Along with the separation techniques discussed in class, chromatography is another one. We learned that we use the physical properties of substances in mixtures to separate them. Which physical property do you think was used to separate the dyes in your ink? Explain

the body's situation won't change the forces are equal opposit and on the same body

continuous conducting path for current, power supply

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