Two 400-mm diameter disks and a 240-mm diameter disk are joined 125 mm with respect to the axis of the spool. If a force P of 500 N is apploed to the spool through a cord that is wrapped around the cylinder, determine the acceleration aG of the mass center of the spool and the angular acceleration of the spool

real, smaller and upside-down.   so the answer should be 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

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods

answer(20) psi;