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horsena [70]
3 years ago
14

(20 points!) (brainliest) please help <3

Biology
1 answer:
Ede4ka [16]3 years ago
3 0

Answer:

part A is the answer

Explanation:

The tympanic cavity is an air chamber; it contains a chain of movable bones which transmit the vibrations of the tympanic membrane across the cavity to the middle ear.

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A plastic bottle contains 32.5 L of gas at a pressure of 45.7 kPa and
Monica [59]

Answer:

Final pressure, P2 = 362.26 kPa

Explanation:

Given the following data;

Initial volume = 32.5 Liters

Initial pressure = 45.7 kPa

Final volume = 4.1 Liters

To find the final pressure, we would use Boyle's law;

Boyles states that when the temperature of an ideal gas is kept constant, the pressure of the gas is inversely proportional to the volume occupied by the gas.

Mathematically, Boyles law is given by;

PV = K

P_{1}V_{1} = P_{2}V_{2}

Substituting into the equation, we have;

45.7 * 32.5 = P_{2} * 4.1

1485.25 = 4.1P_{2}

P_{2} = \frac {1485.25}{4.1}

P_{2} = 362.26

Final pressure, P2 = 362.26 kPa

5 0
3 years ago
The United States’ fossil fuel shortage of makes the country dependent on outside sources.
Rainbow [258]
The answer is oil.

The United States' fossil shortage of oil makes the country dependent on outside sources. Mineral oil such as crude oil or commonly known as petroleum came from the ancient fossilized organic materials. This resource is limited. The US is now facing a shortage in oil and becoming dependent to some countries such as middle-east countries.
8 0
4 years ago
Explain how most of the electricity produced in the U.S
Ludmilka [50]

Answer:

According to the U.S. Energy Information Administration, most of the nation's electricity is generated by coal, natural gas, and nuclear energy. Electricity is also produced from renewable sources such as hydropower, biomass, wind, geothermal, and solar power.

3 0
3 years ago
Read 2 more answers
Is C2H4O2 carbohydrate
blsea [12.9K]

Answer:

Yes

Explanation:

It's the simplest carbohydrate

4 0
3 years ago
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One of the products of the Kreb's cycle is
nevsk [136]
Answer: Carbon dioxide

Krebs cycle, also known as the citric acid cycle or TCA, uses 1 glucose molecule to produce 2 acetyl Co-A molecules which in turn are broken down to release:

1) 4 CO2
2)2FADH2
3) 6NADH
4) 2ATP
6 0
3 years ago
Read 2 more answers
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