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3 years ago

What is the purpose of experimentation in a research study

2 answers:

6 0

Hello,

The answer is to "prove your hypothesis".

Reason:

Researchers do experiments to prove there hypothesis they will most likely do the experiment a few times in older to have the conclusion valid therefore proving his or her experiment.

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

natulia [17]3 years ago

3 0

Answer:

The answer is Demonstrate that the hypothesis made by the scientist is correct.

Explanation:

In a scientific method, several steps must be followed to carry out an investigation. First, it begins with an observation of environmental events, then it goes on to give an introduction of what has been observed, questions are generated and a hypothesis is derived. This hypothesis must be experienced obligatorily so that later, when proven, it can be known whether the hypothesis derived by the scientist is correct or not; If it is correct, conclusions are drawn, and if it is incorrect, a new hypothesis is proposed.

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The student toses a ball into the air and then watches the ball fall back down to earth. When does the ball have the most potent

pishuonlain [190]

Answer:

when the ball is at its highest in the air.

Explanation:

I don't know for sure, but when the ball is in the air it has potential energy to fall(or something like that).

6 0

3 years ago

Help me do this question

Zepler [3.9K]

Answer:

c20800

Explanation:

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3 0

3 years ago

An experiment is conducted using 2 plants to determine if the amount of sunlight they receive affects how fast they grow. Which

Phantasy [73]

Greetings!

The correct answer choice is Choice 4.

Why?

In a scientific experiment the only thing being changed is the independent variable. Everything else should stay the same.

In this experiment, the independent variable is the amount of sunlight each plant should receive. Here's a tip- when looking for and independent variable look for whats being changed on purpose.

Hope this helps!

~Fluerie

4 0

3 years ago

A block weighing 400 kg rests on a horizontal surface and supports on top of it ,another block of weight 100 kg which is attache

Paladinen [302]

Answer:

$F_a=1470\ N$

Explanation:

Friction Force

When objects are in contact with other objects or rough surfaces, the friction forces appear when we try to move them with respect to each other. The friction forces always have a direction opposite to the intended motion, i.e. if the object is pushed to the right, the friction force is exerted to the left.

There are two blocks, one of 400 kg on a horizontal surface and other of 100 kg on top of it tied to a vertical wall by a string. If we try to push the first block, it will not move freely, because two friction forces appear: one exerted by the surface and the other exerted by the contact between both blocks. Let's call them Fr1 and Fr2 respectively. The block 2 is attached to the wall by a string, so it won't simply move with the block 1.

Please find the free body diagrams in the figure provided below.

The equilibrium condition for the mass 1 is

$\displaystyle F_a-F_{r1}-F_{r2}=m.a=0$

The mass m1 is being pushed by the force Fa so that slipping with the mass m2 barely occurs, thus the system is not moving, and a=0. Solving for Fa

$\displaystyle F_a=F_{r1}+F_{r2}.....[1]$

The mass 2 is tried to be pushed to the right by the friction force Fr2 between them, but the string keeps it fixed in position with the tension T. The equation in the horizontal axis is

$\displaystyle F_{r2}-T=0$