A block of wood is pushed across a rough surface and slides to the right until it comes to a stop. Which of the following correct describes the energy changes of the block?

F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.