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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 "A hit-and-run incident is one of the more common cases for paint evidence." is true. This is shown by a spot close to the point of impact, but in a place that has not been damaged.

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N a scientific investigation, what is the name for a prediction that can be tested?

ELEN [110]

A hypothesis is an educated prediction that can be tested.

8 0

4 years ago

What is it called cavity left behind in the rock after an organism's hard part has dissolved.

Lapatulllka [165]

Mold

Explanation:

A mold is a cavity that is left behind in the rock after an organism hard part has been dissolved. These are important fossils that useful in relative dating.

Some hard parts of organism are preserved in form of molds in soft sediments.
The outline and important details of the hard part is preserved when the mold dissolves away.
Fossil molds are representative on the internal outline of the hard parts of organisms.
They are usually recognized as a part of body fossil in a section.

learn more:

Fossils brainly.com/question/7382392

#learnwithBrainly

5 0

3 years ago

Two cars are traveling on a desert road. After 5.0 seconds they are side by side at the next telephone pole.The distance between

stira [4]

The question looks incomplete, but according to the information given above seem like they have identical journeys.
a. the displacement of car A - 65.5 m
b. the displacement of car B - 65.5 m
c. average velociry of A $65.5 / 5 = 13.1 m/s$
d. the average velocity of car B has the same.

8 0

3 years ago

) Force F = − + ( 8.00 N i 6.00 N j ) ( ) acts on a particle with position vector r = + (3.00 m i 4.00 m j ) ( ) . What are (a)

natali 33 [55]

To develop this problem it is necessary to apply the concepts related to the Cross Product of two vectors as well as to obtain the angle through the magnitude of the angles.

The vector product between the Force and the radius allows us to obtain the torque, in this way,

$\tau = \vec{F} \times \vec{r}$

$\tau = (8i+6j)\times(-3i+4j)$

$\tau = (8*4)(i\times j)+(6*-3)(j\times i)$

$\tau = 32k +18k$

$\tau = 50 k$

Therefore the torque on the particle about the origen is 50k

PART B) To find the angle between two vectors we apply the definition of the dot product based on the vector quantities, that is,

$cos\theta = \frac{r\cdot F}{|\vec{r}|*|\vec{F}|}$

$cos\theta = \frac{(8*-3)+(4*3)}{\sqrt{(-3)^2+4^2}*\sqrt{8^2+6^2}}$

$cos\theta = -0.24$

$\theta = cos^{-1} (-0.24)$

$\theta = 103.88\°$

Therefore the angle between the ratio and the force is 103.88°

5 0

3 years ago

How do Ohm's Law relate current, voltage difference, and resistance?

Snowcat [4.5K]

The relationship between voltage, current, and resistance is described by Ohm's law. The equation, i = v/r, tells us that the current, i, flowing through a circuit is directly proportional to the voltage, v, and inversely proportional to the resistance, r.

6 0

3 years ago