A large fish with a mass of 3.5 kg is swimming due east with a velocity of 4.7 m/s. It swallows a much smaller fish with a mass of 0.4 kg that is initially at rest. Afterward, the two fish move together with the same velocity.
What is the magnitude and direction of their final velocity? (Round your answer to the nearest tenth.)

Which composition of water moves to begin a deepwater current?

Amajor difference radio waves, visible light, and gamma rays is the of the photons, which results in different photon frequencies and wavelengths

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.