An alpha particle (charge 2e) is sent at high speed toward a gold nucleus (charge 79e).  What is the electric force acting on the alpha particle when it is 1.4 x 10-14 m away from the gold nucleus? 733.2 N towards 185.7 N away 172.8 N away 733.2 N away 185.7 N towards

A positive charge of 4.20 μC is fixed in place. From a distance of 4.20 cm a particle of mass 6.20 g and charge +3.00 μC is fired with an initial speed of 62.0 m/s directly toward the fixed charge. How close to the fixed charge does the particle get before it comes to rest and starts traveling away? (in cm)

What charge is required to produce a repulsive force of 10 microNewtons on a charge q= 4.5 nanoC that is 5.0 m away?

An electron and a proton are separated by a distance of 1.9 x 10-10 m (roughly the diameter of a single atom). The masses of the electron and proton are me = 9.11 x 10- kg and 1.673 × 10-2' kg, respectively. The elementary charge mp e = 1.602 x 10-19 C. The universal gravitational constant G = 6.67 x 10 N-m²/kg² and the coulomb constant k = 8.988 × 10° N-m²/C2. What is the magnitude F, of the electric force between the electron and the proton? Fe= N. What is the magnitude F, of the gravitational force between the electron and the proton? Fg In this scenario, how many times stronger is the electric force than the gravitational force? Fe Fg about us privacy policy terms of use contact us help careers || %3D