The force required to draw back the string of an archer's bow by a distance 'x' from equilibrium position is given by f=kx2. If all the energy stored in the bow is Communicated to arrow .show that the maximum average of the arrow Is given by R= 2Kx2/3 mg

Diamond will scratch quartz. true or false

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?