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TRUE or FALSE: Strychnine causes extensor rigidity by stimulation of GABA receptors.

A bullet, m = 14 g, moving horizontally at 1400 m/s strikes and remains in a block, M = 4.0-kg.  initially, the block is at rest on the edge of a table, a distance h = 60 cm from the floor. How far from the table does the bullet/block combination strike the floor?

BLAST FROM THE PAST BONUS QUESTION WORTH 1 POINT: In a standard electrocardiogram (ECG or EKG), what is the correct pairing of a specific wave/wave complex with the depolarization or repolarization of a particular region of the heart?  

A 3-kg object falls vertically downward in a viscous medium at a constant speed of 2 m/s.  How much work is done by the force the viscous medium exerts on the object as it falls 1.2 m?

A toy rocket, launched from the ground, rises vertically with an acceleration of 16 m/s2 for 6 seconds until its motor stops.  Disregarding any air resistance, what maximum height above the ground will the rocket achieve?

If m = 5.0 kg, what is the tension in string #1?    

A ball thrown vertically from ground level is caught 1.5 seconds later by a person on a balcony at the shown height.  What was the initial velocity of the ball when it was released?  (Select closest answer)

A soccer forward kicks the ball at a speed of 25 m/s and angle of 30o straight towards the goal, from a distance of 10 meters.  How high is the ball when it reaches the goal? 

Two masses, m1 = 9 kg and m2 = 3 kg, are placed at the 60-cm and 100-cm marks of a meter stick, respectively.  The meter stick has no mass and it is free to rotate about a frictionless pivot at the 0-cm end.  The meter stick is released from rest in the horizontal position.  What is the magnitude of the initial linear acceleration of m1? (Select closest answer)

 Which of the following must be trained on a categorized dataset when the fit method is called?