Given the reaction: Na  +  2 H2O  –>  2 NaOH  +  H2 What is the total number of moles of hydrogen gas produced when 4.9 moles of sodium reacts completely?

A physical therapist is evaluating grip and pinch strength during an evaluation with a patient with wrist pain.  The therapist instructs the patient to perform the grip/pinch assessment shown in the image below.  Which of the following measurements it the therapist most likely assessing?    

A physical therapist is performing the special test shown in the image below.  Which of the following conditions is the therapist most likely evaluating?    

A physical therapist is evaluating a 60 y/o male presenting with complaints of wrist and hand region pain.  The patient reports the pain has been a gradual onset over the past 6 months and he notices the symptoms after working as an engineer at a petroleum refinery.  On examination, the therapist notes tenderness to palpation of the anatomical snuff box region and weakness of grip on the radial side of the hand.  Thumb extension and abduction PROM is painful.  Based on this information, which of the following is the most likely diagnosis?  

A patient presents with the injury shown in the image below.  Which of the following special tests of the wrist/hand region would be most appropriate to include to assist clinically in ruling in the condition?    

A physical therapist is performing the Weber Two-Point Discrimination Test during an examination of a patient with complains of paresthesia in the wrist and hand region.  Which of the following results is considered normal discrimination? 

FIGURE 8-5 A 2.0-g bead slides along a wire, as shown in Figure 8-5. At point A, the bead is at rest. Neglect friction and use g = 10 m/s2.Refer to Figure 8-5. What is the potential energy of the bead at point A?

FIGURE 8-2 Swimmers at a water park have a choice of two frictionless water slides (see Figure 8-2). Although both slides drop over the same height, h, slide 1 is straight while slide 2 is curved, dropping quickly at first and then leveling out. How does the speed v1 of a swimmer reaching the end of slide 1 compares with v2, the speed of a swimmer reaching the end of slide 2?

FIGURE 8-5 A 2.0-g bead slides along a wire, as shown in Figure 8-5. At point A, the bead is at rest. Neglect friction and use g = 10 m/s2.Refer to Figure 8-5. What is the kinetic energy of the bead at point A?

FIGURE 8-4 An object of mass 2 kg is held at the top of a triangular wedge as shown in Figure 8-4, and then released. The reference level for potential energy is at the base of the triangle. Neglect friction and use g = 10 m/s2.Refer to Figure 8-4. What is the kinetic energy of the object at the top of the wedge?