1. Calcula el trabajo que realiza la fuerza de rozamiento sobre un cuerpo de 13kg que se desplaza una distancia de 46 m si el coeficiente de rozamiento entre las superficies es de 0,45.

newton's first law of motion

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards