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murzikaleks [220]
4 years ago
14

Eric a forensic technician is called to a crime scene to determine if there are any fingerprints. He uses the process of photo l

uminescence to find the evidence which scientific field did he do?
A: physics
B: Biology
C: chemistry
D: entomology
Physics
2 answers:
poizon [28]4 years ago
5 0
C: chemistry is the answer
xeze [42]4 years ago
5 0

Answer: Option A, physics.

Explanation: Photoluminescence is the emission of some type of light done by matter when it absorbs photons, this field is propper of the physics, that studies the electromagnetic waves (light) and the materials that react with it. While it also has some intersection with chemistry and biology, the principal field that studies this is the physics.

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Jill applies a force of 250 N to a machine. The machine applies a force of 25 N to an object. What is the mechanical advantage o
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Mechanical advantage is defined as the ratio of output load to the input load. The mechanical advantage of the machine will be 0.1.

<h3>What is mechanical advantage?</h3>

Mechanical advantage is a measure of the ratio of output force to input force in a system,

It is used to obtain the efficiency of forces in levers and pulleys. It is an effective way of amplifying the force in simple machines like levers.

The theoretical mechanical advantage is defined as the ratio of the force responsible for the useful work in the system to the applied force.

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\rm{Mechanical advantage}=\frac{F_O}{F_I}

\rm{Mechanical advantage}=\frac{25}{250}

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Hence the mechanical advantage of the machine will be 0.1

To learn more about the mechanical advantage refer to the link;

brainly.com/question/7638820

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