A man who weighs 900N stands in an elevator on a scale and it reads 1000N. What direction is the elevator accelerating and what is the acceleration of the elevator?

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

Helium decays to form lithium. which equation correctly describes this decay?

Iam hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?