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ale4655 [162]
3 years ago
12

An organized set of investigation procedures is called a

Physics
1 answer:
Oduvanchick [21]3 years ago
7 0

Answer:

An organized set of investigation procedures is called a scientific method.

There are five steps of the scientific method for an experiment.

Step 1: Make a question

Step 2: Do some research for that question.

Step 3: Hypothesis ( a guess what might happen during the experiment)

Step 4: Test and collect data

Step 5: Conclusion ( what you learned from the experiment)

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Stars fuse most of the hydrogen in the entire star before they die.<br> 2 poir<br> True<br> False
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Once all hydrogen is depleted the star begins to die
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What's the simplest approach to solve a physics dimensional question ​
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Explanation:

<em><u>If Q is the unit of a derived quantity represented by Q = MaLbTc, then MaLbTc is called dimensional formula and the exponents a, b and, c are called the dimensions.</u></em>

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3 years ago
Jake is helping Fin push a box at a constant velocity up an incline that makes an angle of 30.0° above the horizontal by applyin
andre [41]

Given data

The angle of inclination of the plane is theta = 30 degree

The applied force in the inclined plane is F = 94 N

The distance moved in the inclined plane is d = 2.30 m

The coefficient of kinetic friction is u_k = 0.280

The free-body diagram of the above configuration is shown below:

Here, the normal reaction force on the box is N, the acceleration due to gravity is denoted as g, the friction force on the box is F_f, and the mass of the box is denoted as m.

(a)

The expression for the work done by the pushing force is given as:

W=Fd

Substitute the value in the above equation.

\begin{gathered} W=94\text{ N}\times2.30\text{ m} \\ W=216.2\text{ J} \end{gathered}

Thus, the work done by the pushing force is 216.2 J.

(b)

The box is moving at the constant velocity, therefore, the pushing force will be equal to the frictional force and the component of the gravitational force in the inclined plane.

\begin{gathered} F=F_f+mg\sin \theta \\ F=\mu_kN+mg\sin \theta \end{gathered}

The expression for the normal reaction force is given as:

N=mg\cos \theta

The expression for the mass of the box is given as:

\begin{gathered} F=\mu_k\times mg\cos \theta+mg\sin \theta \\ m=\frac{F}{\mu_kg\cos \theta+g\sin \theta} \end{gathered}

Substitute the value in the above equation.

\begin{gathered} m=\frac{94\text{ N}}{0.28\times9.8m/s^2\times\cos 30^o+9.8m/s^2\times\sin 30^0} \\ m=12.9\text{ kg} \end{gathered}

Thus, the mass of the box is 12.9 kg.

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1 year ago
A combination reaction is when two or more _____ combine to form one product. A decomposition reaction is when a substance break
Leya [2.2K]

Answer:

elements

Explanation:

4 0
3 years ago
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