1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kykrilka [37]
3 years ago
13

A murder victim is found slumped over his desk in his office. The bullet that killed him is found lodged in his chair. Investiga

tors find footprints in the carpet and gather traces of silica used to make concrete from the footprints. Their prime suspect is a construction supervisor who recently had an argument with the victim. The suspect's construction firm regularly uses a brand of concrete with high concentrations of silica. On the victim's desk is a threatening letter from the suspect regarding a disagreement between them. The suspect's fingerprints are found on the letter. Which of these pieces of evidence is showing a class characteristic?
A. The fingerprints on the letter belonging to the suspect
B. The silica in the carpet being like the concrete that the suspect's company uses
C. The victim being killed with his own gun
D. The suspect being angry enough with the victim to threaten him
Physics
1 answer:
otez555 [7]3 years ago
3 0
It’s b because I had the question
You might be interested in
How are adhesion and cohesion similar? how are they different?
hichkok12 [17]
<span> they're both properties of water. both involve the "sticking" property of H2O .</span><span> cohesion is "sticking" together (water sticking to water) and adhesios is water</span><span>
</span> "sticking" to something else. They are both important to life processes.

 <span>In chemistry, adhesion refers to the tendency of unlike molecules to bond with one another, while cohesion refers to the attractive force between molecules of the same type. Surface tension, which is an essential property of water, illustrates the relationship between adhesion and cohesion.</span>
4 0
3 years ago
A charge +q is located at the origin, while an identical charge is located on the x axis at x = +0.57 m. A third charge of +2q i
Jlenok [28]

Answer:

The third charge placed is 0.80 m.

Explanation:

Given that,

Distance = 0.57 m

First charge = q

Third charge = 2q

We need to calculate the electrostatic force on charge q₁ due to q₂

Using formula of electrostatic force

F_{21}=\dfrac{kq_{1}q_{2}}{r_{1}^2}

When placed another charge q₃ at certain distance from origin, then the net force on charge q₁ due to both charges is

F_{net}=F_{21}+F_{31}

The net electrostatic force on the charge at the origin doubles.

2F_{21}=F_{21}+F_{31}

F_{31}=F_{21}

\dfrac{kq_{3}q_{1}}{r_{2}^2}=\dfrac{kq_{2}q_{1}}{r_{1}^2}

\dfrac{q_{3}}{r_{2}^2}=\dfrac{q_{2}}{r_{1}^2}

r_{2}^2=\dfrac{q_{3}}{q_{2}\timesr_{1}^2}

r_{2}=\sqrt{\dfrac{q_{3}}{q_{2}}}r_{1}

Put the value into the formula

r_{2}=\sqrt{\dfrac{2q}{q}}\times0.57

r_{2}=\sqrt{2}\times0.57

r_{2}=0.80\ m

Hence, The third charge placed is 0.80 m from origin in x-axis.

4 0
3 years ago
Boy A and Boy B are pulling on a rope. If the rope is not moving toward either boy, identify two balanced forces involving the r
natima [27]

Answer:

Hey

The rope isn't moving because each boy is pulling with the same force on opposite ends. That being said the bot pulling force is balanced.

Inside the rope are molecules connecting the whole thing together. The force they exert on each other must be equal because they aren't moving but are still exerting forces

7 0
3 years ago
How do human break N2 into a useable form
Fiesta28 [93]
A process known as fixation<span>. the majority of nitrogen is fixed by </span>bacteria<span>, most of which are </span>symbiotic<span> with plants</span>


<span />
6 0
4 years ago
The moon has a smaller mass than the Earth. If you were able to travel to the moon your weight would
Lelu [443]

Answer:

for example, a person weighing 100kg when on the moon only has 38kg is not wrong because the scale is just a device to measure weight, not mass, people have taken advantage of gravity to measure the weight of objects, so I think Your actual weight doesn't change, what changes is gravity and acceleration

Explanation:

3 0
3 years ago
Other questions:
  • A particle is moving with a constant speed of 25 m/s in 90 m radius circle what is the angular speed in radian per second about
    9·1 answer
  • If you fall and skid to a stop on a carpeted floor, you can get a rug burn. Much of this discomfort comes from abrasion,but ther
    8·1 answer
  • The reactants for a certain chemical reaction are shown. Cu(NO3)2 + NaOH → Which of the following shows the correct product or p
    9·1 answer
  • Describe how does the temperature relate to density and the movement of atmospheric gases? A) As the air warms expanding its vol
    7·1 answer
  • What are the minimum requirements for airplane operations under special VFR in Class D airspace at night?
    7·1 answer
  • A person exerts a 14-N force on a cart attached to a spring and holds the cart steady. The cart is displaced 0.060 m from its eq
    7·1 answer
  • Find the acceleration of the block.
    7·1 answer
  • PLEASE ANSWER QUICKLY!!!! 2L nitrogen gas at 100 kpa of pressure​
    7·1 answer
  • What is Absolute Zero on all 3 temperature scales? <br>F=<br>C= <br>K=​
    9·1 answer
  • 2. An object is moving with an initial velocity of 12 m/s. It accelerates at a rate of 1.5 m/s^2 over a distance of 40 m. What i
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!