A bowling ball of radius 4.25 in and weight of 14 lb is released from rest on a rough surface that is inclined at an angle of 40 degrees with respect to the horizontal. The static coefficient of friction is 0.2 and the kinetic coefficient of friction is 0.15. The length of the incline is 10 ft. The mass center is G, which is also its geometric center. Based on a kinetics analysis, the friction force is determined to be 2.45 N. What type of motion is this

Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)

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

Aheavy piece of hanging sculpture is suspended by a90-cm-long, 5.0 g steel wire. when the wind blows hard, the wire hums at its fundamental frequency of 80hz. what is the mass of the sculpture?