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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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The graph in the accompanying figure (Figure 1) shows the magnitude of the force exerted by a given spring as a function of the
serious [3.7K]

The elastic potential energy stored in the stretched spring is 1 J.

<h3>What is Hooke's law?</h3>

Hooke's law states that; provided the elastic limit is not exceeded, the extension of the spring is directly proportional to the force on the spring.

Given that;

Force on the spring = 350 Newton

Distance stretched = 7 centimeters or 0.07 m

Hence;

F = ke

k = F/e = 350 Newton/0.07 m = 5000 N/m

Work done in stretching a spring = 1/2ke^2

= 0.5 × 5000 × (2 × 10^-2)^2 =1 J

Learn more about elastic potential energy: brainly.com/question/156316

4 0
2 years ago
You are holding a finishing sander with your right hand. THe sander has a flywheel which spins counterclockwise as seen from beh
ryzh [129]

Answer:

c. turn downward

Explanation:

From the information given:

To find the tendency of the sander;

We need to apply the right-hand rule torque; whereby we consider the direction of the flywheel, the direction at which the torque is acting, and the movement of the sander toward the right.

Since the flywheel of the sander is in counterclockwise movement, hence the torque direction will be outward placing on the wall. However, provided that the movement of the sander is toward the right, then there exists an opposite force that turns downward which showcases the tendency in the sander is downward.

3 0
3 years ago
A voltage V is applied to the primary coil of a step-up transformer with a 3:1 ratio of turns between its primary and secondary
Snezhnost [94]

Explanation:

Let N_p\ and\ N_s are the number of turns in primary and secondary coil of the transformer such that,

\dfrac{N_p}{N_s}=\dfrac{1}{3}

A resistor R connected to the secondary dissipates a power P_s=100\ W

For a transformer, \dfrac{N_s}{N_p}=\dfrac{V_s}{V_p}

V_s=(\dfrac{N_s}{N_p})V_p

V_s=3V_p...............(1)

The power dissipated through the secondary coil is :

P_s=\dfrac{V_s^2}{R}

100\ W=\dfrac{V_s^2}{R}

V_p^2=\dfrac{100R}{9}.............(2)

Let N_p'\ and\ N_s' are the new number of turns in primary and secondary coil of the transformer such that,

\dfrac{N_p'}{N_s'}=\dfrac{1}{24}

New voltage is :

V_s'=(\dfrac{N_s'}{N_p'})V_p'

V_s'=24V_p...............(3)

So, new power dissipated is P_s'

P_s'=\dfrac{V_s'^2}{R}

P_s'=\dfrac{(24V_p)^2}{R}

P_s'=24^2\times \dfrac{(V_p)^2}{R}

P_s'=24^2\times \dfrac{(\dfrac{100R}{9})}{R}

P_s'=6400\ Watts

So, the new power dissipated by the same resistor is 6400 watts. Hence, this is the required solution.

3 0
3 years ago
Some good estimates about the human body can be made if it is assumed that we are made mostly of water. The mass of a water mole
Bezzdna [24]

Answer:

Explanation:

Given

mass of water molecule m=2.99\times 10^{-26}\ kg

mass of person M=62\ kg

It is given that body is mostly made up of water

suppose n water molecules constitutes 62 kg

so n\times m=M

n=\frac{62}{2.99\times 10^{-26}}

n=20.73\times 10^{26}\ kg

6 0
3 years ago
Which subatomic particle has the smallest mass?
spin [16.1K]

Answer:

quark

Explanation:

neutrón= 1.675 x 10-27 kg

proton=1,673 x 10-27 kg

electron=9,11 x 10-31 kg

quark=7,13 - 14,26 · 10−30 kg

3 0
2 years ago
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