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seraphim [82]
3 years ago
10

A pronghorn, the fastest North American animal, is capable of running for at 18 m/s (40 mph) for 10 minutes. The time limit isn’

t because the pronghorn runs of energy, it’s because the pronghorn’s temperature rises, and it must stop to cool down. Why does the pronghorn’s temperature rise during the run?
Physics
1 answer:
Otrada [13]3 years ago
3 0

Explanation:

The increase in the body temperature of pronghorn, the fastest North American animal, results from the chemical energy of the pronghorn converting into kinetic energy with efficiency less than 100%. The remaining energy is converted into heat energy. Thus, raising the temperature of pronghorn.

Due to the chemical energy it gains both kinetic and heat energy.

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A 2320 pound roller coaster starts from rest and is launched such that it creates a 110 ft high hill with a speed of 65 mph. The
Sergeu [11.5K]

Answer: E = 941738.537J

Explanation:

to begin,

given that the mass = 2320 pound = 1052.334 kg

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from our knowledge in work energy theory;

E = Fd + 1/2mv² + mgh

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3 years ago
A car slows down from speed of 72
Nastasia [14]

Explanation:

Given parameters:

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Unknown:

Acceleration = ?

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To solve this problem, convert km/hr to m/s;

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           3600s = 1hr

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         72km/hr = 0.278 x 72  = 20.02m/s

Acceleration is the change in velocity divided by the time taken;

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5 0
3 years ago
Which of the following statements apply to electric charges?
Gre4nikov [31]

Answer:

The statement "If a positively charged rod is brought close to a positively charged object, the two objects will repel " applies to electric charges.

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When a positively charged rod is brought close to a positively charged object, the rod and the object will repel.

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