A truck of mass 2500gm. moving at. 15 m. 's cellulose with a. car. of mass 1000. kg. moving. at. 5m/s. in. the. opposite. direction. with. what. velocity. would the two move together

What is the relationship between the wavelength of a wave and it's energy?

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.