# Posts by Henry

Total # Posts: 14,136

**science**

M*g = 40*9.8 = 392 N. Fp = 392*sin20 = 134.1 N. = Force parallel to the incline = Force required to pull the body up the incline.

**Math**

V = -2000t + 20,000 = 14,000. t = ?.

**Math**

A. J(2,1), K(-5,1), L(-5,2), M(2,2). B. L = 2 - (-5 = 7, W = 2-1 = 1. P = 2L + 2W = 2*7 + 2*1 = 16 Units.

**Physics**

a. P = E^2/R = (120)^2/R = 5.00 W., R = (120)^2/5 = 2,880 Ohms. P = (230)^2/2880 = 18.4 W. b. U.S.A.: 120I = 5.0, I = 0.0417A. Rome: 230I = 18.4, I = 0.08A. I = 1.2 * 0.0417 = 0.050A = Current at which the razor will be damaged. Yes. c. Np/Ns = Vp/Vs = 230/120 = 1.92/1. d. R...

**Physics**

Vt = 72,000m/h * 1h/3600s = 20 m/s. a. Fp = (Vs+Vp)/(Vs-Vt) * Ft =(343+0)/(343-20) * 600 = 637.2 Hz. b. Fp = (Vs-Vp)/(Vs+Vt) * Ft =

**physics**

M1*V1 + M2*V2 = M1*V3 + M2*V4, 2*10 + 3*0 = 2*V3[30o] + 3*4, 20 = 2V3[30o] + 12, 2V3[30] = 8. 2[30] = 8/V3, 1.732 + i = 8/V3, 8/V3 = 2, 2V3 = 8, V3 = 4 m/s. = Speed of 2kg ball.

**physics**

t = 54rev * 1min/3500rev = 0.0154 min. = 0.93s. Vo = 3550 rev/min * 6.28rad/rev * 1min/60s = 372 rad/s. V = Vo + a*t = 0, a = -Vo/t = -372/0.93 = -400 rad/s^2.

**Physics**

Work = F*d = Mg * d = 20*9.8 * 10 = 1960 J.

**physics**

Incomplete.

**Physical Science**

Density = 500g/50cm^3 = 10g/cm^3.

**Science**

Defective light bulb, defective switch, dead battery or miswired.

**math**

^thats wrong yo it don't work

**Engineering Accounting**

The Equation used most often for home and auto loans: P = Po*r*T/(1-(1+r)^-T) (Po*0.01*72)/(1-1.01^(-72)) = 38,060, 0.72Po/0.51150 = 38,060, 1.41Po = 38,060, Po = $27,038.67. = Cost of car.

**Engineering Accounting**

P = 3500 + (480*72) = 38,060. P = Po(1+r)^n = 38,060, r = 0.12/12 = 0.01/mo., n = 72 Compounding periods. Po(1.01)^72 = 38,060, 2.047Po = 38,060, Po = $18,592.16. = Price of car.

**Engineering Accounting**

Price = 3500 + (480*72) =

**Business math**

1. P = Po(1+r)^n. r = 0.046/2 = 0.023 = Semi-annual % rate. n = 2Comp./yr. * 8.5yrs. = 17 Compounding periods. P = 26,000(1.023)^17 = $38,270.058. 8.5yrs. = 102 Months. 38,270.058/102 = $375.20/Mo. 2. I = 38,270.06 - 26,000 = $12,270.06.

**Math**

I = Po*r*t = (1350-300)*(0.1425/12)*1 = $12.47. I = 1350*(0.1425/12)*1 = $16.03. Int. Saved = 16.03 - 12.47 =

**math**

T = Time until app. 60*(T-10/60) = 45*(T+5/60), 60T-10 = 45T + 3.75, 15T = 13.75, T = 0.91667 h = 55 Min.

**math !**

Glad I could help!

**math !**

A = 15 * 6*8 = 720 Sq. in.

**math**

A = 6*4 + 3*8 == 48 Ft^2, Cost = 20 * 48 =

**science**

4D.

**Math**

(14 2/9)% = (128/9)% = (128/9)%/100% = 128/900 = 32/225 = the ratio.

**math**

12/4 = L/6, L = ?.

