- The water at the bottom of the pot heats up and rises.Colder and denser water takes its place, and will then heat up and start to rise. Which type of heat transfer is demonstrated by the circular motion of the water? Conduction Density Radiation Convection
- 1. Stars begin their lives composed primarily of: a. propane b molten rock 2. Which term best represents the brightness of a celestial object as measured ed from Earth? a. Gravitational Force b. Light Year C. Absolute Magnitude (C) Apparent Magnitude d. uranium. 3. The reaction that produces energy in the sun is called? a. Nuclear Fission b. Nuclear Fusion C. Photosynthesis d. Friction 4. Which of the following statements is correct when referring to retrograde motion: a. It occurs because Earth travels faster around the sun than the outer planets b. Apparent motion shows a planet moving from east to west C. From Earth we can see retrograde motion of all of the planets in our solar system d. Both A and B are correct C. hydrogen. aved fon zsob Ism2001 ticho zhini ai smit
- - In other words the amount of energy put into a system must equal the amount of mechanical energy output __ The Second Law of Thermodynamics states that __ B3.2 Development of Engine Technology - Read p. 206- 214 in textbookVideo -Enrly Theories of Heat Video-Steam Engine History B3.3 Useful Energy and Efficiency pages 215-220 Useful Energy - The purpose of a machine is to convert the initial energy input to the type of desired energy output. Energy input refers to the __ Useful energy output refers to the __
- A vector with magnitude 10 points in a direction 235 degrees counterclockwise from the positive x axis Write the vector in component form.
- note- 9. When a fire burns a log of wood the mass of the ashes left behind is much less than the mass of the original log. Is this an exception to the law of conservation of mass? Explain (3).
