7. From this lab we see that to map the electric field of an unknown charge distribution (or pattern), we would .a) first draw the charge distribution with all the charges. The map of the electric field is exactly the same shape as the charge distributionb) first measure the electric potential (since it is easier to measure) and draw the equipotential lines. Then draw lines parallel to these equipotential lines to make a visual map of the electric fieldc) first measure the electric potential (since it is easier to measure) and draw the equipotential lines. Then draw perpendicular lines to these equipotential lines to make a visual map of the electric fieldd) measure the electric field directly and then draw the electric field lines

Under conditions for which the same room temperature is maintained by a heating or cooling system, it is not uncommon for a person to feel chilled in the winter but comfortable in the summer. provide a plausible explanation for this situation (with supporting calculations) by considering a room whose air temperature is maintained at 20â°c throughout the year, while the walls of the room are nominally at 27â°c and 14â°c in the summer and winter, respectively. the exposed surface of a person in the room may be assumed to be at a temperature of 32â°c throughout the year and to have an emissivity of 0.90. the coefficient associated with heat transfer by natural convection between the person and the room air is approximately 2 w/m2 â‹…â‹… k. what is the ratio of the thermal resistance due to convection to the thermal resistance due to radiation in the summer? what is the ratio of thermal resistances in the winter

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.

What is a subatomic particle with a negative charge and very little mass?