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The blocks shown in the figures have equal masses and are made of the same material. The velocity is the same in each figure. The total frictional force exerted by the surface on the blocks is Friction1.PNG 

A 0.50-kg mass attached to the end of a string swings in a vertical circle (radius = 2.0 m). When the string is horizontal, the speed of the mass is 9.20 m/s. What is the magnitude of the force of the string on the mass at this position?

 A force of F = 90 N is exerted on mass m1as shown. Both m1 and m2 accelerate to the right at 3 m/s2 along the frictionless surface. The force F makes an angle of 30 degrees to the horizontal. If m2 = 10 kg, and m1 = 2.7 kg calculate the normal force.Screen Shot 2020-11-08 at 7.17.19 PM.png 

A disk of radius 0.05 m and moment of inertia 0.2 kg · m2. If the two forces with force showed in the figure are exserted on the disk, the resulting angular acceleration of the disk is 20 rad/s2. Determine the magnitude of the force . Capture.PNG  

Which of the following types of needles is frequently used in ophthalmologic procedures?

The pictured instrument is:

Phacoemulsification is one method of ____.

Recession/resection is the surgical treatment for ____.

This instrument would most likely be used on which of the following cases:

Enucleation if the removal of ____.