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Pie
3 years ago
10

Because of your knowledge of physics and interest in weapons, you've got a summer job with the FBI, your job is to determine if

the weapon that was found at the scene of a crime was precisely the same with which the crime. For this your boss has asked you to determine the speed of exit of the weapon that was in the scene. Design an experiment in detail where you explain the results.
Physics
1 answer:
svp [43]3 years ago
4 0

Answer:

The criminal justice field spans a wide variety of jobs and interests. Criminal justice jobs may involve collecting evidence, analyzing crime scenes, performing investigations or arresting perpetrators.

Federal, state, and local government agencies as well as the private sector provide a wide array of criminal justice jobs. Jobs are found in areas such law enforcement, forensic science, corrections, legal services, homeland security and more.

Some criminal justice careers require a college degree; colleges and universities offer a variety of degrees related to the criminal justice sector, including online degrees. Criminal justice degree jobs cover a wide range of areas.

Our huge list provides a wide variety of jobs including criminal justice entry-level jobs and criminal justice government jobs. The list includes criminal justice salaries and educational requirements.

Explanation:

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A flatbed truck is carrying a 20.0 kg crate along a level road. the coefficient of static friction between the crate and the bed
Dahasolnce [82]
<span>3.92 m/s^2 Assuming that the local gravitational acceleration is 9.8 m/s^2, then the maximum acceleration that the truck can have is the coefficient of static friction multiplied by the local gravitational acceleration, so 0.4 * 9.8 m/s^2 = 3.92 m/s^2 If you want the more complicated answer, the normal force that the crate exerts is it's mass times the local gravitational acceleration, so 20.0 kg * 9.8 m/s^2 = 196 kg*m/s^2 = 196 N Multiply by the coefficient of static friction, giving 196 N * 0.4 = 78.4 N So we need to apply 78.4 N of force to start the crate moving. Let's divide by the crate's mass 78.4 N / 20.0 kg = 78.4 kg*m/s^2 / 20.0 kg = 3.92 m/s^2 And you get the same result.</span>
6 0
3 years ago
A 5kg block is pulled across a table by a horizontal force of 40 N with a frictional force of 8 N opposing the motion. Draw a fo
Taya2010 [7]

Answer:

Net force on the block is 32 N.

Acceleration of the object is 6.4 m/s².

Explanation:

Let the acceleration of the object be a m/s².

Given:

Mass of the block is, m=5\ kg

Force of pull is, F=40\ N

Frictional force on the block is, f=8\ N

The free body diagram of the object is shown below.

From the figure, the net force in the forward direction is given as:

F_{net}=F-f=40-8=32\ N

Now, from Newton's second law of motion, net force is equal to the product of mass and acceleration. So,

F_{net}=ma\\32=5a\\a=\frac{32}{5}=6.4\ m/s^2

Therefore, the acceleration of the object in the forward direction is 6.4 m/s².

3 0
3 years ago
We are running late for school and we want to make our 0.5 kg tea (it’s at 90 C) colder. Let’s assume we can drink tea when it’s
PSYCHO15rus [73]

Answer:

x=0.154kg

Explanation:

(x*L)+(0.5kg*4200*50)+(x*4200*(-50)=0

(x*333 000J/kg*c)+(0.5kg*4200J/kg*C*(-40C))+(x*4200J/kg*C*50C)=0

6 0
2 years ago
Light is an electromagnetic wave and travels at the speed of 3.00 x 10^8 m/s
Over [174]
I think the answer is 2 hope it helps
6 0
3 years ago
A graph shows how the temperature of a substance changes as energy is added steadily over time.
OlgaM077 [116]

Answer:

A flat, horizontal line  

Explanation:

A flat, horizontal line indicates a phase change.

The temperature does not increase because the added heat goes into converting one phase into another.

A is wrong. A downward-sloping line indicates that the temperature is decreasing with time.

C is wrong. An upward-sloping line indicates that the temperature is increasing with time.

8 0
3 years ago
Read 2 more answers
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