A is a shere that is travelling with a velocity of (3,7)&has a mass of 5k. g.it collides with sphere B & both particles move together with a velocity of (1,4)m/s after collision, sphere B has a mass of 4k. g. find the velocity of B before the collision?

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

Match the atomic particles with their characteristics. 1. made of two protons and two neutrons neutron 2. similar to an electron; positive charge neutrino 3. orbits nucleus; negative charge positron 4. bundle of energy; zero charge proton 5. found in nucleus; positive charge meson 6. very unstable; +, -, or zero charge gamma 7. found in nucleus; zero charge electron 8. negative particle; negative charge beta 9. atomic energy converted to mass alpha

Study the diagram showing the range of temperature in the earth’s layers. which temperature most likely corresponds to the asthenosphere? 1,613°c 2,521°c 3,628°c 6,217°c