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Veseljchak [2.6K]
2 years ago
8

Define fundamental and derived quantities with two example of each. ​

Physics
1 answer:
stich3 [128]2 years ago
4 0

Fundamental quantity : quantities which are independent on other physical quantity .

ex: length,mass,time, current, amount of substance, luminous intensity, thermodynamic temperature,

Derived quantity : quantities which are depend on fundamental quantities.

ex: Area, volume, density, speed, acceleration, force, velocity etc.

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D) 9- mitochondria
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7 0
3 years ago
What causes the rider on a roller coaster to experience the + or - g’s if gravity always remains the same on earth
MA_775_DIABLO [31]

Answer:

Yes both = and - g can be felt by a rider in a roller coaster.

Explanation:

It is crucial to understand how we feel gravity in this case.

We humans have no sensory organs to directly detect magnitude and direction like some birds and other creatures, but then how do we we feel gravity?

When we stand on our feet we feel our weight due to the normal reaction of floor on our feet trying to keep us stand and our weight trying to crush us down. In an elevator we feel difference in our weight (difference magnitudes of gravity) but actually we are feeling the differences in normal reactions under different accelerations of the elevator.

In the case of roller coaster you will feel +g as you  sit on a chair in it, but will feel -g when you are in upside down position as roller coaster move.

When you are seated you will feel the normal reaction of seat on you giving you the feeling +g and the support of the buckles to stay in the roller coaster when you are upside down will give you the -g feeling.

<u>This is just the physics approach</u>, a biological approach can be given in association with sensors relating to ears.

8 0
3 years ago
As you know, the oceans are a complex system that covers most of the earth, and contains a huge amount of resources. Protecting
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3 years ago
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The gamma ray released by each decay carries 140kev of energy. find the total energy e released by decays in the 2 hours.
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First, we would need to know the decaying isotope.
Next, we use the decay formula
A = Ao e^(-kt)
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3 years ago
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Pls help me with this​
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Answer:

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7 0
3 years ago
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