Answer: a) 11.76 m/s b) 7.056 m
Explanation:
The described situation is as follows:
An object is dropped from the top of a tower and when measuring the time it takes to reach the ground that turns out to be 0.02 minutes.
This situation is related to free fall, this also means we have constant acceleration, hence the equations we will use are:
(1)
(2)
Where:
Is the final velocity of the object
Is the initial velocity of the object (it was dropped)
is the acceleration due gravity
is the height of the tower
is the time it takes to the object to reach the ground
b) Begining with (1):
(3)
(4)
(5) This is the final velocity of the object
a) Substituting (5) in (2):
(6)
Clearing :
(7)
(8) This is the height of the tower
Answer:
A
Explanation:
The compressor receive hot refrigerant and raises the pressure and temperature even further as it is send to the condenser.
John Glenn is the first American to orbit the Earth.
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12 divided by 2/5 is 30.
The difference between 764.7 and 45.39 is 719.31.
:)
Answer: opposite
Explanation:
Action reaction forces act in opposite direction to each other.
