Which object represents a compound machine? @3.2.6.b4 @2

a)
battery

b)
pliers

c)
match

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?