The top of a ladder slides down a vertical wall at a rate of 0.18 m/s. At the moment when the bottom of the ladder is 3.6 m from the wall, it slides away from the wall at a rate of 0.3 m/s. How long is the ladder

The discovery that the universe appears to be expanding led to a widely accepted theory called a.) the big bang theory b.) the doppler effect c.) hubble’s law d.) solar nebular theory e.) the seyfert theory

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.