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1. ### physics question??

... vector arithmetic. for the left charge Ex = 2µk/r² pointed right Ey = 0 for the right charge... in Newtons/coulomb OR volts/meter k = 1/4πε₀ = 8.99e9 Nm²/C²

1 Answers · Science & Mathematics · 27/08/2019

2. ### A jet is flying at a speed of 356 m/s in an air temperature of 25 C. What is the Mach number of the jet?

...standard temperature and pressure R = gas constant = 286 m²/s²/K for air T = absolute temperature (273.15 K + °C) = 298.15 K...

3 Answers · Science & Mathematics · 24/08/2019

... = QE in Newtons/coulomb OR volts/meter k = 1/4πε₀ = 8.99e9 Nm²/C² re the other problem, just use...

2 Answers · Science & Mathematics · 23/08/2019

4. ### A student pushes the 2.00 kg block against a horizontal spring, compressing it by 0.195 m.?

Potential energy of the spring at max compression is kx^2 / 2. This gets turned to gravitational potential energy at the top of the incline with no friction h = kx^2 / (2mg)

1 Answers · Science & Mathematics · 23/08/2019

5. ### Physics question?

... following equation is used to solve this problem. F = k * Q1 * Q2 ÷ d^2 I use 9 * 10^9 for k. The unit of the...

2 Answers · Science & Mathematics · 16/08/2019

6. ### Help me, please with my physics.?

You should post your answers so (if they are wrong) we can explain why they are wrong. 1a). Mass (m) stays the same. Volume (V) is halved. Since density = m/V, the density doubles. 1b) I don'...

1 Answers · Science & Mathematics · 18/08/2019

7. ### If a 20 kg of mass, m, is attached to the above spring in problem 20 (spring constant k), what will the frequency of oscillation, f, be?

f = 1/(2 * π) * √(k/m) The first step is solve problem 20 to determine the spring constant... to determine the increase of the length. ∆ L = 0.15 – 0.10 = 0.05 meter k = 4 ÷ 0.05 = 80 N/m Now we can use the spring constant to calculate the...

2 Answers · Science & Mathematics · 16/08/2019

8. ### how far is q2 from q3?

F[1,2] = F[2,3] -k * Q * Q / r[1,2]^2 = -k * Q * Q / r[2,3...

2 Answers · Science & Mathematics · 11/08/2019

9. ### A mass-spring system oscillates with an amplitude of 5.80 cm. If the spring constant is 275 N/m and the mass is 582 g,?

1) E = 1/2 k A^2 E = 0.5 * 275 * 0.058^2 = 0.46 J 2) v = w A = sqrt(k/m) A v = sqrt(275/0.582) * 0.058 = 1.26 m/s 3) a = w^2 A = (k/m) A a = (275/0.582) * 0.058 = 27.41 m/s^2

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

10. ### find the magnitude of total electric field at point p?

...data are given to 3 sig. figs, we should use the value of ‘k’ to 3 sig. figs. E1 = kq1/d² = 8.99*10^9 * 6.60*10^-9...

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