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17 days ago

You find a yellow rock and wonder if it is gold. how could you apply the scientific method to this problem

2 answers:

8 0

In response to the given question, the scientific method is employed to analyze and clarify various natural occurrences.

This method comprises several steps that include making observations, forming a scientific inquiry, conducting background research, proposing a hypothesis, running experiments, gathering data, analyzing results, and drawing conclusions in that order.

For the question at hand, the scientific method will similarly be utilized by researching background information, predicting and putting forth a hypothesis, along with conducting experiments to substantiate or refute the hypothesis. The data collected will then be assessed, leading to conclusions that will determine if the yellow rock is gold or not.

kicyunya [3.2K]17 days ago

6 0

To explore whether the yellow rock is gold, you should formulate a hypothesis grounded in established knowledge about gold and design an experiment to verify that hypothesis. For instance, since the density of gold is well established, your hypothesis could propose that if the rock is indeed gold, the water displacement in a container could be predicted from the rock's weight.

The procedure involves:

1. Investigating existing knowledge related to your inquiry (here, gold).
2. Creating a hypothesis that enables you to make forecasts based on that data.
3. Crafting an experiment to evaluate your predictions.

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A venturi is constructed of a 10.0 cm pipe with a 2.0 cm diameter throat. Water pressure in the pipe is twice atmospheric pressu

Ostrovityanka [3204]

Response:

$P_t=5066250.0696\ Pa=50\ atm$

Clarification:

Provided:

diameter of the pipe, $d=0.1\ m$

the throat's diameter, $d_t=0.02\ m$

flow velocity, $v=0.4\ m.s^{-1}$

The pressure in the pipe is twice the atmospheric pressure:

$P=2\times 101325=202650\ Pa$

To find the water's flow force:

$F=P\times A$

we now calculate the cross-sectional area of the pipe:

$A=\frac{\pi.d^2}{4}$

$A=\pi \times\frac{0.1}{4}$

$A=0.007854\ m^2$

Thus,

$F=202650\times 0.007854$

$F=1591.6094\ N$

Next, we determine the area at the throat:

$A_t=\frac{\pi.d_t^2}{4}$

$A_t=\frac{\pi\times 0.02^2}{4}$

$A_t=0.000314\ m^2$

So, the pressure at the throat becomes:

$P_t=\frac{F}{A_t}$

$P_t=\frac{1591.6094}{0.000314}$

$P_t=5066250.0696\ Pa=50\ atm$

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20 days ago

Early investigators (including Thomas Young) measured the thickness of wool fibers using diffraction. One early instrument used

ValentinkaMS [3465]

Answer:

$w= 1.867\times10^{-2}$

Explanation:

Provided:

fiber diameter d= 18 μm

screen distance D= 30 cm

wavelength λ= 560 nm

from this, we can determine the fringe width

$w=\frac{2\lambda D}{d}$

substituting the values yield

$w=\frac{2\times560\times10^{-9}\times0.3}{18\times10^{-6}$

$w= 1.867\times10^{-2}$

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1 month ago

Determine the sign (+ or −) of the torque about the elbow caused by the biceps, τbiceps, the sign of the weight of the forearm,

Sav [3153]

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21 day ago

1)After catching the ball, Sarah throws it back to Julie. However, Sarah throws it too hard so it is over Julie's head when it r

Softa [3030]

Answer:

$v_{oy}=11.29\ m/s$

$y=7.39\ m$

Explanation:

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