12. A man pushes a box of 40 kg up incline of 15°, if the man applies a horizontal force 200N and the box moves up the plane a distance of 20 m at a constant velocity and the
coefficient of friction is 0.10, find a work done by the man on the box, b. work done
against friction

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

First to answer will be the brainliest i need the answer asap

Apoint charge +q is at the origin. a spherical gaussian surface centered at the origin encloses +q. so does a cubical surface centered at the origin and with edges parallel to the axes. select "true" or "false" for each statement below. the electric flux through the spherical surface is greater than that through the cubical surface. suppose (for this statement only), that q is moved from the origin but is still within both the surfaces. the flux through both surfaces remains unchanged. the area vector and the e-field vector point in the same direction for all points on the spherical surface. the e-field at all points on the spherical surface is equal due to spherical symmetry. the flux through the spherical gaussian surface is independent of its radius.