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A rocket expels 1500 kg/s of propellant at a speed of 4.00×104 m/s.  Determine the force on the rocket.

A 9.0 kg mass lies along the y-direction a distance of 4.0 m from the origin, and a 6.0 kg mass lies along the x-direction a distance of 3.0 m from the origin.  Determine the distance from the origin to the center of mass.

Three masses lie along the x-direction.  A mass M is at the origin, a mass 2M is at x = a, and a mass 3M is at position x = 2a.  Determine the position of the center of mass relative to the origin.

p6(3).png For the above molecule, M = 16m, d = 1.0 Å (Å = 10-10 m), and the center of mass lies 0.067 Å from the M mass atom.  Determine the angle q for the molecule.

A  5.00 kg object traveling East at 12.0 m/s undergoes a perfectly inelastic collision with a 3.00 kg object traveling West at 10.0 m/s.  Determine the velocity to the center of mass before and after the collision to show it is constant.

What is the acceleration of a person standing at a latitude of 30.00.  Take the radius of the Earth as 6.38×106 m and its rotational period as 24.0 hrs.

Select the group of antibodies that can be produced without red cell antigen stimulation:

Which of the following is a result of storage changes  in pRBC products?

p17.png The uniform board has a length of 5.00 m and total mass of 12.0 kg.  Determine the torque due to gravity about the pivot.

Which is the most likely cause for this scenario: One screening cell of the AbSc was observed as 1+ at antihuman globulin phase, while the patient ABO type was identified as A Pos.