Ask question

Ask question

All categories

3 years ago

14

I NEED HELP!!!!! CAN SOMEONE PLEASE HELP ME?

1 answer:

Margaret [11]3 years ago

7 0

<span>Because meteorites & the parent asteroids and meteoroids from which they come represent the primordial material from which Earth was formed. All the past material from which the planet first formed, so to find samples of the source material we turn to meteorites. thats for the first question</span>

You might be interested in

The diagram shows a skydiver at different points of her jump. At what point would her

8_murik_8 [283]

I’m pretty sure it’s B! :)

6 0

2 years ago

A bird takes off from the tree and after 5 s is flying at a speed of 10 m/s. Calculate

Volgvan

Answer:

10miles/second

Explanation:

Change in velocity of the bird is expressed as the difference between the final velocity and initial velocity of the body.

Change in velocity = Final velocity - initial velocity

Since the bird takes off from the tree, the initial velocity of the bird = 0miles/sec

Final velocity = 10miles/secs

Change in velocity = 10-0

Change in velocity = 10miles/second

6 0

2 years ago

What do the three variables (f,m, a) in the equation mean?

Anna [14]

Answer:

f=force m=mass and a=acceleration

7 0

3 years ago

What's the frequency of a wave with a wavelength of 10 and velocity of 200m/s?

uranmaximum [27]

Answer:

$\boxed {\boxed {\sf 20 \ Hz}}$

Explanation:

The frequency of a wave can be found using the following formula.

$f=\frac{v}{\lambda}$

where <em>f</em> is the frequency, <em>v</em> is the velocity/wave speed, and λ is the wavelength.

The wavelength is 10 meters and the velocity is 200 meters per second.

1 m/s can also be written as 1 m*s^-1

Therefore:

$v= 200 \ m*s^{-1} \\\lambda = 10 \ m$

Substitute the values into the formula.

$f=\frac{200 \ m*s^{-1}}{10 \ m}$

Divide and note that the meters (m) will cancel each other out.

$f=\frac{200 \ s^{-1}}{10 \ }$

$f=20 \ s^{-1}$

1 s^-1 is equal to Hertz
Therefore, our answer of 20 s^-1 is equal to 20 Hz

$f= 20 \ Hz$

The frequency of the wave is <u>20 Hertz</u>

7 0

2 years ago

Which of these scientists had the greatest contribution to early microscopy?

attashe74 [19]

Answer:

b

Explanation:

I think im not really sure tho

7 0

3 years ago

Read 2 more answers