How do you find the height to this question? An object with a mass of 1.80kg is on a tabletop that is 0.750m from the floor. The object is raised 1.20m from the tabletop and held there. What is the gravitational potential energy in relation to the tabletop?

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.