Aperson places an object on the shelves. 1. at which location on the shelves (w, x, y, or z) would the object have the most gravitational potential energy? explain your answer. a book with a mass of 0.21 kg is placed at location x. a magazine with a mass of 0.11 kg is placed at location y. 2. does the book or the magazine have more potential energy? show your calculations and include units in your answer. a 2.5 kg object is placed at location x where it has 10 j of potential energy. a person bumps the shelf, causing the object to fall to the ground. 3. assuming air resistance is negligible, explain how conservation of energy is demonstrated as the object falls to the ground. 4. calculate the speed of the 2.5 kg object just before it hits the ground. show your calculations and include units in your answer.

a small object of mass 3.66 g and charge -17.6 µc is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. what are the magnitude and direction of the electric field?

answer: i'm not sure which is which for i get confused on it all the time but i can tell you that the answer lies with the convex and concave devices. i hope this you. have a good day and best of luck to you!

explanation:

so here is the information for current research:

-nrel's geothermal analysts, scientists, and engineers perform a full range of research from developing advanced methods of locating and accessing geothermal resources to exploring innovative technologies to extract and produce clean energy from the heat of the earth

and here is the information for the technology of geothermal energy:

-it's clean and sustainable

-resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma

-almost everywhere, the shallow ground or upper 10 feet of the earth's surface maintains a nearly constant temperature between 50° and 60°f (10° and 16°c)

-geothermal heat pumps can tap into this resource to heat and cool buildings

-a geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building

-in the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery system

-in the summer, the process is reversed, and the heat pump moves heat from the indoor air into the heat exchanger

-the heat removed from the indoor air during the summer can also be used to provide a free source of hot water

your answer is c! hope this : )