All categories

4 years ago

Which of the following is important if an organism becomes a fossil

Physics

1 answer:

Vilka [71]4 years ago

3 0

I'd be happy to help you, however, there are no answer choices.

You might be interested in

Grain is pouring into a silo to be stored for later use. Due to the friction between pieces of grain as they rub against each ot

jolli1 [7]

Answer:

The electric force between them if the pieces of grain are 2 cm apart is $3.15\times 10^{-11}\textrm{ N}$ .

Explanation:

Given:

Charge on one grain, $Q_{1}=6\times 10^{-10}\textrm{ C}$

Charge on another grain, $Q_{2}=2.3\times 10^{-15}\textrm{ C}$

Separation between them, $d=2\textrm{ cm}=0.02\textrm{ m}$

Electric force acting between two charges $Q_{1}\textrm{ and }Q_{2}$ separated by a distance $d$ is given as:

$F_{elec}=\frac{kQ_{1}Q_{2}}{d^2}$

Where, $k$ is Coulomb's constant equal to $9\times 10^9\textrm{ }Nm^2/C^2$ .

Now, plug in all the values and solve for $F{elec}$ .

$F{elec}=\frac{9\times 10^9\times 6.0\times 10^{-10}\times 2.3\times 10^{-15}}{(0.02)^2}\\\\F_{elec}=3.15\times 10^{-11}\textrm{ N}$

Therefore, the electric force between them if the pieces of grain are 2 cm apart is $3.15\times 10^{-11}\textrm{ N}$ .

3 0

3 years ago

Light of wavelength 550nm in air is found to travel at 1.96

Sedaia [141]

Answer:

ν = 5.45 x 10¹⁴ Hz

Explanation:

given,

wavelength of light = 550 nm

= 550 x 10⁻⁹ m

speed of light = 1.96 x 10⁸ m/s

speed of sound = 3 x 10⁸ m/s

frequency of the light = ?

we know.

$v = \nu \lambda$

frequency of the light in the liquid is same as the frequency of the light in the air.

ν is the frequency of light

$\nu = \dfrac{v}{\lambda}$

$\nu = \dfrac{3\times 10^{8}}{550\times 10^{-9}}$

ν = 5.45 x 10¹⁴ Hz

Hence, the frequency of light in the liquid is equal to ν = 5.45 x 10¹⁴ Hz

8 0

4 years ago

All the colors of the rainbow are hiding where?

Charra [1.4K]

They're not hiding anywhere. They're all right there in the light that's shining into the mist.

It's just that when ALL the colors shine into your eye at the same time, your brain says "white".

I have a question: By any chance, do you have a sister Shifra ?

3 0

3 years ago

Rita places a 2.5 kg block on a frictionless inclined plane that is 30 degrees above horizontal. She applies a horizontal force,

vitfil [10]

Answer:

14.2

Explanation:

find horizontal force of the weight = 2.5kg x 9.8 Sin30 = 12.3 N

to prevent the sliding she needs to pull horizontally

Fh = 12.3 /Cos 30 =14.2N

7 0

3 years ago

In the diagram to the left, A man pushes two creates, each with mass 50 kg. To the right with a force of 200 N. How fast will th

Alekssandra [29.7K]

Answer:

sorry no diagram is comin' in my phone

3 0

4 years ago