An abusive caregiver shakes an infant to get her to stop crying. the infant stops crying. why?

the answer would be nodding.

first class lever refer to a lever on which the resistance exist in one one side of the fulcrum and an effort is made on the other side you can't get a reaction unless something else causes a reaction.

hormones are  chemical  substances that act like messenger molecules in the  body. after being made in one part of the body, they travel to other parts of the body where they control how cells and organs do their work. for example, insulin is a hormone that's made by the beta cells in the pancreas. when it's released into the blood, insulin regulate how the cells of the body use glucose (a type of sugar) for energy.

yes you can receive a shock severe enough to prevent you from releasing the wire from an ordinary outlet with dry hands