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Spheres of charge: Two concentric spheres are shown in the figure. The inner sphere is a solid nonconductor and carries a charge of +5.00 µC uniformly distributed over its outer surface. The outer sphere is a conducting shell that carries a net charge of -8.00 µC. No other charges are present. The radii shown in the figure have the values R1 = 10.0 cm, R2 = 20.0 cm, and R3 = 30.0 cm. (k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2)(a) Find the total excess charge on the inner and outer surfaces of the conducting sphere.(b) Find the magnitude and direction of the electric field at the following distances r from the center of the inner sphere: (i) r = 9.5 cm, (ii) r = 15.0 cm, (iii) r = 27.0 cm, (iv) r = 35.0 cm.

Find the square root if it is a real number, or state that the expression is not a real number. If not real, enter DNE. a.    = [eight] b. 

Must show work on scrap paper.  Label the question number. Simplify the radical expression. Assume that all variables represent positive real numbers. Equation editor found above the answer box under

Must show work on scrap paper.  Label the question number. Simplify the radical expression. Assume that all variables represent positive real numbers. Equation editor found above the answer box under

Q3. The 30-kg pipe is supported at A by a system of ­five‑cords. Determine the force in  cord AB for equilibrium. 

Q2. Everyone has your own student id number. Now let a= first 2 digits of your id number, b=last 3 digits of your id number. If , find the value of c. Show all your work in your scratch paper.

The atrioventricular valves are located between which two structures in the heart?

The nurse is assessing the client’s lower extremity pulses and is unable to palpate the pedal pulse of the right extremity. What is the nurse’s best response?

The nurse is reviewing the blood supply to the brain. The major artery supplying the brain is the _____ artery.

What is the main purpose of the valves in the heart?