The diagram below is showing the motion and position of ball-A and ball-B. Both balls were lifted up in the air to the same height and at the same time. If ball -B is heavier than ball-A, then ball-B would accelerate towards the ground. Answer the following questions:

a- Which of the above balls has maximum Gravitational Potential energy? _

b- Which of the above balls has maximum Kinetic energy? _

c- Which of the above balls is losing its Gravitational Potential energy first? _

d- Which of the above balls would lose all its Kinetic energy first? _

e-After losing all their G. P.E and K. E, both of the balls would become stationary and now they would have only _ energy.

Which two particles are found in the center of an atom

To understand the electric potential and electric field of a point charge in three dimensions consider a positive point charge q, located at the origin of three-dimensional space. throughout this problem, use k in place of 14? ? 0. part adue to symmetry, the electric field of a point charge at the origin must point from the origin. answer in one word. part bfind e(r), the magnitude of the electric field at distance r from the point charge q. express your answer in terms of r, k, and q. part cfind v(r), the electric potential at distance rfrom the point charge q. express your answer in terms of r, k, and q part dwhich of the following is the correct relationship between the magnitude of a radial electric field and its associated electric potential ? more than one answer may be correct for the particular case of a point charge at the origin, but you should choose the correct general relationship. a)e(r)=dv(r)drb)e(r)=v(r)rc)e(r)=? dv(r)drd)e(r)=? v(r)r

Atank is filled with an ideal gas at 400 k and pressure of 1.00 atm . part a the tank is heated until the pressure of the gas in the tank doubles. what is the temperature of the gas?