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zhuklara [117]
3 years ago
6

Name the 4 classes of marcolecules and give a funtion for each

Physics
1 answer:
Oksana_A [137]3 years ago
7 0
1. Nucleic Acids - DNA & RNA; <span>molecules that enable living organisms to reproduce genetic information from one generation to the next</span>
2. Carbohydrates - Molecules that provide fuel and build structures in the body
3. Proteins - Molecules that provide structural support, <span>storage, transport, cell communication, movement, and defense
4. Lipids - </span>Molecules that store energy and regulate the body's metabolic processes

Hope that makes sense and helps (:
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A 65.0 kg diver is 4.90 m above the water, falling at speed of 6.40 m/s. Calculate her kinetic energy as she hits the water. (Ne
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Answer:

4452.5 J.

Explanation:

The diver have both kinetic and potential energy.

Ek = 1/2mv² ................. Equation 1

Where Ek = Kinetic Energy of the diver, m = mass of the diver, v = velocity of the diver.

Given: m = 65 kg, v = 6.4 m/s.

Substitute into equation 1

Ek = 1/2(65)(6.4²)

Ek = 1331.2 J.

Also,

Ep = mgh ............................ Equation 2

Where Ep =  Potential energy of the diver when its above the water, h = height of the diver above the water, g = acceleration due to gravity.

Given: m = 65 kg, h = 4.9 m, g = 9.8 m/s²

Substitute into equation 2.

Ep = 65(4.9)(9.8)

Ep = 3121.3 J.

Note: When she hits the water, the potential energy is converted to kinetic energy.

E = Ek+Ep

Where E = Kinetic energy of the diver when she hits the water.

E = 1331.2+3121.3

E = 4452.5 J.

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When you go for a walk which of the following forces is paired with the force of friction on your shoe
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Answer:

static

Explanation:

static friction pushes in the direction you are walking.

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On her trips from home to school, karla drives along the streets after exiting the driveway. She drives 1.85 miles south, 2.43 m
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mote1985 [20]

Answer:

Human activities and natural processes have influenced the change in the global temperature by the following processes

1) Green house gas such as carbon dioxide, methane, ozone, nitrous oxide and fluorinated gases produced by the combustion of fossil fuels the use of  industrial chemicals, the production of coal, and natural gas

2) Deforestation which reduces the natural process of conversion of carbon dioxide to oxygen, thereby, increasing the greenhouse gases in the atmosphere

3) The accumulation of the greenhouse gases in the atmosphere results in the trapping of heat in the atmosphere, causing the atmospheric temperature to rise

4) Changes in the amount of energy produced by the Sun can result in an increase or decrease in the atmospheric temperature

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Explanation:

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netineya [11]

Answer:

The mass of an object is a measure of the object's inertial property, or the amount of matter it contains. The weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it. The pull of gravity on the earth gives an object a downward acceleration of about 9.8 m/s2.

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