**Physics**

M1*V1 + M2*V2 = M1*V + M2*V, 64.8*9.2 + 24.4*0 = 64.8V + 24.4V, 596.16 = 89.2V, V = 6.68 m/s.

**Physics**

a. My answer: 207.5 J/s = 207.5 W. b. Work = F*d = Mg*d = 2400*9.8 * 1.3 = 30,576 Joules. T = 30,576J. * 1s./207.5J. = 147.4 s.

**physics**

Incomplete.

**Physics**

7.90h * 3600s/h = 28,440 s. = 2.84*10^4 s. P = 5.90*10^6/2.84*10^4 = 207.5 J/s. = 207.5 Watts.

**Physics**

a. 6.28/360o = x/82.9o, x = 82.9 * 6.28/360 = 1.45 Radians. b. 6.28rad/rev * 6revs =

**Whats the answer**

2-11x^2-8x+6x^2 = -5x^2-8x+2.

**electronics**

What does Tr and ZT mean?

**physics 101**

30mi/h * 1600m/mi * 1h/3600s. =

**algebra**

Sqrt(39sqrt(6-4)) == Sqrt(39sqrt2) = Sqrt(55.15) = 7.43

**Algebra**

L = Sqrt(x^2+Y^2) = Sqrt(9^2+13^2) = 15.8 Ft.

**Math**

TanA = 60/91 = 0.65934, A = 33.4o. E. of N.

**Math**

X => 3, Y = 2.

**math help**

See your previous post.

**Math (Grade 12)**

1. Equity = 367,685-108,653. 2. 0.564 * Equity =

**Physics**

V^2 = Vo^2 + 2a*d, a = (V^2-Vo^2)/2d = (50^2-300^2)/0.08 = -1,093,750 m/s^2. F = M*a = 0.025 * (-1,093,750) =

**science**

d. 6.67 g/mL.

**Phy**

See previous post: 3-17-16, 10:58 AM.

**Phy**

T1 = T2, T1*Cos45 - T2*Cos45 = 0. So, the hor. components cancel. T1*sin45 + T2*sin45 = 20, Replace T2 with T1: T1*sin45 + T1*sin45 = 20, 2T1*sin45 = 20, 1.414T1 = 20, T1 = 14.14 N. = T2.

**math**

Po = $3,500, T = 3 Years, P = 36 * 104.50 = $3762. Int. = P-Po = 3762 - 3500 = $262. Int. = 3500*r*3 = 262, 10,500r = 262, r = 0.025 = 2.5% = APR.

**physics**

Correction: Vs = 343 m/s. (343+14)/(343-75) * 1000 = 357/268 * 1000 = 1332 Hz.

**physics**

Fr = (Vs+Vt)/(Vs-Vc)*Fc = (443+14)/(443-75) * 1000 = 457/368 * 1000 = 1242 Hz. = Freq. heard by the receiver(Truck driver).

**Science: Physics**

d = 1000N * 1m/500N = 2 m.

**Math**

12/4 does not = 8/24. 8/4 = 24/12. So, the ans. is B.

**physics**

KE = 0.5M*V^2.

**physics**

V^2 = Vo^2 + 2g*h = 0, h = -Vo^2/2g = -80/-19.6 = 4.08 m. = max. ht. 1. PE = M*g*h/2 = 0.1*9.8*(4.08/2) = 2.0 Joules. 2. PE = 0.1*9.8*4.08 = 4.0 Joules. 3. KE = 0.5M*V^2 = 0.5*0.1*80^2 = 320 Joules.

**Math**

P = 11/12.

**algebra**

Width = W feet. Length = W+8 Ft. Width = W+4. Length = W+3. A1 = A2, (W+8)*W = (W+3)*(W+4), W^2 + 8W = W^2 + 4W + 3W + 12, W = 12 Ft., W+8 = 20 Ft.

**MATH Help!**

C = (2/6)n = (1/3)n.

**Algebra**

(1,1), (1,2) (1,3), (1,4), (1,5), (1,6). So, there 6 possibilities per side. 6poss./side * 6sides = 36 Possibilities.

**math**

Bought X eggs @ 18 Cents each. Cost = 18x. (x-8)eggs * 24Cents/egg = 24x-192 = Sale price. Profit = Sale Price - Cost = (24x-192) - 18x = 288 Cents, 6x = 480, X = 80.

