The pilot of the airplane executes a vertical loop which in part follows the path of a cardioid, r = 200 (1+ cosθ) m, where θ is in radians. his speed at a is a constant vp = 95 m/s . he has a mass of 90 kg . hint: to determine the time derivatives necessary to calculate the acceleration components ar and aθ, take the first and second time derivatives of r = 200 (1 + cosθ). then, for further information, use v = r˙2+(rθ˙)2−−−−−−−−−√ to

Explain the consequences of this addiction to the brain tissue

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?