Physical evidence is the most critical piece of evidence that is used today in forensics.
<u>Explanation:</u>
Evidence, such as items found on-site, is called physical evidence. The physical evidence is hand prints, footprints, fingerprints, cut marks, tidemarks, tool marks and so on. They are carefully collected and analyzed in the laboratory using forensic methods.
According to criminal law, this physical evidence is the king and not biased. It exists despite all expectations and desires. For this reason, it is very important that physical evidence has to be found, uncontaminated, and properly examined.
The energy that the student shoud use in order to climb the stairs is equal to its increase in gravitational potential energy:
where m is the mass of the student, g the gravitational acceleration and
the variation of height. Plugging numbers into the equation, we find
The power required for the student to climb the stairs is equal to the work done divided by the time taken:
Answer:
now his maximum speed is given as
Explanation:
Total time for which Usain Bolt accelerated is given as
now the velocity after uniform acceleration is given as
now remaining time for which he run for the finish line is given as
now the distance moved by him during uniform acceleration is given as
another distance that he moved for uniform speed is given as
now total distance moved by him is 100 m so we have
now his maximum speed is given as
Answer:
Medium and Temperature of medium
Answer: products
Explanation:
In cellular respiration, the cell uses oxygen to burn glucose and produce energy along with carbon-dioxide and water.
Following chemical. reaction occurs:
Oxygen + glucose --> water + carbon dioxide + energy
This chemical energy is transformed to mechanical energy and heat.