a 10m long wire has a diameter of 0.1mm is heated from 0 to 100. the material of the wire has resistivity of 2.4*10^-4 and temperature dependence 0.0019

Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20

Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?