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pishuonlain [190]
3 years ago
5

Exam

Physics
2 answers:
Sergeeva-Olga [200]3 years ago
5 0
Answer: D- output force

Explanation: for example, you exert force on the handle of a shovel when you use it to lift soil. You exert the improve force that moves the machine on a certain distance, called the input distance. The force the machine exerts on the object (DIRT) is called the output force.
Sedaia [141]3 years ago
3 0
Out put work
explanation:
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6 0
3 years ago
Se lanza una pelota de béisbol desde la azotea de un edificio de 25 m de altura con velocidad inicial de magnitud 10 m/s y dirig
MissTica

Answer:

 v_f = 24.3 m / s

Explanation:

A) In this exercise there is no friction so energy is conserved.

Starting point. On the roof of the building

         Em₀ = K + U = ½ m v₀² + m g y₀

Final point. On the floor

         Em_f = K = ½ m v_f²

         Emo = Em_g

         ½ m v₀² + m g y₀ = ½ m v_f²

        v_f² = v₀² + 2 g y₀

         

let's calculate

        v_f = √(10² + 2 9.8 25)

        v_f = 24.3 m / s

6 0
3 years ago
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