Which of the following correctly identifies a voltage source and its method of developing electric potential? a. primary cell—heat action on a device b. thermocouple—chemical action c. dry cell—chemical action d. generator—genetic action

Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above