An isolated parallel-plate capacitor has a surface charge density. If the space between the plates is filled with a material of dielectric constant k = 3, find the induced surface charge density ind on the dielectric?

Avalue that describes how heavy an object is and is related to the force of gravity is

The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping

Figure 9 on page 362 shows various motions of balls. the curved path followed by the yellow ball in b in picture b is result of a) inertia b) centripetal motion c) gravity and horizontal velocity d) linear motion