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drek231 [11]
3 years ago
9

A hit-and-run incident is one of the more common cases for paint evidence. true or false

Physics
1 answer:
AleksandrR [38]3 years ago
4 0
The statement "<span>A hit-and-run incident is one of the more common cases for paint evidence." is true.  This is shown by a</span><span> spot close to the point of impact, but in a place that has not been damaged.</span>
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What was Robert Boyle's most famous discovery about gases​?
stellarik [79]

Answer:

The inverse(opposite) relationship between absolute pressure and the volume of a gas. This is known as Boyle's law.

Explanation:

The temperature must be kept the same in a closed system.

4 0
3 years ago
Describe how light is used in modern forms of communication.
Kobotan [32]

Answer:Visible light communication (VLC) is a wireless method that uses light emitted by LEDs to deliver networked, mobile, high-speed communication similar to Wi-Fi, leading to the term Li-Fi. It can be used as standalone solution or in a supplementary role to radio-frequency (RF) or cellular network communication

Explanation:

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3 years ago
What properties of Pluto might make scientists think that it is a Kuiper Belt Object?
Nataliya [291]
It is the smallest planet with a bluish color that can probably make it look like a comet
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3 years ago
Which of these properties of an object best quantifies its inertia: velocity, acceleration, volume, mass, or temperature?
LuckyWell [14K]

Answer:

Mass

Explanation:

Inertia is essentially an object's tendency to stay in motion or at rest unless it is forced to do otherwise (pun intended). It only makes sense to me that mass would best quantify an object's inertia, because an object with more mass would be harder to move and/or stop from moving.

3 0
3 years ago
A father racing his son has 1/3 the kinetic energy of the son, who has 1/4 the mass of the father. The father speeds up by 1.5 m
Feliz [49]

Explanation:

Let the speeds of father and son are v_f\ and\ v_s. The kinetic energies of father and son are K_f\ and\ K_s. The mass of father and son are  m_f\ and\ m_s

(a) According to given conditions, K_f=\dfrac{1}{3}K_s

And m_s=\dfrac{1}{4}m_f

Kinetic energy of father is given by :

K_f=\dfrac{1}{2}m_fv_f^2.............(1)

Kinetic energy of son is given by :

K_s=\dfrac{1}{2}m_sv_s^2...........(2)

From equation (1), (2) we get :

\dfrac{v_f^2}{v_s^2}=\dfrac{1}{12}..............(3)

If the speed of father is speed up by 1.5 m/s, so the ratio of kinetic energies is given by :

\dfrac{K_f}{K_s}=\dfrac{1/2m_f(v_f+1.5)^2}{1/2m_sv_s^2}

v_s^2=4(v_f+1.5)^2

Using equation (3) in above equation, we get :

v_f=\dfrac{1.5}{\sqrt3-1}=2.04\ m/s

(b) Put the value of v_f in equation (3) as :

v_s=7.09\ m/s

Hence, this is the required solution.

8 0
3 years ago
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