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SpyIntel [72]
3 years ago
12

A farmer conducts an experiment to determine whether or not feeding his milk cows an organic diet affects the taste of the cow's

milk. He selects two cows and feeds them equal amounts of food. One cow receives organic food and the other cow receives food that is not organic. The farmer concludes cows that eat organic food produce milk that tastes better. Based on his experiment, the farmer develops an advertising campaign promoting his milk as better tasting because his cows are fed organic food. Why might some consumers find his advertising misleading?
a)Because the farmer did not offer taste testing for the public before advertising.b)Because the farmer is not offering a return policy for the milk in the event that his customers do not like the taste.c)Because the farmer tested only 2 cows giving insufficient data to from a reliable conclusion.
Physics
2 answers:
valentinak56 [21]3 years ago
8 0
I think it would be C. Because if the farmer only tests two cows, it could be different with other cows. But it may also be B, but I think most likely it would be C.
Veseljchak [2.6K]3 years ago
3 0

Answer: c) Because the farmer tested only 2 cows giving insufficient data to from a reliable conclusion.

Explanation:

The independent variable in this experiment is the food the effect of which is required to be observed on the cow milk taste. The cow milk taste is the dependent variable.

The results of this experiment can be misleading this is because of the fact that the sample size for the experiment was low that is just 2 cows. This cannot help to decide that the cow which receives the organic food yields tasty milk it may dependent upon the cow species, health of the cow and other factors.    

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A small metal ball with a mass of m = 62.0 g is attached to a string of length l = 1.85 m. It is held at an angle of θ = 48.5° w
notka56 [123]

The distance x will the ball land after flies off with a horizontal initial velocity  is 3.0635 m.

<h3>What is mechanical energy?</h3>

The mechanical energy is the sum of kinetic energy and the potential energy of an object at any instant of time.

M.E = KE +PE

A small metal ball with a mass of m = 62.0 g is attached to a string of length l = 1.85 m. It is held at an angle of θ = 48.5° with respect to the vertical.

The ball is then released. When the rope is vertical, the ball collides head-on and perfectly elastically with an identical ball originally at rest. This second ball flies off with a horizontal initial velocity from a height of h = 3.76 m, and then later it hits the ground.

The conservation of energy principle states that total mechanical energy remains conserved in all situations where there is no external force acting on the system.

Kinetic energy  = Potential energy

1/2 mv² =mgh₁

The velocity at the bottom, when the height h = 5m, is

v= √2gh₁...................(1)

The vertical height h₁ = l- lcosθ

h₁ = l- lcosθ

h₁ = 1.85 - 1.85cos48.5°

h₁ =0.6241 m

Putting the values in equation (1), we get

v = √2x 9.81 x0.6241

v = 3.499 m/s

The horizontal distance traveled is

x = vt

x = v x √2h/g

Plug the values, we get

x =  3.499 x √2x3.76 / 9.81

x = 3.0635 m

Thus, the horizontal distance ball travels is  3.0635 m.

Learn more about mechanical energy.

brainly.com/question/13552918

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6 0
2 years ago
A cubic meter (m³) is ______ a cubic centimeter (cm³).
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Answer:

C. equal to

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The binding energies of K-shell and L-shell electrons in a certain metal are EK and EL, respectively, If a Kαx ray from this met
Svetach [21]

Answer:

The separation distance between the parallel planes of an atom is hc/2sinθ(EK - EL)

Explanation:

The relationship between energy and wavelength is expressed below:

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Considering the condition of Bragg's law:

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For the first order Bragg's law of reflection:

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Where 'd' is the separation distance between the parallel planes of an atom, 'h' is the Planck's constant, 'c' is the velocity of light, θ is the angle of reflection, 'EK' is the energy of the K shell and 'EL' is the energy of the K shell.

Therefore, the separation distance between the parallel planes of an atom is hc/2sinθ(EK - EL)

5 0
3 years ago
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