Blog

p14(2).png A mass m = 1.50 kg is connected to a string wrapped around a pulley of mass 4.00 kg and radius 75.0 cm as shown.  Treat the pulley as a uniform disk and determine the acceleration of the falling mass..  Consider the pulley to be frictionless and the string to be massless.

Which of the following groups of antigens have decreased activity with their corresponding antibodies when treated with enzymes?

This product is tested for bacterial contamination following storage:

A patient had the following results during tube testing.   Anti A Anti B A cells B cells  Rh typing Patient 0 0 4+ 4+ 4+   Select the ABO type of pRBCs that can be transfused to this patient, using the options provided.

The red cells of a patient were phenotyped, yeilding the following results. Identify the Weiner haplotype: Antisera anti D Anti C Anti E Anti c Anti e Reaction + 0 + + +

p4(1).png A uniform meter stick has a 150 g rock suspended from the zero position and balances when a fulcrum is placed at the 25.0 cm position.  What is the mass of the meter stick?

p1(4).png A simple pendulum consists of a point mass  oscillating on the end of a massless string of fixed length L under the influence of gravity.  Determine the angular acceleration of the simple pendulum shown for L = 1.50 m when the angle q = 35.00.

p5(4).png A uniform ladder of mass 25.0 kg and length 10.0 m leans against a frictionless wall.  If the coefficient of static friction between the ladder and the ground is 0.350, determine the minimum θ at which the ladder starts to slip.

p3(1).png A 35.0 kg uniform plank of length L = 10.0 m is pivoted about one end and held level by a cable as shown.  A 75.0 kg worker stands 2.50 m from the pivot inspecting the plank.  What is the tension in the cable if it makes an angle q = 65.00 with respect to plank?

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 total energy stored in the system when the mass is at a position x = -20.0 cm from its equilibrium position?