Certifying Authority. A digital signature is an electronic form of a signature that can be used to authenticate the identity of the sender of a message or the signer of a document, and also ensure that the original content of the message or document that has been sent is unchanged.
Calculate the number of kilocalories from fat. (1 gram of fat = 9 kcal; 1 gram of carbohydrate or protein delivers 4 kcal.) Source(s): calculate number kilocalories fat: https://tr.im/12Lai.
Officially energy in foods is expressed in kilojoules (kJ). Energy in foods historically is expressed in kilocalories (kcal). One kcal equals 4.184 kJ. The scientific definition of a kilocalorie is the amount of energy needed to raise the temperature of 1 kilogram of water up one degree Celsius from 15Â° to 16Â° at one atmosphere.