What type of evidence should be collected first ?

Physics

1 answer:

grigory [225]2 years ago

6 0

Answer:

The evidence that should be collected first is the evidence such as fingerprints, footprints, tire tracks, blood and other body fluids, hairs, fibers and fire debris. NIJ funds projects to improve: Identification of blood and other body fluids at the scene.

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At what height is an object that weighs 490 newtons if its gravitational potential energy is 4900 J?

Sergio [31]

Answer:

The height at which the object is moved is 10 meters.

Explanation:

Given that,

Force acting on the object, W = F = 490 N

The gravitational potential energy, P = 4900 J

We need to find the height at which the object is moved. We know that the gravitational potential energy is possessed due to its position. It is given by :

$P=mgh\\\\h=\dfrac{P}{mg}\\\\h=\dfrac{4900\ J}{490\ N}\\\\h=10\ m$