Ahorizontal force of 80n is required to push a piece of furniture across a floor to the right at a constant velocity. how much friction acts on the furniture when it is at rest on a horizontal surface

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature