if you ever slapped someone or got slapped yourself, you probably remember the burning sensation. imagine you had the unfortunate occasion of being slapped by an angry per- son, which caused the temperature of the affected area of your face to rise by 2.4°c (ouch!). assuming the slapping hand has a mass of 0.9 kg and about 0.150 kg of the tissue on the face and the hand is affected by the incident, estimate the velocity