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Marta_Voda [28]

3 years ago

15

Why do you think it is so important that all evidence be identified (such as marking the bullets and tagging firearms)? What con

sequences might result if these procedures were not followed?

1 answer:

igor_vitrenko [27]3 years ago

7 0

You could pet the wrong bullets in the wrong gun

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What is the vertical acceleration of a paper airplane that is launched horizontally with an initial velocity of 2.3 m/s?

mr_godi [17]

Answer:

<em>The vertical acceleration is -9.81 m/s^2</em>

Explanation:

When a body is projected, the body experiences an acceleration in the vertical axis that is proportional to the acceleration due to gravity of the earth, which is equal to 9.81 m/s^2. In this case, the acceleration acts to stop the vertical motion of the paper plane, and hence is a deceleration, which explains the negative vertical acceleration.

8 0

3 years ago

1) If I have 10 A of current running through my series circuit (which has 5

timofeeve [1]

Answer:10 A

Explanation:

According to the KCL (Kirchhoff's current laws)

8 0

3 years ago

An iron rod is :

SashulF [63]

The answer is C because the three metals that are magnetic are iron, nickel, and cobalt, and it is metal so it is a conductor of electricity.

7 0

3 years ago

Stephen throws a 0.46 kg football at a speed of 14 m/s and it goes through the goal posts 2.4 m above where he threw it. What is

Dovator [93]

Answer:
$\\ \\ 0.46 \times 14 {2 }^{2} = 90.16 \\$

5 0

2 years ago

A mass resting on a shelf 10.0 meters above the floor has a gravitational potential energy of 980. joules with respect to the fl

solniwko [45]

Answer:

New potential energy will be 784 J

So option (b) will be correct answer

Explanation:

We have given height of the shelf h = 10 m

Potential energy E = 980 J

Acceleration due to gravity $g=9.8m/sec^2$

We know that potential energy $E=mgh$

So $980=m\times 9.8\times 10$

m = 10 kg

Now new height h = 8 m

So new potential energy $E=mgh=10\times 9.8\times 8=784J$

So option (B) will be the correct answer

5 0

3 years ago

Read 2 more answers