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1. ### a 1.2 kg block is held at rest against a spring with a force constant k = 700 N/m. Initially, the spring is compressed a distance d.....?

spring energy = work done + final KE ½kd² = µk*m*g*0.050m + ½mv² When I plug in your values I get d = 0.107 m which should be rounded to 0.11 m = 11 cm

1 Answers · Science & Mathematics · 07/02/2020

2. ### What resistance should you place in parallel with a 56-kΩ resistor to make an equivalent resistance of 38 kΩ?

1/R= 1/r1 +1/r2 ie., 1/38= 1/56+ 1/r2 Solving you get r2 = 118 kilo ohm.

1 Answers · Science & Mathematics · 05/02/2020

3. ### 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

4. ### 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

5. ### what is the potential on this surface? ?

potential = kQ / r where k = 1/4πε₀ = 8.99e9N·m²/C² so potential = 8.99e9N·m²...

1 Answers · Science & Mathematics · 03/02/2020

6. ### Physics 2 question?

... at a distance r is given by Vₑ = kQ/r, where k is the Coulomb constant: 8.99 × 10⁹ N·m²/C²...

2 Answers · Science & Mathematics · 07/02/2020

7. ### #8a. The information below and the next 4 problems apply to one complete problem which is broken up into parts as discussed in the class.?

... - false  so in your format,  B, C  8d. dE = k*λ*z*dx / (z²+x²)^1.5  E = k*λ*z*∫ dx / (z²+...

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

8. ### A balloon rubbed against denim gains a charge of −6.0 µC.?

... one charge and also you should have used the given value of k in the question (8.98755 × 10^9 ·m² /C²) (even though this precision ...

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

9. ### A 80 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 5.5 m/s. (a) How fast is he going as he lands..?

... + mgx = ½kx² I'll assume you meant k = 5.2E4 N/m ½*80kg*(9.4m/s)² + 80kg*9.8m...

1 Answers · Science & Mathematics · 07/02/2020

10. ### Physics question: conducting spheres?

... force in newtons    r is separation in meters    k = 8.99e9 Nm²/C²

2 Answers · Science & Mathematics · 03/02/2020