Take a kitchen sieve and immerse
it in molten candle wax. Remove
it quickly, shaking off excess wax
so that the wires of the sieve get a
thin coating of wax. Now pour some
water into it. Explain what happens.

When an object is heated it contracts. a. true b. false

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.

Hat is the most commonly cited cause of occupational injuries in the healthcare sector? a. repositioning of patients b. manual pipetting c. slips and trips d. workplace violence