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Triss [41]
4 years ago
14

What is Precambrian time?

Physics
1 answer:
Ilia_Sergeevich [38]4 years ago
3 0

Answer:

The Precambrian Era comprises all of geologic time prior to 600 million years ago. The Precambrian was originally defined as the era that predated the emergence of life in the Cambrian Period.

Explanation:

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When evaluating data, why is it better to make a graph instead of just looking at the raw data in a table?
Mila [183]

Since tables display only numerical values, it can be difficult to spot trends by looking at a data table. It is easier to identify trends and relationships in the data by using graphs.

7 0
3 years ago
TRUE OR FALSE : Boyle’s law states that, as the pressure of a gas increases, the volume decreases.
White raven [17]

True, but only if the temperature of the gas doesn't change ...
which is pretty hard to manage when you're compressing it.

I think Boyle's law actually says something like

       (pressure) x (volume) / (temperature)  =  constant.

So you can see that if you want to say anything about two of the
quantities, you always have to stipulate that the statement is true
as long as the third one doesn't change.


6 0
3 years ago
Read 2 more answers
An object with charge -4.0μC is placed between a positively charged object to the
elena-s [515]

The net force on the -4.0μC object as a result of this net field will be -10.4 N.

<h3>What is the charge?</h3>

The matter has an electric charge when it is exposed to an electromagnetic field is known as a charge.

The electric field intensity is found as the force per unit charge.

Electric field intensity on the positive charge:

\rm E_1 = \frac{F_1}{Q} \\\\\ \rm   1.2 N/C = \frac{F_1}{ -4.0 \mu C} \\\\ F_1 =   - 4.8 \ N

Electric field intensity on the negative charge:

\rm E_2 = \frac{F_2}{Q} \\\\\ \rm   1.4 \ N/C = \frac{F_1}{ -4.0 \mu C} \\\\ F_2 =  - 5.6 \ N

The net charge is the algebraic sum of the two charges;

\rm F_{net}=F_1+F_2 \\\\ F_{net}= -4.8 -5.6 \\\\ F_{net}=-10.4 \ N

Hence, as a result of this net field, the net force on the -4.0C object will be -10.4 N.

To learn more about the charge refer to the link;

brainly.com/question/24391667

#SPJ1

4 0
2 years ago
- A particular light source gives off light waves with a measured wavelength of
skad [1K]

Answer:

f = 1.5 x 10¹⁵ Hz

Explanation:

Light is an electromagnetic wave and we know that the speed of light is a constant which is 

3 x 10⁸ m/s.

Knowing this; v = λ x f

λ = wavelength

f= frequency of light

v = seed of light

f = v/λ

f =  3 x 10⁸m/s / 2.0 x 10-⁷ m

f = 1.5 x 10¹⁵ Hz

8 0
2 years ago
The process by which a gas changes to a solid is
ddd [48]

The correct answer to the question is - Deposition i.e the process by which a gas changes to a solid is called deposition.

EXPLANATION:

There are various thermal processes of state or phase change in which matter in one state is converted into matter in another state.

Deposition is the type of thermodynamic process of state or phase change in which a gaseous substance is directly converted into corresponding solid substance without entering into liquid phase.

During this process, the loss of thermal energy from gas is very fast. Hence, the gas directly enters solid phase without undergoing into liquid phase.

This process is just the opposite process of sublimation where a solid is converted into gas directly. That's why this process is also known as desublimation.

For instance, conversion of water vapor into ice.

6 0
4 years ago
Read 2 more answers
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