Aviscous fluid is flowing through two horizontal pipes. they have the same length, although the radius of one pipe is three times as large as the other. the pressure difference p2 - p1 between the ends of each pipe is the same. if the volume flow rate in the narrower pipe is qa = 2.94 × 102 m3/s, what is the volume flow rate qb in the wider pipe?

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

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.

The slope of a velocity time graph over any interval of time gives the during that interval