First analyze the force that is acting on each charge. The force is determined by the two. objects interacting. If you start with Case 1, the charges are q and 4 q with a separation of d. That means. the force is 4kqq/d2 .
DNA is the most powerful tool available for identification in forensic investigations. Because of its ability to link physical evidence found at a crime scene to a single person, it is often referred to as a âdigital fingerprint.â This method is so precise that it can ensure pinpoint accuracy, down to one in a billion.
Swab Testing. DNA testing requires a neutral third party to take the samples. This ensures that samples are not false or mixed up. A certified tester swipes one specialized swab to the inside of the child's mouth then uses new ones for each parent.The tester sends these samples to a laboratory for analysis.wab Testing. DNA testing requires a neutral third party to take the samples. This ensures that samples are not false or mixed up. A certified tester swipes one specialized swab to the inside of the child's mouth then uses new ones for each parent.