Nerves will do this when cut

Arteriosclerosis is the hardening of the 

Which drainage instrument is most effective at clearing venous coagula?

A girl of 50.0-kg skating at 10 m/s crashes into another girl of mass 35.0-kg moving in the same direction at 8.0 m/s.  Assuming the impact lasts 0.15 s, after which they move together, what is the average force (in units of N) that the 50.0-kg girl exerts on the 35.0-kg girl during the crash?

A Lazy Susan (turning tabletop) has radius 0.750 m.  An apple is placed at the edge of the turning table. A child turns the tabletop from rest to an angular speed of 5.00 rev/min in 3.00 s.  What is the value of the apple’s tangential acceleration at 3.00 second in m/s2? Enter units as “m/s^2”

A Lazy Susan (turning tabletop) has radius 0.750 m.  An apple is placed at the edge of the turning table. A child turns the tabletop from rest to an angular speed of 5.00 rev/min in 3.00 s.  What is the value of the apple’s centripetal acceleration at the 3.00 second in m/s2? Enter units as “m/s^2”

A girl of 50.0-kg skating at 10 m/s crashes into another girl of mass 35.0-kg moving in the same direction at 8.0 m/s.  Assuming the impact lasts 0.15 s, after which they move together, how fast (in units of m/s)  are they moving immediately after crashing?  

Consider a double integral ∫09∫x281ycos(y) dydx{“version”:”1.1″,”math”:”∫09∫x281ycos(y) dydx”}.  If the order of integration was reversed, the double integral is ∫∫Rycos(y) dxdy{“version”:”1.1″,”math”:”∫∫Rycos(y) dxdy”}.  Determine the limits of integration. _____≤x≤_________,   ________≤y≤__________{“version”:”1.1″,”math”:”_____≤x≤_________,   ________≤y≤__________”} Now evaluate the integral in any order.  Write the answer in exact form. _______

Let  f(x,y)=2 sin(2x-3y){“version”:”1.1″,”math”:”f(x,y)=2 sin(2x-3y)”} and P(0,π){“version”:”1.1″,”math”:”P(0,π)”}.  Find the unit vector that give a) the direction of steepest ascent at P. b) the direction of steepest decent at P. _______

Consider the following function f(x,y)=2x5y2+x2y{“version”:”1.1″,”math”:”f(x,y)=2x5y2+x2y”}. Find four second partial derivatives of f(x,y){“version”:”1.1″,”math”:”f(x,y)”}. _______