Rob and his team have been chosen to build a wind turbine at a local mountain. The turbine needs to generate electrical energy and withstand the harsh winter alpine environment. Rob and his team have done their research on the problem. What would be the next step?

Hydrogen and helium are both members of?

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?