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p5(1)(1).png For the Atwood’s machine above the masses start from rest a distance d = 50.0 cm apart as shown.  m1 = 60.0 g,  m2 = 20.0 g,  M = 80.0 g, and R = 25.0 cm.  Determine the speed of m1 and m2 when they pass each other.  Treat the pulley as a uniform, frictionless, disk and the connecting string as massless.

p4(2).png A uniform meter stick, pivoted about one end, is held vertically and released.  What is its angular speed when it is horizontal?

A mass of 2.00 kg connected to a spring of spring constant 500.0 N/m undergoes simple harmonic motion with an amplitude of 30.0 cm.  What is the speed of the mass when it is at a position x = -20.0 cm from its equilibrium position?

p1(6).png A solid cylinder of mass 2.50 kg and radius 50.0 cm rotates at 2750 rpm about its cylindrical axis.  What is the angular momentum of the cylinder?

A mass of 2.00 kg connected to a spring of spring constant 500.0 N/m undergoes simple harmonic motion with an amplitude of 30.0 cm. What is the period of oscillation?

A mass of 2.00 kg connected to a spring of spring constant 500.0 N/m undergoes simple harmonic motion with an amplitude of 30.0 cm. What is the angular frequency of oscillation?

A spar buoy consists of a circular cylinder, which floats with its axis oriented vertically. One such buoy has a radius of f26g1q37g1.gif> a height of f26g1q37g2.gif> and weighs f26g1q37g3.gif> What portion of it is submerged when it is floating in fresh water?

A scuba tank holds 16.0 L of air at pressure of 225 atm at a temperature of 20.0 0C.  How many moles of air are in the tank?

50.0 g of superheated steam at 375 0C flows into a container holding 725 g of water at 20.0 0C.  Assuming no energy was lost, what was the equilibrium temperature of the mixture? (LV)water = 539 cal/g, csteam = 0.363 ca/g 0C

A rock is suspended from a scale reads 20.0 N. A beaker of water is raised up so the rock is totally submerged in the water. The scale now reads 12.5 N. What is the density of the rock?