Un obrero ejerce una fuerza horizontal que empuja una caja de peso 400 Newtons a lo largo de 6 metros en piso plano y áspero. Si la fuerza de fricción es de 24 Newtons, hallar en Joules el trabajo total realizado para desplazar la caja.

b, fewer problems later! good luck

and whats your questoin

among other factors, composers started writing dynamic markings in their scores because "new instruments allowed for more dynamic ranges and contrast."

dynamics allude to the loudness or softness of music. dynamics offer an approach to demonstrate articulation in sheet music. they to drive the enthusiastic substance of music through volume and force. maybe you could alter both the volume and the shading profundity on your screen at the same time. we can likewise think about the force side of elements as the quality of a note. a few notes are intended to be played delicately and gently, while others are intended to be played all the more firmly.  

some dynamics markings have a letter 'm,' which remains for mezzo, signifying 'medium.' so a mezzo piano unique stamping resembles this (mp) and intends to play medium calm, while a mezzo specialty dynamic resembles this (mf) and intends to play medium loud.

answercountries with higher real income per capita tend to have higher levels of this index.