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stich3 [128]
4 years ago
14

Which material can best be used to cast a footwear or tire impression?

Chemistry
1 answer:
mixer [17]4 years ago
5 0

Answer:

B.) cement

Explanation:

The commonest types of impression evidence found in crime scenes include footprints, tire tracks, bite marks and tool marks etc.These types of impression evidence can be used by crime scene investigators to link the suspects to the crime.

The impressions are usually cast using gypsum cement and other forms of casting tools to preserve the evidence and make it useful during any period in the course of the investigation.

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An atom has 1 proton, 2 neutrons, and 1 electrons. What is the atomic number of the atom?
RideAnS [48]

Atomic number = No. of proton = 1

so, your answer is 1

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3 years ago
A community in Texas broadcasts public service announcements on tornado safety right before spring. Why is this the most effecti
kvv77 [185]

Answer:

the answer is d.

Explanation:

usually when there is a great variance in storm fronts, the cooler atmosphere and warmer weather on land collide to create more storms...hence tornados, etc....

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3 years ago
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In 1887, Albert A. Michelson and Edward W. Morley conducted an experiment to measure the speed at which the Earth moves through
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3 years ago
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How many electrons flow through a point in a wire in 3.00 s if there is a constant current of i=4.00a ?
MaRussiya [10]

7.5 × 10¹⁹ Electrons flow through a point in a wire in 3.00 s if there is a constant current of i=4.00a.

Q = I × t------------Equation 1

Where Q = charge flowing through the wire, I = current, t = time

Given: I = 4.00 A, t = 3.00 s

Substitute these values into equation 1

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Q = 12.00 C.

But,

1 electron contains 1.6×10⁻¹⁹ C

therefore,

12.00 C = 12.00/1.6×10⁻¹⁹  electrons

= 7.5 × 10¹⁹ Electrons

To learn more about flow of electrons: brainly.com/question/14805255

#SPJ4

4 0
2 years ago
David says, "Pure honey has nothing else added." Susan says ,"The honey is not really pure. It is mixture of many subsatnces . W
Olenka [21]
Really, both David and Susan are right; they were using the term "pure" in different ways. David likely meant "pure honey" in the sense that the honey was not altered or had any additives. Susan used pure as in a "pure substance" in chemistry. Susan is also right, because honey is a medley of carbohydrates, proteins, amino acids, and vitamins and minerals. Chemically, honey is not a pure substance- it's a mixture.
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3 years ago
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