The top of lake is frozen as atmospheric temperature is -10 degree celsius the temperature of the bottom of the lake is most likely to be? ?
give the answer in degree celsius..
the options are:
-4°
0°
4°
-6°

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?