**maths**

x/(x+6), (x+1)/(x+4) = 3/4, 4x+4 = 3x+12, X = 8. 8/(8+6 = 8/14 = 4/7.

**English**

I hear the mournful wail of millions, whose chains, heavy and grievous yesterday, are to-day rendered more intolerable by the jubilant shouts that reach them. Which definition of rendered is most likely suited for this line? Caused to be a certain nature Melted down Repeated ...

**English**

To forget them, to pass lightly over their wrongs, and to chime in with the popular theme, would be treason most scandalous. . . Which word is most similar to how chime in is used here? Agree Create Harmonize Resound I have no idea because chime in- means to interject, so ...

**math**

Multiply Eq1 by 3 and Eq2 by -4 and add: 15x - 12y = -21 -12x + 12y = 84 Sum:3x = 63, X = 21. In Eq1, replace x with 21 and solve for y: 15*21 - 12y =-21, 315 - 12y=-21, -12y = -336, Y = 28.

**Physics**

Vp + 80 = 325km/h[240o] CCW. Vp + 80 = -162.5-281.5i, Vp = -242.5 - 281.5i = 372km/h[49.3o] S. of W.

**Physics**

Let L = 100 uh. Xl = 6.28*526.5*10^3*100*10^-6 = 330.642 Ohms = Xc. C = 1/6.28*F*Xc = 1/6.28*526.5*10^3*330.642 = 0.00091 uF = 910 pF. at 526.5 kHz Xl = 6.28*1606.5^10^3*100*10^-6 = 1,009.4 Ohms = Xc. C = 1/(6.28*1606.5*10^3*100*10^-6) = 9.9*10^-4 uF = 990 pF. C = 910 pF to ...

**Physics**

a. d = 50 + 75 + 100 = b. D = 50i + 75[45o] + 100[300o] = 50i + 53+53i + 50-86.6i = 103 - 33.6i = 108.3m[-18.1o] = 18.1o S. of E.

**English**

I think the answer is, because he is pretty much telling the people reform is needed. AFTER an unequivocal experience of the inefficiency of the subsisting federal government, you are called upon to deliberate on a new Constitution for the United States of America. What does ...

**science**

Correction: 3. Wavelength.

**science**

1. Frequency. 2. Friction. 3. Period. 4. Refraction. 5. Reflection or Echo. 6. 7. Decibel.

**business math**

P = Po + Po*r*t = 10,500 + 10,500*(0.12/360)*90 = 10,815 Pesos.

**math**

X Qtrs., 2x Dimes, 2x+4 Nickels, 2(2x+4) Pennies. 25x + 10*2x + 5(2x+4) + 2(2x+4) = 913 Cents, 25x + 20x + 10x+20 + 4x+8 = 913, 59x = 913-28 = 885, X = 15 Qtrs., 30 Dimes, 34 Nickels, 68 Pennies.

**Math HELP!**

Vertical angles.

**maths**

t = 50/60 * 24min. = 20 Min.

**algebra**

Ac + Ar = Ay, pi*r^2 + Ar = 6x*7x, 3.14*(2x)^2 + Ar = 42x^2, 12.57x^2 + Ar = 42x^2, Ar = 29.4x^2 = Area remaining.

**Math - Help!**

Vertical angles.

**Math**

3cakes/4people = 3/4 cake each.

**Math**

5/6 = 105/126, 5/7 = 90/126, 8/9 = 112/126.

**algebra**

1. Yes, Y = 3.5x. 2. No. 4. a^2 + b^2 = c^2. b = 5, c = 15, a = ?. 5. 51 * T = 204. 8. (-5,2), (3,7). L^2 = (3+5)^2 + (7-2)^2 = 89, L = 9.4. 9. (3,-1), (5,-8). m = (-8+1)/(5-3) = 11. (5,2), (x,y), m = 3. m = (y-2)/(x-5) = 3, y-2 = 3(x-5). 12. (-8,2), (x,y), (4,-2). x+8 = 1/2(4...

**Physics**

D = 3 + 4i = 5km[53.1o]. N. of E.

**Physics**

Do you mean 20o N. of E. or N. of w. or what do you mean?

