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1. ### Physics - Waves?

... * 10kg * (8m/s)² = 320 J a) 320 J = ½ * k * (4.2m)² and so k = 36.3 N/m which should probably be rounded...

1 Answers · Science & Mathematics · 28/04/2020

2. ### Derivative Question?

L = Lo*(1+k*ΔT) L = 120*(1+17*10^-6*(24-21)) = 120.006 mm lenght increases by 6 μm

1 Answers · Science & Mathematics · 20/10/2019

3. ### gr 12 physics?

field B = k*µ₀*N*I/L where k is the relative permeability... is the length so the answer depends on your value for k. Using k = 200 and plugging in the other values, I get...

1 Answers · Science & Mathematics · 06/03/2020

4. ### What is the capacitance of two metal plates each of area 0.96 m^2 and separated by 0.5 mm using aluminum oxide as the material?

C = k*e*A/d, where C = capacitance in Farads k = relative permittivity e...

1 Answers · Science & Mathematics · 08/02/2020

5. ### I'm unsure what to do about this Coulomb's Law problem. Help?

a) The force on q1 due to q3 (r=10cm = 0.1m) is: F13 = k.q1.q3/r² = 9*10^9 * (-3*10^-6) * (3*10^-6) / 0.1² = -8.1N...

1 Answers · Science & Mathematics · 22/06/2019

6. ### A student pushes a baseball of m = 0.19 kg down onto the top of a vertical spring that has its lower end fixed to a table.?

... elasticPE = KE + GPE as leaves spring 1/2 k x^2 = 1/2 m v^2 + m g h 1/2(630)(0.18^2) = 1/2 (0.19) v^2 + 0.19(9.81)(0...

1 Answers · Science & Mathematics · 03/07/2019

7. ### help in spring question physics?

...force = Static frictional force kx = μ(s)N kx = μ(s)mg x = μ(s)mg/k x = 0.60*1.5*9.8/(1.2 x 10³) x = 0.00735 m or 7.35 mm The block...

2 Answers · Science & Mathematics · 20/10/2019

8. ### What is the electric potential 14.0 cm from a 3.00 μC point charge?

V = k(3µ)/0.14 = 193000 volts Potential from a charge is V = kQ/r in volts    k = 1/4πε₀ = 8.99e9 Nm²/C²    r is separation in ...

1 Answers · Science & Mathematics · 09/02/2020

9. ### help please?!?

I remember when two waves a sin k z+ a sin k(z+dz) merge we we find a sin kz+ a sin kz cos k dz...when theta is very small, tan theta = theta. The condition k dz= kd theta= 2 n pi. You can find the angle between 2 and...

4 Answers · Science & Mathematics · 16/06/2019

10. ### In acetylene, C-H stretch occurs about 3300 cm-1. Estimate the position of a C-T stretch.?

From ω=√︎(k/μ) you see that you have to assess how μ changes from CH to CT...

1 Answers · Science & Mathematics · 13/09/2019