2.- a person weighing 70 kg travels at 2m / s. What is the value of his kinetic energy?

Which feature of a heating curve indicates a change ofn state

Acar travels 40m in 8 seconds find the car speed

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?