Answer:
The area of the edge of a knife's blade is extremely small.
Syringes are used to take blood for blood tests.
When air is sucked out of a drinking straw, the air pressure inside if decreases and the atmospheric pressure outside forces the liquid to go inside the straw.
Explanation:
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Answer:
A) v = 1.885 m/s
B) v = 0.39 m/s
C) E = 0.03 J
D)
Explanation:
Part A
We will use the conservation of energy to find the speed at equilibrium.
where and
Therefore,
Part B
The conservation of energy will be used again.
where
Therefore, v = 0.39 m/s.
Part C
Total energy of the system is equal to the potential energy at amplitude.
Part D
The general equation of motion in simple harmonic motion is
where is the phase angle to be determined by the initial conditions. In this case, the initial condition is that at t = 0, x is maximum. Therefore,
In the tetherball game, struck ball whirls around a pole. The vertical component of the tension balances the weight and the horizontal component of tension provides the centripetal force that points toward the center of the circle.
There are two forces acting on a tether ball as it is rotating in uniform circular motion. The force of tension acts along the rope while the weight acts in downward.
The ball will move in a circular motion due to centripetal force and the tether which keeps the ball linked to the pole pulling to the center. For centripetal force, the tether can be an actual object, like a chain, or it may be a force, like gravity that acts like a tether.
To know more about centripetal force, refer
brainly.com/question/898360
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I believe your answer would be try not to think of the worst things that can happen. <span />
26).
The complete pattern of a pendulum is ...
-- out to one side
-- back to the center
-- out to the OTHER side
-- back to the center.
So, on the graph, the complete period is one up-loop and one down-loop.
That's <em>6 seconds</em>. (b)
27).
This question is just asking for the frequency, without using the word.
Frequency is always (1/period). That's <em>1/6 of a second</em>. (a)
(This kinda makes sense. If you want to do something in 6 seconds, you need to do 1/6 of it every second. Right ?)