Which best describes a metal such as Silver (Ag)? Group of answer choices

Brittle, a good conductor, and ductile.

Lustrous, malleable, and forms cations.

Dull, highly reactive, and a semiconductor.

Low melting point, forms anions, good insulator.

vapour or gas assuming atmospheriv pressure

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

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according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

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