Chemical reactions with metals may create some interesting results such as precipitate. what is precipitate? a- a solid that forms when two liquids are mixed b- a solid that forms when two gases are mixed c- a gas that forms when two liquids are mixed d- a liquid that forms when two solids are mixed

Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?