# Yahoo Web Search

1. ### A block with mass m = 12 kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4784 N/ m after being?

...½mv² = ½ * 12kg * v² v = 9.8 m /s² 3) W = µmgd = 0.44 * 12kg * 9.8m... It's possible you'll have to give that a negative sign. I consider it understood. 4...

1 Answers · Science & Mathematics · 07/08/2020

2. ### Physics - Magnetic Fields?

I'll use a slightly different convention: v = (1.2e6, 0.8e6, 0) m /s to show the i, j, and k components and by the same convention B = (0.2, 0, 0.08) T...

2 Answers · Science & Mathematics · 10/07/2020

3. ### A single mass (m1 = 2.7 kg) hangs from a spring in a motionless elevator. The spring constant is k = 306 N/ m .?

1) Δx = mg / k = 2.7kg * 9.8m/s² / 306N/ m = 0.086 m or 8.6 cm 2) F = mg = 5.4kg * 9.8m...39;s Second, net F = ma = 8.1kg * (9.8 - 1.9) m /s² = 64 N All answers to...

3 Answers · Science & Mathematics · 29/07/2020

4. ### A mass m = 13 kg rests on a frictionless table and accelerated by a spring with spring constant k = 5032 N/ m . Th?

2 Answers · Science & Mathematics · 07/08/2020

5. ### The volume of an ideal gas?

1) V = nRT / P = (1.21 mol) × (8.3144626 L kPa/ K mol) × (302 K ) / (101 kPa) = 30.1 L 2) (4/3) × pi x ((2.5 × 10^-10 m ) / 2)^3) = 8.181 × 10^-30 m ^3 = 8.181 × 10...

1 Answers · Science & Mathematics · 19/07/2020

v (rms) = √(3RT/ M ) v² = 3RT/ M M = 3RT/v² M = 3(8.314 J/ K mol)(34 + 273 K )/(214.7)² M = 0.166 kg/mol M = 166 g/mol  or 170 g/mol with 2 sig fig

2 Answers · Science & Mathematics · 26/07/2020

7. ### Calc 3 and physics?

...y, ∂ V /∂z> = <4x-5y+yz, -5x+xz, xy> ________________________ a ) At P(4,2,7), grad( V ) = <4*4 – 5*2 + 2*7, -5*4 + 4*7, 4*2> = <20...

1 Answers · Science & Mathematics · 18/07/2020

8. ### This is more of me looking for suggestions but to all Americans: if I were to rename America for plot reasons, what could I name it?

... - F, G - J, K - L, M - N, P - R, S - T, V - Z, TH-NG, A - E, E- I, I...

5 Answers · Arts & Humanities · 15/07/2020

9. ### physics magnitude question thanks?

... the cross product for a proton (positive charge) experiencing F with direction "-j" and v with direction "i" it must be that B has direction " k " -- UP. Since v and...

1 Answers · Science & Mathematics · 29/07/2020

10. ### If the coefficient of kinetic friction between the 150lb crate and the ground is us=0.21. Determine the speed of the crate when t=4s.?

...by F(net) = F(applied) - F(friction) =>ma = F - μ k x N =>68 x a = 441 - 0.21 x (mg) =>68a = 441 - 0.21 x 68 x 9.8 => a = 4.43 m /s^2 Thus by v = u + at => v = 0 + 4.43 x 4 => v = 17.71 m /s NOTE: As there...

1 Answers · Science & Mathematics · 06/08/2020