A1.0-kg block and a 2.0-kg block are pressed together on a horizontal frictionless surface with a compressed very light spring between them. (the blocks are not attached to the spring.) the blocks are then released and the spring uncompresses. immediately after the blocks lose contact with the spring, which statement below is true? a. the magnitude of the momentum of the heavier block will be greater than the magnitude of the momentum of the lighter block. b. the lighter block will have more kinetic energy than the heavier block. c. both blocks will both have the same amount of kinetic energy. d. both blocks will have equal speeds. e. the heavier block will have more kinetic energy than the lighter block.

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.

In a wind tunnel the speed changes as the cross sectional area of the tunnel changes. if the speed in a 6' x 6' square test section is 100 mph, what was the speed upstream of the test section where the tunnel measured 20' x 20'? use conservation of mass and assume incompressible flow. conservation of mass requires that as the flow moves through a path or a duct the product of the density, velocity and cross sectional area must remain constant; i.e., that ova-constant. a model is being tested in a wind tunnel at a speed of 100 mph if the flow in the test section is at sea level standard conditions, what is the pressure at the model's stagnation point? (a) the tunnel speed is being measured by a pitot-static tube connected to a u- tube manometer. what is the reading on that manometer in inches of water? (b) at one point on the model a pressure of 2058 psf is measured. what is the local airspeed at that point?