Auniform bar has two small balls glued to its ends. the bar is 3.00 m long and with mass 2.40 kg , while the balls each have mass 0.700 kg and can be treated as point masses. you may want to review (page) . for related problem-solving tips and strategies, you may want to view a video tutor solution of an abstract sculpture. part a find the moment of inertia of this combination about an axis perpendicular to the bar through its center. express your answer in kilogram-meters squared.

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

Aball of mass 0.3kg is released from rest at a height of 8m.how fast is it going when it hits the ground? accleration due to gravity is g=9.8m/s

Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.