4 years ago

1.What is a medulla? What do forensic scientists use this for?

1 answer:

4 0

A medulla is a group of cells that are going through hair, forensic scientist use it to find out the pigment, (color), and the shape.

You might be interested in

2. Michelle bought 15.6 yards of fabric. She used 5.43 yards in her art installation. About what percent of the fabric did she u

photoshop1234 [79]

35%
5.43/15.6
This is how you calculate the percentage the answer is 35%

4 0

3 years ago

What is the acceleration of an object that takes 20 sec to change from a speed of 200 m/s to 300 m/s ?

marin [14]

Given:

initial velocity, u = 200 m/s

Final velocity, v = 300 m/s

Time taken, t = 20 sec

To be calculated:

Calculate the acceleration of given object ?

Formula used:

Acceleration = v - u / t

Solution:

We know that,

Acceleration = v - u / t

☆ Substituting the values in the above formula,we get

Acceleration ⇒ 300 - 200 / 20

⇒ 100/20

⇒ 5 m/s²

5 0

4 years ago

which describes the relationship between the frequency, wavelength, and speed of a wave as the wave travels through diffrent med

Goryan [66]

As speed changes, wavelength changes, and frequency remains the same

5 0

3 years ago

A ball of mass m is found to have a weight Wx on Planet X. Which of the following is a correct expression for the gravitational

Naya [18.7K]

Answer: B. The gravitational field strength of Planet X is Wx/m.

Explanation:

Weight is a force, and as we know by the second Newton's law:

F = m*a

Force equals mass times acceleration.

Then if the weight is:

Wx, and the mass is m, we have the equation:

Wx = m*a

Where in this case, a is the gravitational field strength.

Then, isolating a in that equation we get:

Wx/m = a

Then the correct option is:

B. The gravitational field strength of Planet X is Wx/m.

4 0

3 years ago

What is another unit for momentum besides kg-m/s? a. N b. N-s c. N-s2 d. N/s

lara [203]

'Newton-second' is dimensionally equivalent to 'kilogram-meter/second'.

8 0

3 years ago