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1. ### A 5kg block is initially at rest on a rough surface with friction coefficients μs= 0.5 and μk= 0.2.?

... Then the (kinetic) friction force is Fk = µk*m*g = 0.2 * 5kg * 10m/s² = 10 N ← using a nice round ...

2 Answers · Science & Mathematics · 15/12/2019

2. ### A 12.3kg ball is shot out of a cannon vertically up. The spring (k= 1.62x10^4 N/m) in the cannon is compressed by 61.7 cm to shoot the ball.?

This question has nothing to do with Personal Finance, and you will not get a useful answer here.

2 Answers · Science & Mathematics · 29/10/2019

3. ### Help with physics homework?

... frequency of spring in harmonic motion is given by? ω = sqrt(k/m) = 2.13 s^-1 If at t=0 the mass is in negative amplitude (x = -...

2 Answers · Science & Mathematics · 07/02/2019

4. ### 2 blocks (collision and separation) Simple harmonic motion?

...it goes in simple harmonic motion, derive an ex(p)ression fo(r) the spring constant,k if the spring compresses a distance l (L for clarity) before bring block1...

2 Answers · Science & Mathematics · 07/08/2019

5. ### If the force F does 250 J of work in stretching out the spring, what is its final length?

500 = k^x^2 x = √500/150 = √10/3 = 1.826 m F = k*x = 1.826*150 = 274 N

1 Answers · Science & Mathematics · 13/04/2019

6. ### Physics, energy question?

2*W*h = k*x^2 k = 1000*20/(20-10)^2 = 200 N/m

1 Answers · Science & Mathematics · 06/11/2019

7. ### Physics Hookes Law?

... = ½kA² - ½k(A/2)² mv² = k(A² - (A/2)²) v² = k/m(A² - (A/2...

2 Answers · Science & Mathematics · 10/07/2019

8. ### Phsics question with picture last one didnt work lol electric potential?

.... To get total potential we simply add, Total potential at A = k(+q)/3 + k(-2q)/6 = kq(1/3 – 1/3) = 0 Total potential at B = k(+q...

3 Answers · Science & Mathematics · 17/02/2019

9. ### In a pinball game, a spring constant 175 N/ fires a 105g pinball from its max compression of 11.5 cm. The pinball first travels horizontally?

... to gravity potential. PS = PE ½kx² = mgh k = 2mgh / x² k = 2(0.105)(9.81)(2.31) / 0.115² k = 359.835992... k...

3 Answers · Science & Mathematics · 29/10/2019

10. ### Physics Help!!?

... in coulombs    r is separation in meters    k = 8.99e9 Nm²/C² (9e9)(1.602e-19)(14•1.602e-19) / d = 28.7 d = (9e9...

1 Answers · Science & Mathematics · 28/11/2019