2. Match the following:
Larva 'of butterfly
10
Earthworm
Sole
Annelida
Vacuoles
Protozoa
Caterpillar
Storage tanks
Give birth to young ones
Dog
Paramecium
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Ответ:
Tricky man
Explanation:
Very tricky
Ответ:
Ответ:
Explanation:
Terminal velocity is the maximum velocity attained by a body when the net upward force on it is equal to the net downward force as it falls through a fluid from a certain height.
The time required to reach terminal velocity is infinite as the object never reaches absolute terminal velocity and always approaches terminal velocity.
The velocity of a falling object expressed in terms of terminal velocity and time 't' is given as:
Where, is a constant and has units of time.
Now, expressing the above in terms of time 't', we get:
Therefore, the formula to find time to approach terminal velocity is:
When the velocity is 76% of terminal velocity, the time taken is .
When the velocity is 96% of terminal velocity, the time taken is .
When the velocity is 99.5% of terminal velocity, the time taken is and so on..