A satellite of mass 4500 kg orbits the Earth in a circular orbit of radius of 7.2 × 106 m (this is above the Earth's atmosphere).The mass of the Earth is 6 × 1024 kg. What is the speed of the satellite?

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

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =