If a proton and an electron are released when they are 4.00 x 10-10m apart, find the initial acceleration of each of them.

Multiple-Concept Example 3 provides some pertinent background for this problem. Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occurring electrons is removed. The radius of the orbit is 2.92 × 10-¹¹ m. Determine the magnitude of the electron's centripetal acceleration. Number Units

A proton and an alpha particle (charge = 2e, mass = 6.64 ✕ 10−27 kg) are initially at rest, separated by 8.76 ✕ 10−15 m. (c) Find the speeds of the proton and alpha particle, respectively, at infinity

Suppose that the electric potential ? in a certain region is given by V=Ax2−Bx+C where A=2.15 V/m2, B=3.65 V/m, and C=7.55 V. Find the magnitude of the electric field E at the point ?=1.35 m. E=?

1)What is the electric potential due to the nucleus of hydrogen at a distance of 6.50×10-11 m? Assume the potential is equal to zero as r→∞. (Express your answer to three significant figures.)