A100. n block sits on a rough horizontal floor. the coefficient of sliding friction between the block and the floor is 0.250. a horizontal force of 90.0 n acts on the block for 3.00 seconds. calculate the velocity of the block after 3.00 seconds if it starts from rest.

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

Which best represents the law of conservation of mass ?

Sound is a disturbance that travels through a medium as a