Which graph shows both runners moving at the same velocity?

Strong conductivity of plasma allows it to act and react as and

How many grams of aluminum will there be in 98g of al2o3?

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space