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icang [17]
3 years ago
6

Matter and energy cycle around our ecosystem, are never being created or destroyed.

Physics
2 answers:
madreJ [45]3 years ago
6 0
Matter and energy cycle around our ecosystem are never being created or destroyed- true
andreyandreev [35.5K]3 years ago
4 0

Answer:

a) True

Explanation:

In a motion there are three things that are conserved, they are called momentum, angular momentum and emery. It is true for all isolated systems.

The conservation of energy principle states that "Energy can neither be created nor be destroyed but it is possible to convert one type of energy into another type of energy."

Based on this principle we can understand that the energy associated with matter is released into ecosystem when it is broken but energy is absorbed back from the ecosystem while binding matter together. The energy absorbed is called (binding energy). The mass itself is a type of energy.

So matter and energy are never being created or destroyed. They are the same since the beginning of universe.

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Click on the boxes below to indicate the number of electrons or protons in each labeled position for a zinc atom (z=30, a=65). P
g100num [7]

Answer:

Name: Zinc

Symbol: Zn

Atomic Number: 30

Atomic Mass: 65.39 amu

Melting Point: 419.58 °C (692.73 K, 787.24396 °F)

Boiling Point: 907.0 °C (1180.15 K, 1664.6 °F)

Number of Protons/Electrons: 30

Number of Neutrons: 35

Classification: Transition metal

Crystal Structure: Hexagonal

Density at 293 K: 7.133 g/cm3

Color: bluish

('lil long, sorry)

7 0
3 years ago
2. Adelia holds a shiny steel spoon with its back (convex surface) facing her eyes at a distance
My name is Ann [436]

Answer:

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(b) An upright image is not seen for object at a distance from a concave mirror further than the focal length of the mirror, which is the spoon in the question

Therefore, the location of her eyes of approximately, 30 cm,  from the mirror is more than the mirror's focal length

Explanation:

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3 years ago
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