Answer:
1. 
2. 
Explanation:
Radial acceleration is:
(1)
With r the radius respects the axis of rotation and v the tangential velocity that is related with angular velocity (ω) by:
(2)
By (2) on (1):
To find the acceleration of the tube with the fall, we can use the expression:
(3)
Due impulse-momentum theorem:
(4)
with p the momentum and J the impulse. By (4) on (3):
And using Newton's second law (F=ma) and that (P=mv):
(5)
Final velocity is the velocity just after the encounter with hard floor, and initial momentum us just before that moment so the first one is zero and the second one can be found sing conservation of energy:
So (5) is:
solving for a:
It’s negative because is opposed to the tube movement.
Answer:
–8.35 m/s²
Explanation:
We'll begin by converting 104 km/h to m/s. This can be obtained as follow:
3.6 Km/h = 1 m/s
Therefore,
104 km/h = 104 km/h × 1 m/s / 3.6 Km/h
104 km/h = 28.89 m/s
Thus, 104 km/h is equivalent to 28.89 m/s.
Finally, we shall determine the deceleration of the car. This can be obtained as follow:
Initial velocity (u) = 28.89 m/s
Final velocity (v) = 0 m/s
Distance (s) = 50 m
Deceleration (a) =?
v² = u² + 2as
0² = 28.89² + (2 × a × 50)
0 = 834.6321 + 100a
Collect like terms
0 – 834.6321 = 100a
–834.6321 = 100a
Divide both side by 100
a = –834.6321 / 100
a = –8.35 m/s²
Thus, the deceleration of the car is –8.35 m/s².
I think that the question is simply asking whether the statement is correct.
The statement is wrong! The scientific endeavor (the work of the scientists, the pursue of knowledge) can be potentially harmful. For example, many tests of human medicine have to be performed on animals, and often the medicine causes great suffering in the animals (and gets rejected for testing on humans).
Is this a multiple choice question?
If not, well then the answer is that the volcano sort of sinks into the ground. Like it sort of subducts.
Hope this helped!!!:)
<span />
Answer: true
Explanation: this is were it is located
