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3 years ago

Which states the purpose of an experiment?

Physics

2 answers:

Whitepunk [10]3 years ago

6 0

B; to produce a hypothesis.

pishuonlain [190]3 years ago

3 0

Your answer will be B To test a hypothesis every time you do a experiment you are testing your hypothesis like how many kernels pop in popcorn you have plain, butter, and extra butter and you think the extra butter will pop more, Also its not D because you have a question that's when you have an experiment its not C because you first have to do the experiment then you have to have a person repeat that experiment then you communicate results when it came down to A, or B I choose B because A you need to have years of research before you can prove a Scientific Law. Your answer is B.

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A capacitor is charged to a potential of 12.0 V and is then connected to a voltmeter having an internal resistance of 3.90 MΩ. A

iren2701 [21]

Explanation:

(a) Formula to calculate the capacitance is as follows.

$V_{c} = V_{o} (e^(\frac{-t}{RC}))$

Now, putting the given values into the above formula as follows.

$V_{c} = V_{o} (e^(\frac{-t}{RC}))$

$3.5 V = 12 V (e^(\frac{-3.50 sec}{3.90 \times C}))$

$e^(\frac{-3.50 sec}{3.90 \times C})$ = 0.291

or, $\frac{-3.50 sec}{3.90 \times C}$ = ln (0.291)

$\frac{-3.50 sec}{3.90 \times C}$ = -1.23

C = 0.729 F

Hence, the value of capacitance is 0.729 F.

(b) Formula to calculate the constant of circuit is as follows.

T = $R \times C$

= $3.1 \times 0.729$

= 2.259 sec

Therefore, the time constant of the circuit is 2.259 sec.

5 0

4 years ago

ANSWER QUICK 30 POINTS

labwork [276]

Answer:

Gravity controls the movement of the planets around the sun, holds together stars grouped in galaxies, and galaxies grouped in clusters. The Universal Law of Gravitation depends on two things. First it depends on mass of each object and the second factor is the distance between two objects. If the mass of one object is Larger, the gravitational pull towards it will be larger and the smaller distance, the larger the gravitational pull will be between the objects. Therefore the Larger planets have more moon and the inner planets have less.

Explanation:

6 0

3 years ago

light waves are first transmitted through the ________ at the front of the eye and enter an opening called the ________ before s

viva [34]

The transmission of light waves is usually done through cornea of the eyes, then move through another opening which is regarded as pupil before it will get to the retina.

Light waves can be regarded as moving energy which contains microscopic particles known as photons.

The vision of the eye can be completed through the light wave passing through the components of the eyes and this process goes thus;

Light will move through the (cornea) which is situated at the front area of the eyes into lens.

Then both the cornea and the lens give room for the focusing of the light rays to the retina which is situated at the back of the eye .

Then through the help of the cells in the retina, the light will be absorbed and then be converted to electrochemical impulses and then transfer it to the brain as well as optic nerve.

Therefore, light wave are form of tiny microscopic particles.

brainly.com/question/19734585?referrer=searchResults

8 0

3 years ago

Mathematically, explain how a car (A) with mass of 500 kg and velocity of 2 m/s has the same kinetic energy as a car (B) with ma

scoray [572]

Answer:

<em>Both kinetic energies are equal</em>

Explanation:

<u>Kinetic Energy </u>

Is the type of energy of an object due to its state of motion. It's proportional to the mass and the square of the speed.

The equation for the kinetic energy is: