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Silicon, Arsenic and Antimony
Comprised of atoms
Hydrogen. Oxygen and Chlorine
Usually have no luster
Tin, Calcium and Potassium

most of them using statistics and defining how things are being measured

33: i think it’s b

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

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle