A softball pitcher rotates a 0.250 kg ball around a vertical circular path of radius 0.5 m before releasing it. The pitcher exerts a 33.0 N force directed parallel to the motion of the ball around the complete circular path. The speed of the ball at the top of the circle is 13.0 m/s. If the ball is released at the bottom of the circle, what is its speed upon release

The value is  

Explanation:

From the question we are told that

   The  mass of the ball is

    The radius of the circle is  

    The force exerted is  

    The  speed of the ball on top of the circle is  

Gnerally from the law of energy conservation we have that

Here PE  is the potential energy of the pitcher which is mathematically represented as

=>    

=>  

And  W  is the workdone by the force applied which is mathematically represented as

=>    

=>    

And   is the change in kinetic energy which is mathematically represented as

=>    

=>    

=>    

So

=>    

you go to your settings preference and in the end youll see sth that says "i want to delete my acc" click on it and u'll acc will be deleted but u have to wait.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

hope this ! this is not copied! search it up, it's free of plagiarism!