Answer:
centripetal acceleration of the ball is 6.9 m/s/s
tangential speed of the ball is 2.2 m/s
Explanation:
As we know that ball complete 5 rotations in 10 seconds
so frequency of rotation of ball is given as
now we know that angular frequency is given as
Now centripetal acceleration is given as
now the velocity of the ball at this angular frequency is given as
The correct scientific statement is that force get things going and forces also stop the motion of an object.
<h3>What is force?</h3>
Force is an agent which causes a change in the state of rest or motion of an object.
Force can also be described as a pull or push agent.
Applied force will start an object at rest going or stop the motion of a moving object.
Forces may be contact or non-contact forces.
The misconception in the statement is that an object will run of out of energy.
However, an object never runs out of energy because energy is neither created nor destroyed. Also, an object stopping is due to the fact that other forces are acting to stop its motion.
Therefore, the correct statement is that Force get things going and also stop the motion of an object.
In conclusion, the application of force will result in changes ij the state ad motion of objects.
Learn more about forces at: brainly.com/question/12970081
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Answer:
Technician B is correct
Explanation:
Electrical Switches makes or brakes the flow of signal (current or voltage) in a circuit.
The Technician B that says the switch contacts are closed is correct because it is until when the circuit is continues that voltage flows across the switch and voltmeter will read the amount of voltage present in the circuit. This simply means closed circuit.
Technician A is not correct because when the switch contacts are open, voltage does not flow and no reading will be measured.