A1.38 kg piece of cheese is placed on a vertical spring of negligible mass and force constant k = 2600 n/m that is compressed 17.4 cm. part a when the spring is released, how high does the cheese rise from this initial position? (the cheese and the spring are not attached.)

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?