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adell [148]
3 years ago
7

Why do experiments need to be repeatable?

Chemistry
2 answers:
Vilka [71]3 years ago
5 0
They need to be repeatable to prove that results from the expirement are viable, that it didn't just happen because of a series of things outside of the scientists control. Repetition just makes the expirement seem more credible. 
maw [93]3 years ago
3 0
If they were not repeatable people would think the experiment is not accurate. If it can be repeated than the data can prove a very valid point. 
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A 12 kg object experiences a net force of 120 N. What acceleration will this object experience?
Ivan

Answer:

<h2>10 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m} \\

f is the force

m is the mass

From the question we have

a =  \frac{120}{12}  \\

We have the final answer as

<h3>10 m/s²</h3>

Hope this helps you

3 0
3 years ago
Peter Quill was on quest to find his kidnapped friend, Gamora. His colleague, Rocket, received an unusual transmission which app
kykrilka [37]
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5 0
3 years ago
Read 2 more answers
before phase change: molecules move around each other 15. The medicine in the diagram above has molecules that are moving around
Likurg_2 [28]

Answer:

89 pills

Explanation:

because it is

8 0
3 years ago
When phosphorus reacts with chlorine, phosphorus trichloride is formed according to the equation
Degger [83]

Answer:

Mass = 38.3 g

Explanation:

Given data:

Mass of Cl₂ required = ?

Mass of phosphorus = 10.6 g

Solution:

Chemical equation:

P₄ + 6Cl₂   →   4PCl₃

Number of moles of P₄:

Number of moles = mass/ molar mass

Number of moles = 10.6 g/123.9 g/mol

Number of moles = 0.09 mol

Now we will compare the moles of P₄ with Cl₂ from balance chemical equation.

               P₄            :            Cl₂

                1             :              6

              0.09        :            6×0.09 = 0.54 mol

Mass of chlorine gas:

Mass = number of moles × molar mass

Mass = 0.54 mol × 70.9 g/mol

Mass = 38.3 g

5 0
3 years ago
Can you guys help me explain these? I will mark brainliest to whoever answers it right oh and this is due tommorow so im rushing
Debora [2.8K]

Answer:

Conduction  

Conduction moves heat through direct sub-atomic crash. A region of more prominent dynamic energy will move nuclear power to a region with lower active energy. Higher-speed particles will crash into more slow speed particles. The more slow speed particles will increment in motor energy subsequently. Conduction is the most widely recognized type of warmth move and happens through actual contact. Models is place your hand against a window or spot metal into an open fire.  

The interaction of warmth conduction relies upon the accompanying components: temperature slope, cross-segment of the material, length of the movement was, and actual material properties. The temperature inclination is the actual amount that portrays the bearing and pace of warmth travel. Temperature stream will consistently happen from most sultry to coldest or, as expressed previously, higher to bring down active energy. Once there's warm harmony between the two temperature contrasts, the warm exchange stops.

Convection  

At the point when a liquid, like air or a fluid, is warmed and afterward ventures from the source, it conveys the nuclear power along. This sort of warmth move is called convection. The liquid over a hot surface grows, turns out to be less thick, and rises.

Radiation

Thermal radiation generates from the emission of electromagnetic waves. These waves carry the energy away from the emitting object. Radiation occurs through a vacuum or any transparent medium (either solid or fluid). Thermal radiation is the direct result of random movements of atoms and molecules in matter. Movement of the charged protons and electrons results in the emission of electromagnetic radiation.

7 0
3 years ago
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