In chemistry and physics, the atomic theory explains how our understanding of the atom has changed over time. Atoms were once thought to be the smallest pieces of matter. ... The first idea of the atom came from the Greek philosopher Democritus.
I hope this helps!
Answer: well you get it for energy i think right
Explanation:
Option B makes best sense, correct me if i’m wrong
Answer:
- translation
- rotation, traslation
- traslation, rotation
- vibrating
Explanation:
El movimiento de un cuerpo cae por su propio peso <u>traslación</u>.
El movimiento de las ruedas de una bicicleta al ser pedaleada <u>rotación, traslación</u>.
El movimiento de la Tierra alrededor de sol <u>traslación, rotación</u>.
El movimiento de la cuerda de una guitarra cuando se está tocando música <u>vibración</u>.
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
The movement of a body falls under its own weight <u>translation</u>.
The movement of the wheels of a bicycle when being pedaled <u>rotation, translation.</u>
The movement of the Earth around the sun, <u>translation, rotation</u>.
The movement of a guitar string when playing music <u>vibrating</u>.
Answer:
The correct option is;
B. 8 m, because he has to apply less force over a greater distance
Explanation:
In the given question, in order for the student to lift the boxes onto the tuck with less amount of force, he applies the principle of Mechanical Advantage
The mechanical advantage is given by the measure by which a force is amplified through the use of a tool
Given that the work done = The force × The distance, we have
F₁ × d₁ = F₂ × d₂, which gives;
d₁/d₂ = F₂/F₁
Where;
F₁ = The input force
F₂ = The output force
d₁ = The input distance
d₂ = The output distance
The Mechanical advantage, MA = d₁/d₂ = F₂/F₁
Therefore, when the input distance is increased the input force will be reduced for a given output force