Shane observes that an upward force pushes him up when he sits on a chair. based on his observation which statement is correct friction can act at a distance. normal force can act at a distance. the chair applies a non-contact force called friction. the chair applies a contact force called normal force.

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90