4. SEP Engage in Argument What can you say to back the claim that the fossil record
supports the theory of evolution?

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z