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Three point charges,  Q 1 = Q 2 = + 3 . 00 × 10 – 9   C  and  Q 3 , are located on a circular arc of radius R = 4 . 00   c m with center O at  ( 0 ,   0 ) c m , as shown in Fig. 1.1. (a) What is  Q 3  equal to if the electric field at O  ( 0 ,   0 ) c m  is zero? (b) What are the magnitude and direction of the total electric force exerting on a q = – 5 . 00 × 10 – 10   C point charge placed at P ( – 2 . 00 ,   0 ) c m ? (c) What would be the work done by electric force if is moved from point O to point P ( – 2 . 00 ,   0 ) c m ? Two identical spherical shells (M and N) of radius 4 . 00   c m are added in space with the center of shell M at  ( 3 . 00 ,   0 ) c m  and shell N at  ( 0 ,   – 9 . 00 ) c m , as shown in Fig. 1.2. If  + 5 . 00 × 10 – 9   C  and  – 5 . 00 × 10 – 9   C  are uniformly distributed on M and N, respectively. (d) What are the magnitude and direction of electric field at point O contributed by  Q 1 ,  Q 2 ,  Q 3 , and the charges on M and N? (e) What are the magnitude and direction of electric field at point P contributed by  Q 1 ,  Q 2 ,  Q 3 , and the charges on M and N? fig_q17_final.jpg

Your patient, Mrs. X, has been experiencing persistent back and hip pain when running. Her strength grades are WNL, however your supervising PT and you hypothesize that her pain is due to muscle tightness. As such, you are to perform a muscle length test for a patient’s Rectus Femoris.  You should position your patient in:

A patient has a loss of strength at the L2, L3, and L4 levels. Which muscle would you test to confirm this weakness?

An athlete plants his right foot to cut left and inverts their ankle while their foot is dorsiflexed. What injury commonly happens with this MOI?

You are a physical therapist assistant who is going to give an in-service to another PTA on the APTA code of ethics as it relates to a PTA. Which of the following would NOT be an APTA code of ethics standard relating to the physical therapist assistant?

In Whiplash, according to Terence Fletcher there are no two words in the English language more harmful than what?

You have been asked to reassess Mr. Castillo’s UE muscle strength, for development of a PT progress report.  During the patient interview Mr. Castillo reports he has been experiencing significant shoulder and upper arm pain for the last 4 days.  He rates his pain a 7 out of 10 and describes it as dull and aching.  He is unable to recall any injury, activity, or incident which would have resulted in this pain, and reports he has been taking Tylenol to manage it.  What is the most appropriate action?

There are arguably only two fundamental styles of film design: the realistic and the fantastic.

Which of the following is not a type of sound that filmmakers can include in their sound track?

Two electric charges, Q1 and Q2, are separated by a finite distance. Somewhere between the charges, on the line connecting them, the electric field they produce is zero. If the point of zero field is closer to Q1, what can we conclude about the sign and magnitude of the two charges?