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  A 4.1 kg mass with an initial velocity of 9 m/s [east] collides with a second mass of 5.2 kg that is initially stationary. After the collision, the second mass has a velocity of 6.5 m/s [E 26 degrees N]. a) solve for the velocity of the first mass after the collision. b) explain how you would solve for the % elasticity of the collision.

Which Data Encryption Standard (DES) modes can best be used for authentication?

  Solve for the electric field strength at a location that is 8m [East 20 degrees North] of a +2.1C charge and 6m [South 40 degrees East] of a -3.2C charge.

The main change from MD4 to MD5 includes__________. (Select the best answer choice.)

  If an airplane has a velocity relative to the air of 180 m/s [N 10 degrees E] and the air has a velocity relative to the ground of 30 m/s [E 10 degrees S], find the velocity of the plane relative to the ground.    

Why is Data Encryption Standard (DES) considered “insecure”?

Which of the following terms is used to refer to the output of Message Authentication Code (MAC)?

True or False?  Indomethacin, given as prophylaxis, has been shown to decrease the risk of severe intraventricular hemorrhages in very low birth weight infants?

Which of the following can potentially be an adverse effect of indomethacin?

True or False?  All PDAs, regardless of gestational age of the patient, should be treated with either medication or surgery because overwhelming research has shown that all long-term outcomes are significantly improved when the PDA is closed.