3 years ago

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

1 answer:

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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Rebecca jogs in place for two minutes before her track meet. Rebecca weighs 100 pounds. Which of the following statements is tru

MrRissso [65]

The answer is A because it was 2 minutes and she weighs 100 lbs.... so 2(100)=200.... 200 lbs of work

7 0

3 years ago

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A professor sits at rest on a stool that can rotate without friction. The rotational inertia of the professor-stool system is 4.

Anestetic [448]

Answer:

$\omega=0.37 [rad/s]$

Explanation:

We can use the conservation of the angular momentum.

$L=mvR$

$I\omega=mvR$

Now the Inertia is I(professor_stool) plus mR², that is the momentum inertia of a hoop about central axis.

So we will have:

$(I_{proffesor - stool}+mR^{2})\omega=mvR$

Now, we just need to solve it for ω.

$\omega=\frac{mvR}{I_{proffesor-stool}+mR^{2}}$

$\omega=\frac{1.5*2.7*0.4}{4.1+1.5*0.4^{2}}$

$\omega=0.37 [rad/s]$

I hope it helps you!

5 0

4 years ago

On a smooth horizontal floor an object

lukranit [14]

Answer:

what do you mean by this?

Explanation:

7 0

3 years ago

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A spherical shell has inner radius 1.5 m, outer radius 2.5 m, and mass 850 kg, distributed uniformly throughout the shell. What

Nimfa-mama [501]

Answer:

The magnitude of the gravitational force is 4.53 * 10 ^-7 N

Explanation:

Given that the magnitude of the gravitational force is F = GMm/r²

mass M = 850 kg

mass m = 2.0 kg

distance d = 1.0 m , r = 0.5 m

F = GMm/r²

Gravitational Constant G = 6.67 × 10^-11 Newtons kg-2 m2.

F = (6.67 × 10^-11 * 850 * 2)/0.5²

F = 0.00000045356 N

F = 4.53 * 10 ^-7 N

3 0

3 years ago

Iron + Hydrochloric acid --> ?

marusya05 [52]

<h3>Hydrochloric Acid- HCl</h3>

<h2><u>Solution</u></h2>

$\bold{Fe +2HCl \rightarrow FeCl _{}{ \tiny2} + H{ \tiny{2}}}$

$\therefore \bold{\fbox{{Balanced}}}$

Iron + Hydrochloric Acid $\rightarrow$ Ferrous Chloride + Hydrogen

<h2>Hope This Helps You ❤️</h2>

8 0

3 years ago

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