A man stands on a scale in an elevator as shown here. the force of his weight when the elevator is still is fg downward. suppose the elevator's acceleration downward is 1/4 g. the weight of the man, fs, is what

The weigth of a body decrease in a coal mine why?

How does gravity affect potential energy?

Last question of the day Predict what will happen to the sun, the solar system, and the milky way in billions of years

You quickly flick a limp jump rope that is held firmly by a friend at the other end. What happens? The up-and-down movement of your hand creates a longitudinal wave. The up-and-down movement of your hand creates a transverse wave.

A _ increases it decreases voltage in a power line A. Motor B. Generator C. Ammeter D. Transformer

What are some ways the oceanic crust and the continental crust are alike?

Why is gangue sometimes reprocessed.

4.7 cm. The tube is sealed at one end and loaded with lead shot to give it a total mass of M = 130 g. The tube floats in water (of density 1 g/cm3) in vertical position, loaded end down.

Why is it incorrect to say that vascular tissue, gametophytes, and fronds are all found mosses

Can the validity of a model be limited, or must it be universally valid? How does this compare to the required validity of a theory or a law?