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3 years ago

Arrange the core steps of the scientific method in sequential order.

Physics

2 answers:

enyata [817]3 years ago

8 0

Answer:

A Scientific method is way to investigate observations and answer questions. A hypothesis is formed and there after steps are taken to test the hypothesis and draw conclusion.

The steps of the scientific method are:

State a hypothesis.
Identify the relationship to be tested.
Decide on the dependent and independent variables.
Identify and eliminate any confounding variables.
Test the hypothesis with an investigation.
Analyze the data.
Come to a conclusion based on the data.

andriy [413]3 years ago

4 0

the picture bellow gives you all the answers, this picture was given to my class by my science teacher a few years ago so it is accurate

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A projectile is launched from the ground with an initial velocity of 12ms at an angle of 30° above the horizontal. The projectil

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$vi^{2}sin2thita/g =12^{2}sin2[30]/9.8=12.7$ Answer:

Explanation:

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3 years ago

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A real gas will behave most like an ideal gas under conditions of ________.

KengaRu [80]

Answer: high temperature and low pressure

Explanation:

The Ideal Gas equation is:

$P.V=n.R.T$

Where:

$P$ is the pressure of the gas

$V$ is the volume of the gas

$n$ the number of moles of gas

$R=0.0821\frac{L.atm}{mol.K}$ is the gas constant

$T$ is the absolute temperature of the gas in Kelvin

According to this law, molecules in gaseous state do not exert any force among them (attraction or repulsion) and the volume of these molecules is small, therefore negligible in comparison with the volume of the container that contains them.

Now, real gases can behave approximately to an ideal gas, under the conditions described above and taking into account the following:

When temperature is high a real gas approximates to ideal gas, because the molecules move quickly, preventing the repulsion or attraction forces to take effect. In addition, at low pressures, the volume of molecules is negligible.

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3 years ago

What will sunshine help produce in the body?

andreev551 [17]

Sunshine will help prode vitamin C

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4 years ago

A batter swings at a baseball. The action force is the bat hitting the ball with a force of 5N. What is the reaction force?

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The ball hitting the bat

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4 years ago

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A model rocket is launched straight upward with an initial speed of 56.5 m/s. It accelerates with a constant upward acceleration

marta [7]

Answer:

Maximum height reached by the rocket, h = 202.62 meters

Explanation:

It is given that,

Initial speed of the model rocket, u = 56.5 m/s

Constant upward acceleration, $a=1.96\ m/s^2$

Distance traveled by the engine until it stops, d = 198.8 m

Let v is the speed of the rocket when the engine stops. It can be calculated using the third equation of motion as :

$v=\sqrt{u^2+2ad}$

$v=\sqrt{(56.5)^2+2\times 1.96\times 198.8}$

v = 63.02 m/s

At the maximum height, v = 0 and the engine now decelerate under the action of gravity, a = -g. Let h is the maximum height reached by the rocket.

Again using third equation of motion as :

$v^2-u^2=-2gh$

$h=\dfrac{v^2-u^2}{-2g}$

$h=\dfrac{u^2}{2g}$

$h=\dfrac{(63.02)^2}{2\times 9.8}$

h = 202.62 meters

So, the maximum height reached by the rocket is 202.62 meters. Hence, this is the required solution.

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3 years ago