Whenever there is a change of state, such as a solid to liquid or liquid to gas, heat energy can be added without a temperature change because a) the added energy is not needed. b) the energy is lost to the system. c) the change of state requires energy. d) the energy is lost to the atmosphere. 11) which would be best categorized as heat transfer by convection? a) wearing a white shirt to stay cool on a summer day. b) noodles rising and falling in a pot of boiling water c) touching a metal spoon that is sitting in a pot of boiling water d) using a heating blanket to get warm

The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the conductor. a conductor is placed in an external electrostatic field. the external field is uniform before the conductor is placed within it. the conductor is completely isolated from any source of current or charge. part a: which of the following describes the electric field inside this conductor? it is in the same direction as the original external field. it is in the opposite direction from that of the original external field. it has a direction determined entirely by the charge on its surface. it is always zero. part b: the charge density inside the conductor is: 0non-zero; but uniformnon-zero; non-uniforminfinite part c: assume that at some point just outside the surface of the conductor, the electric field has magnitude e and is directed toward the surface of the conductor. what is the charge density η on the surface of the conductor at that point? express your answer in terms of e and ϵ0