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adell [148]
2 years ago
6

Which animals has a pulse rate of more than 1200 beats per minute?​

Chemistry
2 answers:
Kobotan [32]2 years ago
7 0

Answer:

The pygmy shrew

Explanation:

The pygmy shrew, which weighs in at less than an ounce, has the fastest heartbeat of any mammal at 1,200 beats per minute, according to the National Wildlife Federation.

I believe that would be the Hummingbird. Their hearts can be as fast as 1260 beats per minute. This is typically attained while they are hovering.

When they are just flying, their heart beats approximately 800 beats per minute.

When they are perched on a branch, it drops to around 400 beats per minute.

A lot of people wonder how a Hummingbird can make it through the night without eating, and that's a very good question. They normally have to eat every 15 minutes during the day, and they use their vision to find food including bugs that they snatch right out of the air.

Each night they go into a type of semi-hibernation called Torpor. Their energy consumption drops almost 90%, and their heart beats as low as 40 beats per minute. While they are in this state they are very vulnerable to predators such as tree snakes or anything else that can get to them. It takes them about 30 minutes to reverse this process so they can fly off in the morning and start the eating process all over.

Ket [755]2 years ago
6 0

Answer: The pygmy shrew

Explanation: which weighs in at less than an ounce, has the fastest heartbeat of any mammal at 1,200 beats per minute, according to the National Wildlife Federation.

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Calculate the number of moles of an ideal gas if it occupies 1750 dm3 under 125,000 pa at a temperature of 127 c. a. 0.21 moles
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The number of mole will be 65.81 mole.

An ideal gas would be one for which both the overall volume of the molecules and even the forces that exist between them are so negligible as to have no influence on the behavior of something like the gas.

Number of ideal gas can be calculated by using the formula:

PV = nRT

where, p is pressure, n is number of mole, R is gas constant and T is temperature.

Given data:

V= 1750 dm^{3} = 1750 L

P = 125,000 p = 1.2 atm

R = 0.082 L /mole kelvin

T = 273+127 = 400 K

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n = 65.81 mole.

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