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3 years ago

Which of the following is not part of testing a hypothesis?

2 answers:

Natasha2012 [34]3 years ago

3 0

Isn't a hypothesis making a theory? Based on that I guess the answer would be A. Making a theory, because you making the hypothesis is not part of testing it.

Rasek [7]3 years ago

3 0

Answer:

C. Gathering evidence

Explanation:

The first step in hypothesis testing is the making or formulation of theory which refers to a set of accepted beliefs held to guide and explain analysis.

The next step is to make a model from the theory. A model is a simplification of a complex reality.

The next step to collect data to used in estimating the model

After data collection, the model is estimated using the data and result is obtained and analysed.

Therefore, C. Gathering evidence is not part of testing a hypothesis.

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How much work is required to stop an electron (m = 9.11 \times 10^ - 31 kg) which is moving with a speed of 2.10

Karo-lina-s [1.5K]

Answer:

$-2.00876\times 10^{-18}\ J$

Explanation:

v = Speed of electron = $2.1\times 10^6\ m/s$ (generally the order of magnitude is 6)

m = Mass of electron = $9.11\times 10^{-31}\ kg$

Work done would be done by

$W=K_i-K_f\\\Rightarrow W=0-\dfrac{1}{2}mv^2\\\Rightarrow W=0-\dfrac{1}{2}\times 9.11\times 10^{-31}\times (2.1\times 10^6)^2\\\Rightarrow W=-2.00876\times 10^{-18}\ J$

The work required to stop the electron is $-2.00876\times 10^{-18}\ J$

6 0

2 years ago

Your friend just challenged you to a race through an obstacle course. You know in order to beat him, you must run 30 meters with

seropon [69]

Answer:

Velocity = 0.5 m/s South (A)

Explanation:

You need to determine the average rate of velocity.

The equation you will use is velocity = displacement/time

The displacement is 30m South.

The time is 60 seconds.

Plug into the equation Velocity = 30m South/60 s

Velocity = 0.5 m/s South

3 0

2 years ago

Wondering if you have enough rope to rappel to the ground, you drop a rock off the top, and hear the sound of it hitting the bot

miskamm [114]

Answer:

86.5 m

Explanation:

$s = ut + \frac{1}{2} at {}^{2} \\ s = (0)(4.2) + \frac{1}{2} (9.81)(4.2) {}^{2} \\ s = 86.5m$

4 0

2 years ago

Read 2 more answers

if your vehicle begins to slide or skid in the rear, you should? group of answer choices press the gas pedal and speed up. steer

MariettaO [177]

if your vehicle begins to slide or skid in the rear, you should steer in the direction that the rear is sliding to.

<h3>What should you do if the rear end of the vehicle starts to slide or skid?</h3>

In the case above, a person need to Look as well as steer in the direction that the person want the front of the vehicle to go.

Note that in the case above;

Do stay way from the brake pedal and never apply the brakes.

Steer in the the same direction as the rear of the vehicle that is known to be sliding. This will give room for the vehicle to go straight instead of going sideways.
Then make sure to get ready to steer in the opposite direction if the vehicle is one that begins swerving in the other direction.

Therefore, if your vehicle begins to slide or skid in the rear, you should steer in the direction that the rear is sliding to.

Learn more about slide or skid from

brainly.com/question/2148046

#SPJ1

7 0

8 months ago

Where does friction oppose motion in a roller coaster car

Ksju [112]

In roller coasters, friction is a force that opposes motion and significantly slows the cars as they move on the track.<span> While it is easy to believe that friction is bad for the ride, it is one of the forces engineers consider in ensuring passengers have a safe ride</span>

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2 years ago