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4 years ago

Select all that apply. Which of the following have energy stored as chemical energy? nuclear petroleum biomass geothermal

2 answers:

6 0

Energy is a property that is capable of causing changes in a matter, it is measured in joules. Chemical energy is the energy derived from the chemical bonding between atoms. In this case, petroleum and biomass have energy stored in form of chemical energy. Energy can be stored and can never be destroyed or created but is transformed from one form to another.

Annette [7]4 years ago

5 0

The answer is petroleum and biomass

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The total number of protons and neutrons in an atom's nucleus is called 5

mrs_skeptik [129]

Answer:

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3 years ago

Explain why it is important that the balloon is made from an electrical insulator.

aleksandr82 [10.1K]

Explanation:

object made of rubber, such as the ballons are elecrical insulators, meaning that they resist electric charges flowing through them..

when the ballon has been rubbed enough times to gain a sufficient negative charge, it will be attracted to the wall

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3 years ago

The energy an object possesses due to its form and position is know as

zvonat [6]

I believe the energy being described is the potential energy. Potential energy is the stored energy, it is the energy an object has because of its position or shape. It is also the energy possessed by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors. The major types of energy include the gravitational energy of an object that depends on its mass and its distance from the center of mass.

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4 years ago

Ignoring friction, what is the acceleration of a 75.0 kg object which is acted upon by an

natulia [17]

Explanation:

we can use the formula F = ma

hence,

500 = 75a

a = 6.666 m/s² or 6(2/3) m/s²

hope this helps.

3 0

2 years ago

A .5kg football is thrown with a velocity of 15m/s to the right. A stationary receiver catch the bail and bring it to rest in 0.

storchak [24]

<h3>Answer:</h3>

375 N

<h3>Explanation:</h3>

Topic tested: Newton's Law of motion

The question is testing on the application of Newton's second Law of motion.

We are given;

Mass of the football = 5 Kg
Initial velocity of the football, Vf = 15 m/s
Time taken to bring the ball to rest = 0.2 s
Final velocity, Vo = 0 m/s ( since the ball went to rest)

We are required to determine the force exerted to bring it to rest.

According to the Newton's second law of motion the resultant force and rate of change in momentum are directly proportion.

Therefore;

$F=\frac{(MVf-MVo)}{t}$

Thus;

$F=\frac{(5kg.5m/s)-(5kg.0m/s)}{0.2s}$

$F=375Newtons$

Force = 375 N

Hence, the force exerted on the ball by the receiver was 375 N

5 0

3 years ago