A block of mass m = 2.80 kg slides along a horizontal table with velocity vo = 3.00 m/s. At x = 0, it hits a spring with
spring constant k = 24.00 N/m and it also begins to
experience a friction force. The coefficient of friction is given
by j = 0.400. How far has the spring compressed by the time
the block first momentarily comes to rest? Assume the
positive direction is to the right.

The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?