**Physics**

Not Correct: A, C, D.

**Math**

James: X years old, Phil: 2x " " Peter: (2x-3), x + 2x + (2x-3) = 32 X =?

**electrical technology**

10 s. = 10,000 mS. x = t/RC, Vr = 9/e^x = 9-8 = 1, e^x = 9, X = 2.197 = 10,000/(R*47), 2.197 =213/R, 2.197R = 213, R = 96.8Kohms. r

**English**

Sorry I didn't separate them well . . .the theory which he attempts to demonstrate and the wonderful facts which he relates soon changed this feeling into enthusiasm. My father looked carelessly at the title page of my book and said, "Ah! Cornelius Agrippa! My dear ...

**English**

I thought it was C for this Victor Frankenstein recounts the influences that lead to his great experiment: I feel exquisite pleasure in dwelling on the recollections of childhood, before misfortune had tainted my mind and changed its bright visions of extensive usefulness ...

**English**

Could I get some check on my answers? Read these lines from Macbeth: The west yet glimmers with some streaks of day: Now spurs the lated traveller apace, To gain the timely inn; and near approaches The subject of our watch. Which of the following correctly describes how the ...

**Math**

Multiply Eq1 by 3 and Eq2 by 2: 9x - 6y = 15. 10x + 6y = 42. Solve by addition.

**Electronics**

Even if an amplifier circuit does not have band-pass filters, there is a limit on the band of frequencies that it can pass. The lowest frequency is determined by the value of the coupling capacitors. The highest frequency is limited by any capacitance in parallel with the ...

**maths**

VAT = 0.05*(52,500+84,000+262,000+672,000+157,000) =

**science**

L = V/F = 3*10^5/40*10^6 = 0.0075 m.

**algebra or algebra1**

(20)(x^3y^4)^3 = (20)(x^9y^12) = 20x^9y^12.

**algebra or algebra1**

F(a) = 2a + 9 = 7, 2a = -2, a = -1.

**algebra or algebra1**

L = Sqrt(21^2+16^2)

**physics**

C = pi*D = 3.14 * 67 = 211 cm. = 2.11 m. Speed = 11.2rev/s * 2.11 m/rev = 23.6 m/s.

**Calculus**

Show that f(x) = 2000x^4 and g(x) = 200x^4 grow at the same rate I know that they grow at the same rate because they are both raised to the same power, but i don't know how to show it.

**Math**

(5,6), (8,9). m = (9-6)/(8-5) = 1, Y = mx + b = 6, 1*5 + b = 6, b = 1, Y = x + 1. (0,5), (6,3). m = (3-5)/(6-0) = -1/3, Y = mx + b = 5, (-1/3)0 + b = 5, b = 5, Y = (-1/3)x + 5. x + 1 = (-1/3)x + 5, x+1 = -x/3 + 5, x + x/3 = 4, Multiply both sides by 3: 3x + x = 12, X = 3 Min.

**Math**

1. 1cents = 2^0 = 2^(d-1). 2. 2cents = 2^1 = 2^(d-1) 3. 4cents = 2^2 = 2^(d-1). 15. 2^(d-1) = 2^(15-1) = 2^14 = 16,384 Cents(pennies) = $163.84.

**math**

1. Take the chicken across. 2. Take the fox across and bring the chicken back. 3. Take the corn across. 4. Take the chicken across.

**Calculus**

Find the range of the function ∫sqrt(4-t^2) dt where a=0 =x [0, 4π] [0, 2π] [-4, 0] [0, 4]

**physics**

a. Impulse = 0.224 * 22 = b. V = Vo + a*t = -22, 18 + a*0.06 = -22, 0.06a = -40, a = 667 m/s^2. F = M*a = 0.224* (-667) =

**Physics**

h = Vo*t + 0.5g*t^2

**Physics**

Y = 5.07*sin60.2 = 4.40 m/s. d = V*T = 24.7, 4.4*T = 24.7, T = 5.61 s.

**physics**

a. V^2 = Vo^2 + 2g*h, Vo = 0, g = 9.8 m/s^2, h = 0.54 m., V = ?. b. k = Mg/d = (1.7*9.8)/0.088m =

**Algebra**

See previous post.

**Algebra**

See previous post.