontal component of his speed stays the same (31.3 m/s in this case), the vertical component (which is zero at maximum height) must initially be sqrt(33.0^2 - 31.3^2) = 10.46 m/s. The time spent going up is T = (10.46 m/s)/g = 1.07 s The height that it reaches is...
Wednesday, October 13, 2010 at 1:57am by drwls

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