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
QveST [7]
3 years ago
5

Why is a shoe considered individual evidence

Physics
1 answer:
Advocard [28]3 years ago
7 0
Footprints and tireprints

As shoes and tires are used, individual characteristics such as nicks, cuts, and wear patterns develop. These characteristics may show up in prints and impressions and can be compared with a suspect's shoes or tires.
You might be interested in
Why do we use microwaves to communicate berween earth and satellites
nlexa [21]
It’s frequency is high and microwaves can pass through the atmosphere of the Earth.
7 0
3 years ago
Read 2 more answers
Light of wavelength 597 nm falls on a double slit, and the first bright fringe of the interference pattern is seen at an angle o
Kazeer [188]

Answer:

2.2 µm

Explanation:

For constructive interference, the expression is:

d\times sin\theta=m\times \lambda

Where, m = 1, 2, .....

d is the distance between the slits.

Given wavelength = 597 nm

Angle, \theta  = 15.8°

First bright fringe means , m = 1

So,

d\times sin\ 15.8^0=1\times \597\ nm

d\times 0.2723=1\times \597\ nm

d=2192.43481\ nm

Also,

1 nm = 10⁻⁹ m

1 µm = 10⁻⁶ m

So,

1 nm = 10⁻³ nm

Thus,

<u>Distance between slits ≅ 2.2 µm</u>

8 0
3 years ago
Read 2 more answers
What must be the units for the gravitational constant G in order for gravitational force to have units of newtons?
babunello [35]

Answer:

m³/(kg⋅s²)

Explanation:

Hello.

In this case, since the involved formula is:

F=G*\frac{m_1m_2}{r^2}

By writing a dimensional analysis with the proper algebra handling, we obtain:

N[=]G*\frac{kg*kg}{m^2}\\ \\kg*\frac{m}{s^2}[=]G *\frac{kg*kg}{m^2}\\\\G[=]\frac{kg*m*m^2}{kg^2*s^2}\\ \\G[=]\frac{m^3}{kg*s^2}

Thus, answer is:

m³/(kg⋅s²)

Note that the [=] is used to indicate the units of G.

Best regards

4 0
2 years ago
Until 1883, every city and town in the United States kept its own local time. Today, travelers reset their watches only when the
inna [77]

Answer:

135° (degrees)

Explanation:

The Earth rotates 360° in about 24 h

How many degrees in 1 hour

360^{\circ}=24\ h\\\Rightarrow 1\ h=\frac{360}{24}\\\Rightarrow 1\ h=15^{\circ}

So, in 1 hour the Earth rotates 15 degrees. This means that a person would have to reset their watch by 1 hour after travelling 15 degrees

In 9 hours

9\ h=9\times 15^{\circ}=135^{\circ}\\\Rightarrow 9\ h=135^{\circ}

So, a person would have to travel 135 degrees in order to reset their watch by 9 hours.

7 0
3 years ago
A truck on a straight road starts from rest and accelerates at 1.4 m/s 2 until it reaches a speed of 22 m/s. Then the truck trav
Zolol [24]

Answer:

42.11 sec

Explanation:

In first part : The truck start from the rest that is u = 0 m/sec

Acceleration is given as a=1.4m/sec^2

It reaches to a velocity of 22 m/sec so v=22 m/sec

Now according to first law of motion v=u+at

22=0+1.4\times t

t=15.71sec

In second part : The truck maintain a constant speed for 22 sec

In third  part : The truck takes an additional 4.4 sec for stopping

So total time in which the truck is in motion =15.71+22+4.4=42.11 sec

3 0
3 years ago
Other questions:
  • A black, totally absorbing piece of cardboard of area a = 2.1 cm2 intercepts light with an intensity of 8.8 w/m2 from a camera s
    14·1 answer
  • psychology chapter 7, principles of learning; I am the process whereby animals are taught a complicated response by being reward
    10·1 answer
  • Difference between weightlessness in space and weightlessness in earth​
    9·1 answer
  • A small metal block with mass of 140 g sits on a horizontally rotating turntable. The turntable makes exactly 2 revolutions each
    15·1 answer
  • A ball is ejected to the right with an unknown horizontal velocity from the top of a pillar that is 50 meters in height. At the
    15·2 answers
  • 1. A car begins at a speed of 3 m/s and accelerates at 2 m/s2
    6·1 answer
  • Explain why steel is mor dense than water
    6·2 answers
  • 2. In any energy transformation, energy is _____. A created B conserved C destroyed
    9·1 answer
  • A wave can be best defined as <br><br> P.S pls help
    13·1 answer
  • 5. Calculate the area if the force is 368N and the pressure is 28Pa..
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!