A boy pushes his sister on a circular swing. What is the speed of his sister on the swing if the boy counts 90 complete swings in 300 seconds and the radius is 1.2 meters?

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.

do you have a formula possibly

conduction, convection, radiation

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