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related to: K

1. ### Block on block forces Problem?

... from ma = 7*3 = 21N  But the net force = F - mg*μ k   -> F = 21 + 7*9.8 * 0.2  ~= 34.7N To accelerate the small block...

1 Answers · Science & Mathematics · 14/10/2020

2. ### Chemistry - Gas Stoichiometry Problem?

... / RT = (1.01 bar) x (6.88 L) / ((0.083144598 L bar/ K  mol) x (296 K )) = 0.282348 mol NH3 (0.282348 mol NH3) x (17...

1 Answers · Science & Mathematics · 29/09/2020

3. ### You throw your shoe into the closet. It starts across the floor at 1.5m/s. If the shoe weighs 200g and the kinetic friction coefficient ?

By kinematics: acceleration = net force / mass = -µ k *m*g / m = -µ k *g a = -0.15 * 9.8m/s² = -1.47 m/s² ...

1 Answers · Science & Mathematics · 01/10/2020

4. ### A mass vibrates in simple harmonic motion at the end of a spring. When the displacement of the mass from equilibrium is 2cm, elastic energy?

use the energy to get spring constant PE = ½kd² = 18 k = 2•18/0.02² = 90000 N/m f = (1/2π)√( k /M) = 4 √( k /...

1 Answers · Science & Mathematics · 16/10/2020

5. ### A 105kg swimmer stands on a diving board with spring constant of 7.6 x 10^3 N/m. Determine the period and frequency of the board vibrations.?

frequency f = (1/2π)*√( k /m) + (1/2π)*√(7600kg/s² / 105kg) f = 1.35 Hz ◄ period T = 1/f = 0.739 s ◄ Hope this helps!

1 Answers · Science & Mathematics · 12/10/2020

6. ### Chemistry question, partial pressure?

...calculate the Henry's Law constant for N2: Solubility = K P 5.6X10^-4 mol/L = K (0.80 atm) K = 7....

2 Answers · Science & Mathematics · 12/10/2020

7. ### Mechanics Homework question?

... by  y(x,t) = A sin(kx - ωt + ∅ ) where A = amplitude of wave = 5m k = wave vector ω = angular frecuencia of wave ⇔ ω ⇒ 20 rad/sec  ∅ = phase constant ...

1 Answers · Education & Reference · 09/10/2020

8. ### A shuffleboard player wants to slide a 430g disc a distance of 12m. If the coefficient of kinetic friction between the disc and the surface ?

KE becomes friction work -- ½mv² = µ k *m*g*d mass m cancels, the rest rearranges to v = √(2*µ k *g*d) = √(2 * 0.62 + 9.8 * 12) m/s = 12 m/s

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

9. ### Algebra question?

...a(t) is the population at time "t" a is the initial population k is the growth (or decay) rate t is the time. We are ...

1 Answers · Science & Mathematics · 25/09/2020

10. ### A car mounted on the springs in its suspension acts like a mass on a spring. How will the frequency of oscillations change if passengers?

frequency f = ω / 2π and ω = √( k /m) so if you increase the mass m (by adding passengers), the frequency DECREASES. Hope this helps!

1 Answers · Science & Mathematics · 12/10/2020