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Ugo [173]
3 years ago
12

ANSWER BELOW QUESTIONS:

Physics
2 answers:
STatiana [176]3 years ago
7 0

Answer:

Never Cry Wolf (1983)

Explanation:

1. Describe Tyler's scientific question.

<em>Were the wolves the main killers of the rapidly decreasing of caribou population?</em>

As he studies the population however, he discovers the wolves are not the main predators of the caribou at all, in fact the two species coexist peacefully. The real cause for the caribou population decline is discovered to be over hunting by the Eskimos and local hunters.

2. What was Tyler's hypothesis?

The first hypothesis that he addresses is the information he has received from the authorities and the decrease in population by the Wolves. However, as he approaches his behavior, he discovers that new hypotheses should be considered. This is due to the fact that he notes that the Wolves are not 'aggressive' as the compilations show, but also that they can live with the coribous in a peaceful manner.

This is why it poses three hypotheses:

- The wolves are not as aggressive as they seem, so a description of their lifestyle is necessary

- Wolves require another diet to survive in the winter in the absence of the caribous

- Wolves use a different sleep style from humans, so it is necessary to inquire if it is more effective than that of men.

3. Describe Tyler's experiment.

<em>Lifestyle assimilation experiment</em>

To understand the way of life of the wolves, Tyler tries to imitate him.

When approaching them, he establishes a store and begins his surveillance day and night.

<em>Wolf population experiment</em>

To gather more information about the wolf population and get an idea of the amount of wolves in the area, Mowat and a local Eskimo toured the Canadian Arctic to observe them.

<em>Diet experiment</em>

Upon observing the wolves, he discovered that the diet consisted of mice and not caribou. In order to demonstrate that this diet is possible, he decides to continue the same diet

4. What was the independent variable in Tyler's experiment?

The independent variable is mice, because you need to modify them to understand if they are enough or not for the diet.

5. What were the dependent variable(s)?

The dependent variable is proteins, minerals, carbohydrates and other foods that are part of a diet. In this case, the necessary to survive.

6. Describe the experiment's constants.

The constants are those variables that the researcher does not modify during his experiment. In this case the number of mice you eat per day.

7. What data was collected, recorded and analyzed?

For the particular case of the diet, he discovered that mice are enough to eat a diet. However, he also noted that the 10-minute leisurely sleep of wolves, during the day, is much more relaxing than the continuous 8 hours of sleep.

He also discovered that the population of wolves had decreased considerably.

8. What was Tyler's conclusion?

Indiscriminate hunting by the natives was decreasing the population of animals in the region.

9. How did Tyler publicize his results?

It is understood that the protagonist made a compilation of his results and returned to the 'civilization' shows his data obtained to the government entities for the respective action taking.

10. What could Tyler have done differently to increase the “validity” of the experiment?

The videographic and photographic record would have allowed to obtain many more details to understand the behavior of the animals.

11. Give a name to Tyler's Experiment.

Fun, food, and fear.

Bogdan [553]3 years ago
3 0

Answer:

why should we do , do by your own , no sense

Explanation:

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Slav-nsk [51]

Answer:

945 j

Explanation:

You have just given the ball kinetic energy, which is given by the following equation:

KE= 1⁄2 m v2 = 1⁄2 (2.1 kg)(30 m/s)2 = 945 Joules

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4 years ago
Is there a "real" simple machine that has an efficiency of 100%?
VARVARA [1.3K]

Answer:

NO

Explanation:

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8 0
3 years ago
Which graph accurately shows the relationship between kinetic energy and speed as speed increases?
mixer [17]

Answer:

B

Explanation:

kinetic energy (KE) is the energy possessed by moving bodies. It can be expressed as:

KE = \frac{1}{2}mv^{2}

Where: m is the mass of the object, and v its speed.

For example, a stone of mass 2kg was thrown and moves with a speed of 3 m/s. Determine the kinetic energy of the stone.

Thus,

KE =  \frac{1}{2} x 2 x 3^{2}

     = 9

KE = 9.0 Joules

Assume that the speed of the stone was 4 m/s, then its KE would be:

KE =  \frac{1}{2} x 2 x 4^{2}

     = 16

KE = 16.0 Joules

Therefore, it can be observed that as speed increases, the kinetic energy increases. Thus option B is appropriate.

3 0
3 years ago
Two boats start together and race across a 48-km-wide lake and back. boat a goes across at 48 km/h and returns at 48 km/h. boat
jolli1 [7]

Answer:

Time required by boat 1 for the round trip is less than that of boat 2.

Hence, boat 1 wins.

Explanation:

Case 1: Boat 1

Speed of boat = \frac{distance of river}{time}

time = \frac{distance of river}{speed of boat}

While going to another end

time = \frac{distance of river}{speed of boat}

time = \frac{48}{48}

time = 1 hour

While going back,

time = \frac{distance of river}{speed of boat}

time = \frac{48}{48}

time = 1 hour

Total time taken by boat 1 is,

Total time by boat 1 = 1 hour + 1 hour = 2 hour

Total time by boat 1 = 2 hour

Total time taken by boat 1 for the round trip is 2 hour.

Case 2: Boat 2

Speed of boat = \frac{distance of river}{time}

time = \frac{distance of river}{speed of boat}

While going to another end

time = \frac{distance of river}{speed of boat}

time = \frac{48}{24}

time = 2 hour

While going back,

time = \frac{distance of river}{speed of boat}

time = \frac{48}{72}

time = 0.66 hour

Total time taken by boat 2 is,

Total time by boat 1 = 2 hour + 0.66 hour

Total time by boat 1 = 2.66 hour

Total time taken by boat 2 for the round trip is 2.66 hour.

Time required by boat 1 for the round trip is less than that of boat 2.

Hence, boat 1 wins.

5 0
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Superman attempts to drink water through a very long vertical straw. With his great strength, he achieves maximum possible sucti
Stells [14]

Answer:

10.32874 m

Explanation:

P_a = Atmospheric pressure = 101325 Pa

g = Acceleration due to gravity = 9.81 m/s²

h = Height of water

\rho = Density of water = 1000 kg/m³

If the walls of the tube do not collapse that means that maximum pressure inside will be the atmospheric pressure

Atmospheric pressure is given by

P_a=\rho gh\\\Rightarrow h=\dfrac{P_a}{\rho g}\\\Rightarrow h=\dfrac{101325}{1000\times 9.81}\\\Rightarrow h=10.32874\ m

The maximum height to which Superman can lift the water is 10.32874 m

On the Moon there is no atmosphere so no atmospheric pressure which means when the straw is placed in water water will not rise in the tube.

5 0
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